/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:51:20,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:51:20,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:51:20,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:51:20,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:51:20,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:51:20,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:51:20,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:51:20,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:51:20,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:51:20,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:51:20,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:51:20,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:51:20,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:51:20,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:51:20,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:51:20,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:51:20,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:51:20,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:51:20,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:51:20,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:51:20,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:51:20,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:51:20,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:51:20,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:51:20,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:51:20,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:51:20,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:51:20,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:51:20,745 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:51:20,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:51:20,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:51:20,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:51:20,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:51:20,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:51:20,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:51:20,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:51:20,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:51:20,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:51:20,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:51:20,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:51:20,748 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:51:20,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:51:20,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:51:20,749 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:51:20,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:51:20,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:51:20,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:51:20,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:51:20,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:51:20,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:51:20,750 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:51:21,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:51:21,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:51:21,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:51:21,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:51:21,083 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:51:21,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-08-22 19:51:21,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a6973a/468b17d2bbb94169bb75e247e1d2cd69/FLAG7b31b106a [2020-08-22 19:51:21,624 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:51:21,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-08-22 19:51:21,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a6973a/468b17d2bbb94169bb75e247e1d2cd69/FLAG7b31b106a [2020-08-22 19:51:21,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a6973a/468b17d2bbb94169bb75e247e1d2cd69 [2020-08-22 19:51:21,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:51:21,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:51:21,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:51:21,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:51:21,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:51:21,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:51:21" (1/1) ... [2020-08-22 19:51:21,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fef84be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:21, skipping insertion in model container [2020-08-22 19:51:21,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:51:21" (1/1) ... [2020-08-22 19:51:22,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:51:22,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:51:22,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:51:22,242 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:51:22,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:51:22,383 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:51:22,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22 WrapperNode [2020-08-22 19:51:22,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:51:22,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:51:22,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:51:22,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:51:22,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (1/1) ... [2020-08-22 19:51:22,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:51:22,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:51:22,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:51:22,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:51:22,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (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 [2020-08-22 19:51:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:51:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:51:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 19:51:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 19:51:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 19:51:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 19:51:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 19:51:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:51:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:51:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:51:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 19:51:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 19:51:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 19:51:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 19:51:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 19:51:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:51:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:51:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:51:22,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:51:22,983 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 19:51:22,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:51:22 BoogieIcfgContainer [2020-08-22 19:51:22,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:51:22,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:51:22,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:51:22,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:51:22,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:51:21" (1/3) ... [2020-08-22 19:51:22,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c176cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:51:22, skipping insertion in model container [2020-08-22 19:51:22,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:51:22" (2/3) ... [2020-08-22 19:51:22,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c176cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:51:22, skipping insertion in model container [2020-08-22 19:51:22,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:51:22" (3/3) ... [2020-08-22 19:51:22,999 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-08-22 19:51:23,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:51:23,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:51:23,035 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:51:23,060 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:51:23,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:51:23,061 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:51:23,061 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:51:23,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:51:23,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:51:23,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:51:23,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:51:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-08-22 19:51:23,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 19:51:23,105 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:23,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:23,107 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:23,114 INFO L82 PathProgramCache]: Analyzing trace with hash 486796623, now seen corresponding path program 1 times [2020-08-22 19:51:23,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:23,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127302902] [2020-08-22 19:51:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:23,190 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:51:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:51:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:51:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 19:51:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-08-22 19:51:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 19:51:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:23,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127302902] [2020-08-22 19:51:23,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:23,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:51:23,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306652810] [2020-08-22 19:51:23,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:51:23,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:23,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:51:23,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:51:23,648 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 7 states. [2020-08-22 19:51:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:25,682 INFO L93 Difference]: Finished difference Result 708 states and 984 transitions. [2020-08-22 19:51:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 19:51:25,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-08-22 19:51:25,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:25,707 INFO L225 Difference]: With dead ends: 708 [2020-08-22 19:51:25,708 INFO L226 Difference]: Without dead ends: 516 [2020-08-22 19:51:25,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:51:25,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-08-22 19:51:25,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 347. [2020-08-22 19:51:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-08-22 19:51:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 433 transitions. [2020-08-22 19:51:25,873 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 433 transitions. Word has length 102 [2020-08-22 19:51:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:25,874 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 433 transitions. [2020-08-22 19:51:25,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:51:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 433 transitions. [2020-08-22 19:51:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 19:51:25,880 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:25,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:25,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:51:25,881 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2043764254, now seen corresponding path program 1 times [2020-08-22 19:51:25,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:25,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470897472] [2020-08-22 19:51:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:25,885 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:25,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:51:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:51:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:51:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 19:51:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-08-22 19:51:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 19:51:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:26,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470897472] [2020-08-22 19:51:26,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:26,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:51:26,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613335438] [2020-08-22 19:51:26,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:51:26,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:26,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:51:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:51:26,108 INFO L87 Difference]: Start difference. First operand 347 states and 433 transitions. Second operand 8 states. [2020-08-22 19:51:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:27,207 INFO L93 Difference]: Finished difference Result 815 states and 1061 transitions. [2020-08-22 19:51:27,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 19:51:27,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-08-22 19:51:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:27,221 INFO L225 Difference]: With dead ends: 815 [2020-08-22 19:51:27,222 INFO L226 Difference]: Without dead ends: 503 [2020-08-22 19:51:27,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-22 19:51:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-22 19:51:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 338. [2020-08-22 19:51:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-08-22 19:51:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 418 transitions. [2020-08-22 19:51:27,331 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 418 transitions. Word has length 103 [2020-08-22 19:51:27,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:27,332 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 418 transitions. [2020-08-22 19:51:27,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:51:27,332 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 418 transitions. [2020-08-22 19:51:27,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 19:51:27,335 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:27,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:27,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:51:27,336 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:27,336 INFO L82 PathProgramCache]: Analyzing trace with hash -891577735, now seen corresponding path program 1 times [2020-08-22 19:51:27,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:27,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687917620] [2020-08-22 19:51:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:27,339 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:51:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:51:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:51:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 19:51:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-08-22 19:51:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 19:51:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:27,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687917620] [2020-08-22 19:51:27,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:27,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:51:27,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725973325] [2020-08-22 19:51:27,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:51:27,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:27,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:51:27,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:51:27,533 INFO L87 Difference]: Start difference. First operand 338 states and 418 transitions. Second operand 7 states. [2020-08-22 19:51:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:28,959 INFO L93 Difference]: Finished difference Result 1254 states and 1740 transitions. [2020-08-22 19:51:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 19:51:28,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-22 19:51:28,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:28,971 INFO L225 Difference]: With dead ends: 1254 [2020-08-22 19:51:28,972 INFO L226 Difference]: Without dead ends: 951 [2020-08-22 19:51:28,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:51:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2020-08-22 19:51:29,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 685. [2020-08-22 19:51:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-08-22 19:51:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 880 transitions. [2020-08-22 19:51:29,095 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 880 transitions. Word has length 107 [2020-08-22 19:51:29,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:29,098 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 880 transitions. [2020-08-22 19:51:29,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:51:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 880 transitions. [2020-08-22 19:51:29,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-22 19:51:29,102 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:29,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:29,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:51:29,103 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:29,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:29,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1602138582, now seen corresponding path program 1 times [2020-08-22 19:51:29,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:29,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297466835] [2020-08-22 19:51:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:29,148 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:51:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:51:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:51:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 19:51:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-08-22 19:51:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 19:51:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-22 19:51:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:29,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297466835] [2020-08-22 19:51:29,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:29,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:51:29,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133867101] [2020-08-22 19:51:29,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:51:29,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:29,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:51:29,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:51:29,404 INFO L87 Difference]: Start difference. First operand 685 states and 880 transitions. Second operand 8 states. [2020-08-22 19:51:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:31,439 INFO L93 Difference]: Finished difference Result 2592 states and 3797 transitions. [2020-08-22 19:51:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 19:51:31,439 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-08-22 19:51:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:31,463 INFO L225 Difference]: With dead ends: 2592 [2020-08-22 19:51:31,463 INFO L226 Difference]: Without dead ends: 1943 [2020-08-22 19:51:31,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2020-08-22 19:51:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-08-22 19:51:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1454. [2020-08-22 19:51:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states. [2020-08-22 19:51:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1985 transitions. [2020-08-22 19:51:31,694 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1985 transitions. Word has length 139 [2020-08-22 19:51:31,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:31,696 INFO L479 AbstractCegarLoop]: Abstraction has 1454 states and 1985 transitions. [2020-08-22 19:51:31,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:51:31,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1985 transitions. [2020-08-22 19:51:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-08-22 19:51:31,705 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:31,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:31,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:51:31,706 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:31,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1051815898, now seen corresponding path program 1 times [2020-08-22 19:51:31,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:31,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492608319] [2020-08-22 19:51:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:31,714 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:51:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 19:51:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:51:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:51:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 19:51:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-08-22 19:51:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 19:51:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 19:51:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-22 19:51:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 19:51:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 19:51:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:51:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:51:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:51:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:51:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:51:31,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492608319] [2020-08-22 19:51:31,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:51:31,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:51:31,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279662477] [2020-08-22 19:51:31,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:51:31,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:51:31,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:51:31,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:51:31,969 INFO L87 Difference]: Start difference. First operand 1454 states and 1985 transitions. Second operand 10 states. [2020-08-22 19:51:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:51:33,994 INFO L93 Difference]: Finished difference Result 3752 states and 5602 transitions. [2020-08-22 19:51:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 19:51:33,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2020-08-22 19:51:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:51:34,020 INFO L225 Difference]: With dead ends: 3752 [2020-08-22 19:51:34,020 INFO L226 Difference]: Without dead ends: 2339 [2020-08-22 19:51:34,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-22 19:51:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2020-08-22 19:51:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 1810. [2020-08-22 19:51:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1810 states. [2020-08-22 19:51:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2415 transitions. [2020-08-22 19:51:34,400 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2415 transitions. Word has length 182 [2020-08-22 19:51:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:51:34,401 INFO L479 AbstractCegarLoop]: Abstraction has 1810 states and 2415 transitions. [2020-08-22 19:51:34,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:51:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2415 transitions. [2020-08-22 19:51:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-08-22 19:51:34,481 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:51:34,481 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:51:34,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:51:34,482 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:51:34,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:51:34,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1421271293, now seen corresponding path program 1 times [2020-08-22 19:51:34,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:51:34,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883160280] [2020-08-22 19:51:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:51:34,489 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:51:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:51:34,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:51:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:51:34,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:51:34,626 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:51:34,627 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:51:34,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:51:34,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:51:34 BoogieIcfgContainer [2020-08-22 19:51:34,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:51:34,680 INFO L168 Benchmark]: Toolchain (without parser) took 12698.74 ms. Allocated memory was 138.4 MB in the beginning and 455.6 MB in the end (delta: 317.2 MB). Free memory was 102.6 MB in the beginning and 397.8 MB in the end (delta: -295.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:51:34,683 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 19:51:34,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 180.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:51:34,692 INFO L168 Benchmark]: Boogie Preprocessor took 42.20 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 177.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:51:34,693 INFO L168 Benchmark]: RCFGBuilder took 562.72 ms. Allocated memory is still 201.3 MB. Free memory was 177.5 MB in the beginning and 143.4 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-08-22 19:51:34,695 INFO L168 Benchmark]: TraceAbstraction took 11684.53 ms. Allocated memory was 201.3 MB in the beginning and 455.6 MB in the end (delta: 254.3 MB). Free memory was 142.7 MB in the beginning and 397.8 MB in the end (delta: -255.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 19:51:34,706 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 180.0 MB in the end (delta: -77.9 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.20 ms. Allocated memory is still 201.3 MB. Free memory was 180.0 MB in the beginning and 177.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 562.72 ms. Allocated memory is still 201.3 MB. Free memory was 177.5 MB in the beginning and 143.4 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11684.53 ms. Allocated memory was 201.3 MB in the beginning and 455.6 MB in the end (delta: 254.3 MB). Free memory was 142.7 MB in the beginning and 397.8 MB in the end (delta: -255.1 MB). There was no memory consumed. 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; [L439] int __retres1 ; [L443] CALL init_model() [L354] m_i = 1 [L355] t1_i = 1 [L443] RET init_model() [L444] CALL start_simulation() [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 [L387] FCALL update_channels() [L388] CALL init_threads() [L151] COND TRUE m_i == 1 [L152] m_st = 0 [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 [L388] RET init_threads() [L389] CALL fire_delta_events() [L240] COND FALSE !(M_E == 0) [L245] COND FALSE !(T1_E == 0) [L250] COND FALSE !(E_1 == 0) [L389] RET fire_delta_events() [L390] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND FALSE !(t1_pc == 1) [L134] __retres1 = 0 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) [L390] RET activate_threads() [L391] CALL reset_delta_events() [L263] COND FALSE !(M_E == 1) [L268] COND FALSE !(T1_E == 1) [L273] COND FALSE !(E_1 == 1) [L391] RET reset_delta_events() [L394] COND TRUE 1 [L397] kernel_st = 1 [L398] CALL eval() [L187] int tmp ; [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [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)) [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 [L221] CALL transmit1() [L72] COND TRUE t1_pc == 0 [L83] COND TRUE 1 [L85] t1_pc = 1 [L86] t1_st = 2 [L221] RET transmit1() [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [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 [L207] CALL master() [L31] COND TRUE m_pc == 0 [L42] COND TRUE 1 [L45] E_1 = 1 [L46] CALL immediate_notify() [L312] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND TRUE t1_pc == 1 [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 [L312] RET activate_threads() [L46] RET immediate_notify() [L47] E_1 = 2 [L50] COND TRUE 1 [L52] m_pc = 1 [L53] m_st = 2 [L207] RET master() [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 [L221] CALL transmit1() [L72] COND FALSE !(t1_pc == 0) [L75] COND TRUE t1_pc == 1 [L91] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1068 SDtfs, 5005 SDslu, 218 SDs, 0 SdLazy, 4071 SolverSat, 1865 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1810occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 1618 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...