/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 0.1.25-3af5e1f [2020-09-04 17:59:02,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:59:02,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:59:02,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:59:02,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:59:02,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:59:02,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:59:02,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:59:02,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:59:02,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:59:02,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:59:02,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:59:02,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:59:02,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:59:02,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:59:02,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:59:02,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:59:02,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:59:02,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:59:02,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:59:02,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:59:02,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:59:02,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:59:02,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:59:02,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:59:02,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:59:02,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:59:02,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:59:02,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:59:02,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:59:02,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:59:02,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:59:02,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:59:02,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:59:02,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:59:02,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:59:02,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:59:02,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:59:02,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:59:02,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:59:02,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:59:02,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:59:02,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:59:02,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:59:02,876 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:59:02,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:59:02,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:59:02,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:59:02,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:59:02,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:59:02,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:59:02,879 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:59:03,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:59:03,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:59:03,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:59:03,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:59:03,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:59:03,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-04 17:59:03,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af7ed0394/097875eb990e41acbed849b8691a8260/FLAG69435dd60 [2020-09-04 17:59:03,948 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:59:03,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-04 17:59:03,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af7ed0394/097875eb990e41acbed849b8691a8260/FLAG69435dd60 [2020-09-04 17:59:04,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af7ed0394/097875eb990e41acbed849b8691a8260 [2020-09-04 17:59:04,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:59:04,302 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:59:04,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:59:04,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:59:04,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:59:04,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35de7d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04, skipping insertion in model container [2020-09-04 17:59:04,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:59:04,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:59:04,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:59:04,669 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:59:04,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:59:04,810 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:59:04,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04 WrapperNode [2020-09-04 17:59:04,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:59:04,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:59:04,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:59:04,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:59:04,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... [2020-09-04 17:59:04,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:59:04,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:59:04,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:59:04,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:59:04,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:59:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:59:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:59:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-04 17:59:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-04 17:59:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-04 17:59:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-04 17:59:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-04 17:59:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-04 17:59:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-04 17:59:04,946 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-04 17:59:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-04 17:59:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-04 17:59:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-04 17:59:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-04 17:59:04,947 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-04 17:59:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-04 17:59:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-04 17:59:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-04 17:59:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-04 17:59:04,948 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-04 17:59:04,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:59:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:59:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:59:04,949 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-04 17:59:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-04 17:59:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-04 17:59:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-04 17:59:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-04 17:59:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-04 17:59:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-04 17:59:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-04 17:59:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-04 17:59:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-04 17:59:04,953 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-04 17:59:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-04 17:59:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-04 17:59:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-04 17:59:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-04 17:59:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-04 17:59:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-04 17:59:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-04 17:59:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:59:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:59:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:59:05,518 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:59:05,518 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 17:59:05,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:59:05 BoogieIcfgContainer [2020-09-04 17:59:05,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:59:05,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:59:05,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:59:05,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:59:05,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:59:04" (1/3) ... [2020-09-04 17:59:05,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273cfb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:59:05, skipping insertion in model container [2020-09-04 17:59:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:59:04" (2/3) ... [2020-09-04 17:59:05,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273cfb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:59:05, skipping insertion in model container [2020-09-04 17:59:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:59:05" (3/3) ... [2020-09-04 17:59:05,536 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-09-04 17:59:05,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:59:05,559 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:59:05,581 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:59:05,611 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:59:05,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:59:05,611 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:59:05,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:59:05,612 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:59:05,612 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:59:05,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:59:05,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:59:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-04 17:59:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-04 17:59:05,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:05,658 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] [2020-09-04 17:59:05,659 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:05,667 INFO L82 PathProgramCache]: Analyzing trace with hash 486796623, now seen corresponding path program 1 times [2020-09-04 17:59:05,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:05,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036300581] [2020-09-04 17:59:05,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:05,747 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 17:59:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 17:59:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 17:59:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:59:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 17:59:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-04 17:59:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 17:59:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:06,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036300581] [2020-09-04 17:59:06,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:06,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:59:06,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174410132] [2020-09-04 17:59:06,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:59:06,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:06,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:59:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:59:06,229 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 7 states. [2020-09-04 17:59:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:08,260 INFO L93 Difference]: Finished difference Result 708 states and 984 transitions. [2020-09-04 17:59:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 17:59:08,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-09-04 17:59:08,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:08,287 INFO L225 Difference]: With dead ends: 708 [2020-09-04 17:59:08,287 INFO L226 Difference]: Without dead ends: 516 [2020-09-04 17:59:08,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-09-04 17:59:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-04 17:59:08,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 347. [2020-09-04 17:59:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-04 17:59:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 433 transitions. [2020-09-04 17:59:08,444 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 433 transitions. Word has length 102 [2020-09-04 17:59:08,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:08,446 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 433 transitions. [2020-09-04 17:59:08,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:59:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 433 transitions. [2020-09-04 17:59:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-04 17:59:08,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:08,452 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] [2020-09-04 17:59:08,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:59:08,453 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:08,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:08,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2043764254, now seen corresponding path program 1 times [2020-09-04 17:59:08,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:08,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927342749] [2020-09-04 17:59:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:08,457 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 17:59:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 17:59:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 17:59:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:59:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 17:59:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-04 17:59:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 17:59:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:08,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927342749] [2020-09-04 17:59:08,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:08,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:59:08,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790783117] [2020-09-04 17:59:08,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:59:08,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:08,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:59:08,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:59:08,654 INFO L87 Difference]: Start difference. First operand 347 states and 433 transitions. Second operand 8 states. [2020-09-04 17:59:09,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:09,927 INFO L93 Difference]: Finished difference Result 815 states and 1061 transitions. [2020-09-04 17:59:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 17:59:09,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-09-04 17:59:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:09,941 INFO L225 Difference]: With dead ends: 815 [2020-09-04 17:59:09,941 INFO L226 Difference]: Without dead ends: 503 [2020-09-04 17:59:09,946 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 [2020-09-04 17:59:09,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-04 17:59:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 338. [2020-09-04 17:59:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-04 17:59:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 418 transitions. [2020-09-04 17:59:10,016 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 418 transitions. Word has length 103 [2020-09-04 17:59:10,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:10,016 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 418 transitions. [2020-09-04 17:59:10,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:59:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 418 transitions. [2020-09-04 17:59:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-04 17:59:10,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:10,019 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] [2020-09-04 17:59:10,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:59:10,020 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:10,020 INFO L82 PathProgramCache]: Analyzing trace with hash -891577735, now seen corresponding path program 1 times [2020-09-04 17:59:10,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:10,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322111104] [2020-09-04 17:59:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:10,023 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 17:59:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 17:59:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 17:59:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:59:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 17:59:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-04 17:59:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 17:59:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:10,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322111104] [2020-09-04 17:59:10,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:10,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:59:10,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771267857] [2020-09-04 17:59:10,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:59:10,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:10,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:59:10,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:59:10,286 INFO L87 Difference]: Start difference. First operand 338 states and 418 transitions. Second operand 7 states. [2020-09-04 17:59:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:11,941 INFO L93 Difference]: Finished difference Result 1254 states and 1740 transitions. [2020-09-04 17:59:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 17:59:11,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-09-04 17:59:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:11,950 INFO L225 Difference]: With dead ends: 1254 [2020-09-04 17:59:11,950 INFO L226 Difference]: Without dead ends: 951 [2020-09-04 17:59:11,953 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 [2020-09-04 17:59:11,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2020-09-04 17:59:12,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 685. [2020-09-04 17:59:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-09-04 17:59:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 880 transitions. [2020-09-04 17:59:12,067 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 880 transitions. Word has length 107 [2020-09-04 17:59:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:12,071 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 880 transitions. [2020-09-04 17:59:12,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:59:12,071 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 880 transitions. [2020-09-04 17:59:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-04 17:59:12,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:12,078 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] [2020-09-04 17:59:12,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:59:12,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:12,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:12,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1602138582, now seen corresponding path program 1 times [2020-09-04 17:59:12,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:12,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837551897] [2020-09-04 17:59:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:12,120 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 17:59:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 17:59:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 17:59:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:59:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 17:59:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-04 17:59:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 17:59:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 17:59:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-04 17:59:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:12,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837551897] [2020-09-04 17:59:12,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:12,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:59:12,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526209997] [2020-09-04 17:59:12,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:59:12,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:12,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:59:12,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:59:12,351 INFO L87 Difference]: Start difference. First operand 685 states and 880 transitions. Second operand 8 states. [2020-09-04 17:59:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:14,605 INFO L93 Difference]: Finished difference Result 2592 states and 3797 transitions. [2020-09-04 17:59:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 17:59:14,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-09-04 17:59:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:14,627 INFO L225 Difference]: With dead ends: 2592 [2020-09-04 17:59:14,627 INFO L226 Difference]: Without dead ends: 1943 [2020-09-04 17:59:14,635 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 [2020-09-04 17:59:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2020-09-04 17:59:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1454. [2020-09-04 17:59:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states. [2020-09-04 17:59:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1985 transitions. [2020-09-04 17:59:14,911 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1985 transitions. Word has length 139 [2020-09-04 17:59:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:14,913 INFO L479 AbstractCegarLoop]: Abstraction has 1454 states and 1985 transitions. [2020-09-04 17:59:14,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:59:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1985 transitions. [2020-09-04 17:59:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-04 17:59:14,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:14,923 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] [2020-09-04 17:59:14,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 17:59:14,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:14,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:14,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1051815898, now seen corresponding path program 1 times [2020-09-04 17:59:14,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:14,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351558433] [2020-09-04 17:59:14,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:14,932 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 17:59:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 17:59:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-04 17:59:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:59:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 17:59:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-04 17:59:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 17:59:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-04 17:59:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-04 17:59:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 17:59:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 17:59:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:59:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 17:59:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-04 17:59:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:59:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:59:15,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351558433] [2020-09-04 17:59:15,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:59:15,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 17:59:15,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128392192] [2020-09-04 17:59:15,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 17:59:15,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:59:15,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 17:59:15,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:59:15,209 INFO L87 Difference]: Start difference. First operand 1454 states and 1985 transitions. Second operand 10 states. [2020-09-04 17:59:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:59:17,461 INFO L93 Difference]: Finished difference Result 3752 states and 5602 transitions. [2020-09-04 17:59:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-04 17:59:17,462 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2020-09-04 17:59:17,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:59:17,487 INFO L225 Difference]: With dead ends: 3752 [2020-09-04 17:59:17,488 INFO L226 Difference]: Without dead ends: 2339 [2020-09-04 17:59:17,500 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 [2020-09-04 17:59:17,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2020-09-04 17:59:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 1810. [2020-09-04 17:59:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1810 states. [2020-09-04 17:59:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2415 transitions. [2020-09-04 17:59:17,831 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2415 transitions. Word has length 182 [2020-09-04 17:59:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:59:17,832 INFO L479 AbstractCegarLoop]: Abstraction has 1810 states and 2415 transitions. [2020-09-04 17:59:17,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 17:59:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2415 transitions. [2020-09-04 17:59:17,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-04 17:59:17,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:59:17,839 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] [2020-09-04 17:59:17,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 17:59:17,840 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:59:17,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:59:17,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1421271293, now seen corresponding path program 1 times [2020-09-04 17:59:17,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:59:17,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058895885] [2020-09-04 17:59:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:59:17,845 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:59:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:59:17,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:59:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:59:17,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:59:17,984 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 17:59:17,984 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 17:59:17,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 17:59:18,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:59:18 BoogieIcfgContainer [2020-09-04 17:59:18,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:59:18,041 INFO L168 Benchmark]: Toolchain (without parser) took 13738.57 ms. Allocated memory was 137.9 MB in the beginning and 431.0 MB in the end (delta: 293.1 MB). Free memory was 102.3 MB in the beginning and 197.3 MB in the end (delta: -95.0 MB). Peak memory consumption was 198.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,042 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.94 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 180.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,044 INFO L168 Benchmark]: Boogie Preprocessor took 48.59 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,045 INFO L168 Benchmark]: RCFGBuilder took 665.98 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 143.7 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,046 INFO L168 Benchmark]: TraceAbstraction took 12510.39 ms. Allocated memory was 201.9 MB in the beginning and 431.0 MB in the end (delta: 229.1 MB). Free memory was 143.0 MB in the beginning and 197.3 MB in the end (delta: -54.3 MB). Peak memory consumption was 174.8 MB. Max. memory is 7.1 GB. [2020-09-04 17:59:18,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 502.94 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 180.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.59 ms. Allocated memory is still 201.9 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 665.98 ms. Allocated memory is still 201.9 MB. Free memory was 178.0 MB in the beginning and 143.7 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12510.39 ms. Allocated memory was 201.9 MB in the beginning and 431.0 MB in the end (delta: 229.1 MB). Free memory was 143.0 MB in the beginning and 197.3 MB in the end (delta: -54.3 MB). Peak memory consumption was 174.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; [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: 12.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1080 SDtfs, 4995 SDslu, 218 SDs, 0 SdLazy, 4080 SolverSat, 1864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s 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...