/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/token_ring.01.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 19:09:35,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 19:09:35,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 19:09:35,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 19:09:35,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 19:09:35,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 19:09:35,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 19:09:35,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 19:09:35,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 19:09:35,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 19:09:35,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 19:09:35,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 19:09:35,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 19:09:35,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 19:09:35,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 19:09:35,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 19:09:35,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 19:09:35,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 19:09:35,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 19:09:35,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 19:09:35,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 19:09:35,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 19:09:35,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 19:09:35,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 19:09:35,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 19:09:35,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 19:09:35,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 19:09:35,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 19:09:35,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 19:09:35,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 19:09:35,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 19:09:35,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 19:09:35,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 19:09:35,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 19:09:35,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 19:09:35,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 19:09:35,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 19:09:35,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 19:09:35,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 19:09:35,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 19:09:35,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 19:09:35,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 19:09:35,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 19:09:35,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 19:09:35,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 19:09:35,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 19:09:35,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 19:09:35,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 19:09:35,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 19:09:35,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 19:09:35,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 19:09:35,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 19:09:35,493 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 19:09:35,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 19:09:35,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 19:09:35,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 19:09:35,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 19:09:35,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 19:09:35,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 19:09:35,494 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 19:09:35,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 19:09:35,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 19:09:35,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 19:09:35,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 19:09:35,959 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 19:09:35,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-23 19:09:36,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bca9155/3f399ab7df8b4bfb849f0891f4148929/FLAG5cb4ab2aa [2021-02-23 19:09:36,750 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 19:09:36,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c [2021-02-23 19:09:36,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bca9155/3f399ab7df8b4bfb849f0891f4148929/FLAG5cb4ab2aa [2021-02-23 19:09:37,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bca9155/3f399ab7df8b4bfb849f0891f4148929 [2021-02-23 19:09:37,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 19:09:37,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 19:09:37,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 19:09:37,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 19:09:37,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 19:09:37,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b6368f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37, skipping insertion in model container [2021-02-23 19:09:37,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 19:09:37,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 19:09:37,316 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c[366,379] [2021-02-23 19:09:37,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:09:37,392 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 19:09:37,407 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.01.cil-2.c[366,379] [2021-02-23 19:09:37,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 19:09:37,488 INFO L208 MainTranslator]: Completed translation [2021-02-23 19:09:37,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37 WrapperNode [2021-02-23 19:09:37,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 19:09:37,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 19:09:37,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 19:09:37,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 19:09:37,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (1/1) ... [2021-02-23 19:09:37,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 19:09:37,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 19:09:37,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 19:09:37,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 19:09:37,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (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 [2021-02-23 19:09:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 19:09:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 19:09:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 19:09:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-02-23 19:09:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2021-02-23 19:09:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2021-02-23 19:09:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2021-02-23 19:09:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2021-02-23 19:09:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-02-23 19:09:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2021-02-23 19:09:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-02-23 19:09:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-23 19:09:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-02-23 19:09:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-02-23 19:09:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-02-23 19:09:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-02-23 19:09:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2021-02-23 19:09:37,657 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2021-02-23 19:09:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2021-02-23 19:09:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2021-02-23 19:09:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2021-02-23 19:09:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 19:09:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 19:09:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 19:09:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 19:09:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 19:09:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-02-23 19:09:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure master [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2021-02-23 19:09:37,663 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-02-23 19:09:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2021-02-23 19:09:37,664 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-02-23 19:09:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-23 19:09:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-02-23 19:09:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-02-23 19:09:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-02-23 19:09:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2021-02-23 19:09:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2021-02-23 19:09:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2021-02-23 19:09:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2021-02-23 19:09:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2021-02-23 19:09:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 19:09:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 19:09:38,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 19:09:38,412 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-23 19:09:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:09:38 BoogieIcfgContainer [2021-02-23 19:09:38,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 19:09:38,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 19:09:38,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 19:09:38,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 19:09:38,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:09:37" (1/3) ... [2021-02-23 19:09:38,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56d084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:09:38, skipping insertion in model container [2021-02-23 19:09:38,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:09:37" (2/3) ... [2021-02-23 19:09:38,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56d084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:09:38, skipping insertion in model container [2021-02-23 19:09:38,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:09:38" (3/3) ... [2021-02-23 19:09:38,432 INFO L111 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-2.c [2021-02-23 19:09:38,440 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 19:09:38,446 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 19:09:38,470 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 19:09:38,510 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 19:09:38,511 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 19:09:38,511 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 19:09:38,511 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 19:09:38,511 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 19:09:38,511 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 19:09:38,512 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 19:09:38,512 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 19:09:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2021-02-23 19:09:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-02-23 19:09:38,578 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:09:38,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:09:38,581 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:09:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:09:38,592 INFO L82 PathProgramCache]: Analyzing trace with hash -925240097, now seen corresponding path program 1 times [2021-02-23 19:09:38,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:09:38,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905710345] [2021-02-23 19:09:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:09:38,683 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:09:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:39,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:09:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:09:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:09:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:09:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:09:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:09:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:09:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:39,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:39,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:09:39,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905710345] [2021-02-23 19:09:39,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:09:39,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 19:09:39,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443585681] [2021-02-23 19:09:39,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 19:09:39,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:09:39,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 19:09:39,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 19:09:39,425 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 7 states. [2021-02-23 19:09:41,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:09:41,827 INFO L93 Difference]: Finished difference Result 803 states and 1076 transitions. [2021-02-23 19:09:41,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 19:09:41,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-02-23 19:09:41,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:09:41,851 INFO L225 Difference]: With dead ends: 803 [2021-02-23 19:09:41,852 INFO L226 Difference]: Without dead ends: 592 [2021-02-23 19:09:41,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-02-23 19:09:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-02-23 19:09:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 411. [2021-02-23 19:09:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2021-02-23 19:09:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 500 transitions. [2021-02-23 19:09:42,102 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 500 transitions. Word has length 118 [2021-02-23 19:09:42,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:09:42,103 INFO L480 AbstractCegarLoop]: Abstraction has 411 states and 500 transitions. [2021-02-23 19:09:42,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 19:09:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 500 transitions. [2021-02-23 19:09:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-23 19:09:42,110 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:09:42,111 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, 1, 1] [2021-02-23 19:09:42,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 19:09:42,111 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:09:42,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:09:42,112 INFO L82 PathProgramCache]: Analyzing trace with hash -283101501, now seen corresponding path program 1 times [2021-02-23 19:09:42,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:09:42,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477873964] [2021-02-23 19:09:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:09:42,118 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:09:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:09:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:09:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:09:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:09:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:09:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:09:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:09:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:09:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,662 WARN L141 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-02-23 19:09:42,664 WARN L147 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size 14 [2021-02-23 19:09:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:09:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:09:42,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:42,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:09:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:42,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:42,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-23 19:09:42,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [477873964] [2021-02-23 19:09:42,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:09:42,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 19:09:42,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295574324] [2021-02-23 19:09:42,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 19:09:42,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:09:42,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 19:09:42,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-23 19:09:42,834 INFO L87 Difference]: Start difference. First operand 411 states and 500 transitions. Second operand 10 states. [2021-02-23 19:09:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:09:46,253 INFO L93 Difference]: Finished difference Result 1570 states and 2153 transitions. [2021-02-23 19:09:46,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-23 19:09:46,255 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2021-02-23 19:09:46,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:09:46,271 INFO L225 Difference]: With dead ends: 1570 [2021-02-23 19:09:46,271 INFO L226 Difference]: Without dead ends: 1207 [2021-02-23 19:09:46,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2021-02-23 19:09:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-02-23 19:09:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 785. [2021-02-23 19:09:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2021-02-23 19:09:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 993 transitions. [2021-02-23 19:09:46,510 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 993 transitions. Word has length 184 [2021-02-23 19:09:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:09:46,512 INFO L480 AbstractCegarLoop]: Abstraction has 785 states and 993 transitions. [2021-02-23 19:09:46,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 19:09:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 993 transitions. [2021-02-23 19:09:46,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-02-23 19:09:46,519 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:09:46,520 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, 1, 1] [2021-02-23 19:09:46,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 19:09:46,520 INFO L428 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:09:46,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:09:46,521 INFO L82 PathProgramCache]: Analyzing trace with hash -453914013, now seen corresponding path program 1 times [2021-02-23 19:09:46,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:09:46,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213138019] [2021-02-23 19:09:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:09:46,525 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:09:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:46,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:09:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:09:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:09:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:09:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:09:46,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:09:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:09:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:09:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:09:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:09:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:09:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 19:09:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:46,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:46,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-23 19:09:46,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213138019] [2021-02-23 19:09:46,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:09:46,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 19:09:46,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307697033] [2021-02-23 19:09:46,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 19:09:46,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:09:46,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 19:09:46,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 19:09:46,833 INFO L87 Difference]: Start difference. First operand 785 states and 993 transitions. Second operand 9 states. [2021-02-23 19:09:48,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:09:48,971 INFO L93 Difference]: Finished difference Result 1832 states and 2383 transitions. [2021-02-23 19:09:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 19:09:48,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2021-02-23 19:09:48,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:09:48,985 INFO L225 Difference]: With dead ends: 1832 [2021-02-23 19:09:48,985 INFO L226 Difference]: Without dead ends: 1093 [2021-02-23 19:09:48,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-02-23 19:09:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2021-02-23 19:09:49,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 779. [2021-02-23 19:09:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2021-02-23 19:09:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 982 transitions. [2021-02-23 19:09:49,182 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 982 transitions. Word has length 184 [2021-02-23 19:09:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:09:49,182 INFO L480 AbstractCegarLoop]: Abstraction has 779 states and 982 transitions. [2021-02-23 19:09:49,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 19:09:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 982 transitions. [2021-02-23 19:09:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-02-23 19:09:49,187 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:09:49,188 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:09:49,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:09:49,188 INFO L428 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:09:49,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:09:49,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1497123805, now seen corresponding path program 1 times [2021-02-23 19:09:49,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:09:49,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814794075] [2021-02-23 19:09:49,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:09:49,192 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:09:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:49,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:49,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:49,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:09:49,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:09:49,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:09:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:09:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:09:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:09:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:09:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:09:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:09:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:09:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:49,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:09:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-23 19:09:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:49,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:49,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:49,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:09:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-23 19:09:49,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814794075] [2021-02-23 19:09:49,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:09:49,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:09:49,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474033620] [2021-02-23 19:09:49,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:09:49,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:09:49,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:09:49,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:09:49,579 INFO L87 Difference]: Start difference. First operand 779 states and 982 transitions. Second operand 11 states. [2021-02-23 19:09:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:09:56,438 INFO L93 Difference]: Finished difference Result 4526 states and 6148 transitions. [2021-02-23 19:09:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-23 19:09:56,439 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2021-02-23 19:09:56,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:09:56,473 INFO L225 Difference]: With dead ends: 4526 [2021-02-23 19:09:56,473 INFO L226 Difference]: Without dead ends: 3792 [2021-02-23 19:09:56,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=566, Invalid=2296, Unknown=0, NotChecked=0, Total=2862 [2021-02-23 19:09:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2021-02-23 19:09:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3004. [2021-02-23 19:09:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3004 states. [2021-02-23 19:09:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3803 transitions. [2021-02-23 19:09:57,237 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3803 transitions. Word has length 189 [2021-02-23 19:09:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:09:57,238 INFO L480 AbstractCegarLoop]: Abstraction has 3004 states and 3803 transitions. [2021-02-23 19:09:57,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:09:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3803 transitions. [2021-02-23 19:09:57,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-23 19:09:57,248 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:09:57,249 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:09:57,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 19:09:57,249 INFO L428 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:09:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:09:57,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1911718646, now seen corresponding path program 1 times [2021-02-23 19:09:57,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:09:57,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880327784] [2021-02-23 19:09:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:09:57,254 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:09:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:09:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:09:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:09:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:09:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:09:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:09:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:09:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:09:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:09:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:09:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:09:57,541 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-23 19:09:57,542 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-23 19:09:57,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:09:57,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:09:57,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:09:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-23 19:09:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:09:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:09:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:09:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-23 19:09:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-23 19:09:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:09:57,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:57,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:09:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-23 19:09:57,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880327784] [2021-02-23 19:09:57,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:09:57,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:09:57,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060232937] [2021-02-23 19:09:57,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:09:57,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:09:57,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:09:57,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:09:57,730 INFO L87 Difference]: Start difference. First operand 3004 states and 3803 transitions. Second operand 12 states. [2021-02-23 19:10:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:01,001 INFO L93 Difference]: Finished difference Result 6537 states and 8543 transitions. [2021-02-23 19:10:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 19:10:01,005 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 233 [2021-02-23 19:10:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:01,030 INFO L225 Difference]: With dead ends: 6537 [2021-02-23 19:10:01,030 INFO L226 Difference]: Without dead ends: 3268 [2021-02-23 19:10:01,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2021-02-23 19:10:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2021-02-23 19:10:01,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 2458. [2021-02-23 19:10:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2021-02-23 19:10:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3048 transitions. [2021-02-23 19:10:01,651 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3048 transitions. Word has length 233 [2021-02-23 19:10:01,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:01,652 INFO L480 AbstractCegarLoop]: Abstraction has 2458 states and 3048 transitions. [2021-02-23 19:10:01,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:10:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3048 transitions. [2021-02-23 19:10:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-23 19:10:01,658 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:01,659 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:01,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 19:10:01,659 INFO L428 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:01,660 INFO L82 PathProgramCache]: Analyzing trace with hash 759361234, now seen corresponding path program 1 times [2021-02-23 19:10:01,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:01,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450115997] [2021-02-23 19:10:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:01,663 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:10:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:10:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:10:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:10:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:10:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:10:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:10:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-23 19:10:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:01,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:10:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:10:01,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:10:01,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:01,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:10:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:01,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:01,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:02,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:02,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-23 19:10:02,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-02-23 19:10:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:02,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:02,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:02,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450115997] [2021-02-23 19:10:02,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:02,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 19:10:02,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334615091] [2021-02-23 19:10:02,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 19:10:02,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:02,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 19:10:02,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-23 19:10:02,105 INFO L87 Difference]: Start difference. First operand 2458 states and 3048 transitions. Second operand 11 states. [2021-02-23 19:10:06,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:06,394 INFO L93 Difference]: Finished difference Result 7017 states and 9122 transitions. [2021-02-23 19:10:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 19:10:06,394 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 233 [2021-02-23 19:10:06,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:06,426 INFO L225 Difference]: With dead ends: 7017 [2021-02-23 19:10:06,426 INFO L226 Difference]: Without dead ends: 4604 [2021-02-23 19:10:06,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2021-02-23 19:10:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2021-02-23 19:10:07,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 3690. [2021-02-23 19:10:07,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3690 states. [2021-02-23 19:10:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 4490 transitions. [2021-02-23 19:10:07,331 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 4490 transitions. Word has length 233 [2021-02-23 19:10:07,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:07,332 INFO L480 AbstractCegarLoop]: Abstraction has 3690 states and 4490 transitions. [2021-02-23 19:10:07,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 19:10:07,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 4490 transitions. [2021-02-23 19:10:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-23 19:10:07,342 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:07,342 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:07,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 19:10:07,342 INFO L428 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:07,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:07,343 INFO L82 PathProgramCache]: Analyzing trace with hash -209033575, now seen corresponding path program 1 times [2021-02-23 19:10:07,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:07,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569761886] [2021-02-23 19:10:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:07,346 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:07,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:07,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:07,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:10:07,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:10:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:10:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:10:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:10:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:10:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:10:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:10:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-02-23 19:10:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-23 19:10:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:07,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 19:10:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:07,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-02-23 19:10:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:10:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:10:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-02-23 19:10:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:07,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:07,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:07,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569761886] [2021-02-23 19:10:07,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:07,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:10:07,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198838080] [2021-02-23 19:10:07,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:10:07,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:07,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:10:07,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:10:07,835 INFO L87 Difference]: Start difference. First operand 3690 states and 4490 transitions. Second operand 12 states. [2021-02-23 19:10:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:15,501 INFO L93 Difference]: Finished difference Result 7123 states and 8791 transitions. [2021-02-23 19:10:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-23 19:10:15,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 262 [2021-02-23 19:10:15,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:15,530 INFO L225 Difference]: With dead ends: 7123 [2021-02-23 19:10:15,530 INFO L226 Difference]: Without dead ends: 4639 [2021-02-23 19:10:15,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=689, Invalid=3217, Unknown=0, NotChecked=0, Total=3906 [2021-02-23 19:10:15,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2021-02-23 19:10:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 3732. [2021-02-23 19:10:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2021-02-23 19:10:16,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4438 transitions. [2021-02-23 19:10:16,253 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4438 transitions. Word has length 262 [2021-02-23 19:10:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:16,254 INFO L480 AbstractCegarLoop]: Abstraction has 3732 states and 4438 transitions. [2021-02-23 19:10:16,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:10:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4438 transitions. [2021-02-23 19:10:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-23 19:10:16,264 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:16,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:16,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 19:10:16,265 INFO L428 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:16,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1959177767, now seen corresponding path program 1 times [2021-02-23 19:10:16,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:16,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526461329] [2021-02-23 19:10:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:16,268 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:10:16,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:10:16,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:10:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:10:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:10:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:10:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:10:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:10:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-23 19:10:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 19:10:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-23 19:10:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:10:16,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:10:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:10:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:16,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 19:10:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:16,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:16,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:16,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526461329] [2021-02-23 19:10:16,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:16,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-23 19:10:16,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114465835] [2021-02-23 19:10:16,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 19:10:16,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:16,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 19:10:16,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-02-23 19:10:16,749 INFO L87 Difference]: Start difference. First operand 3732 states and 4438 transitions. Second operand 17 states. [2021-02-23 19:10:18,309 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-23 19:10:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:27,210 INFO L93 Difference]: Finished difference Result 8547 states and 10741 transitions. [2021-02-23 19:10:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-02-23 19:10:27,211 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 268 [2021-02-23 19:10:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:27,240 INFO L225 Difference]: With dead ends: 8547 [2021-02-23 19:10:27,241 INFO L226 Difference]: Without dead ends: 4859 [2021-02-23 19:10:27,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3889 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1782, Invalid=8724, Unknown=0, NotChecked=0, Total=10506 [2021-02-23 19:10:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2021-02-23 19:10:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 3740. [2021-02-23 19:10:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2021-02-23 19:10:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4345 transitions. [2021-02-23 19:10:27,936 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4345 transitions. Word has length 268 [2021-02-23 19:10:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:27,936 INFO L480 AbstractCegarLoop]: Abstraction has 3740 states and 4345 transitions. [2021-02-23 19:10:27,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 19:10:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4345 transitions. [2021-02-23 19:10:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-02-23 19:10:27,944 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:27,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:27,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 19:10:27,944 INFO L428 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:27,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1148524118, now seen corresponding path program 1 times [2021-02-23 19:10:27,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:27,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042770752] [2021-02-23 19:10:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:27,948 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:10:28,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 19:10:28,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 19:10:28,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,165 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-23 19:10:28,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:10:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:10:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:10:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:10:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:10:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:10:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-23 19:10:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 19:10:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:10:28,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-23 19:10:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:10:28,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 19:10:28,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:10:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:10:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 19:10:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:28,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:28,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:28,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042770752] [2021-02-23 19:10:28,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:28,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 19:10:28,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841049417] [2021-02-23 19:10:28,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 19:10:28,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:28,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 19:10:28,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-23 19:10:28,544 INFO L87 Difference]: Start difference. First operand 3740 states and 4345 transitions. Second operand 12 states. [2021-02-23 19:10:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:35,462 INFO L93 Difference]: Finished difference Result 10452 states and 12466 transitions. [2021-02-23 19:10:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 19:10:35,464 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 268 [2021-02-23 19:10:35,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:35,510 INFO L225 Difference]: With dead ends: 10452 [2021-02-23 19:10:35,510 INFO L226 Difference]: Without dead ends: 7672 [2021-02-23 19:10:35,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2021-02-23 19:10:35,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2021-02-23 19:10:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6301. [2021-02-23 19:10:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6301 states. [2021-02-23 19:10:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 7426 transitions. [2021-02-23 19:10:36,902 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 7426 transitions. Word has length 268 [2021-02-23 19:10:36,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:36,904 INFO L480 AbstractCegarLoop]: Abstraction has 6301 states and 7426 transitions. [2021-02-23 19:10:36,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 19:10:36,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 7426 transitions. [2021-02-23 19:10:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-02-23 19:10:36,911 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:36,912 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:36,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 19:10:36,912 INFO L428 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1399302786, now seen corresponding path program 1 times [2021-02-23 19:10:36,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:36,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182627349] [2021-02-23 19:10:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:36,917 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:36,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:36,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:36,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:36,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:10:36,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:36,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-02-23 19:10:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 19:10:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 19:10:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 19:10:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-23 19:10:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 19:10:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 19:10:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 19:10:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-02-23 19:10:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 19:10:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-02-23 19:10:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-02-23 19:10:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-02-23 19:10:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 19:10:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:10:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 19:10:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 19:10:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-02-23 19:10:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:10:37,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:37,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:10:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 19:10:37,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182627349] [2021-02-23 19:10:37,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:10:37,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 19:10:37,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822565769] [2021-02-23 19:10:37,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 19:10:37,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:10:37,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 19:10:37,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-23 19:10:37,277 INFO L87 Difference]: Start difference. First operand 6301 states and 7426 transitions. Second operand 9 states. [2021-02-23 19:10:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:10:41,049 INFO L93 Difference]: Finished difference Result 11985 states and 14311 transitions. [2021-02-23 19:10:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 19:10:41,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 272 [2021-02-23 19:10:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:10:41,089 INFO L225 Difference]: With dead ends: 11985 [2021-02-23 19:10:41,090 INFO L226 Difference]: Without dead ends: 7490 [2021-02-23 19:10:41,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-02-23 19:10:41,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2021-02-23 19:10:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 6363. [2021-02-23 19:10:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6363 states. [2021-02-23 19:10:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 7508 transitions. [2021-02-23 19:10:42,316 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 7508 transitions. Word has length 272 [2021-02-23 19:10:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:10:42,317 INFO L480 AbstractCegarLoop]: Abstraction has 6363 states and 7508 transitions. [2021-02-23 19:10:42,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 19:10:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 7508 transitions. [2021-02-23 19:10:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-02-23 19:10:42,324 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:10:42,325 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:10:42,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 19:10:42,325 INFO L428 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:10:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:10:42,326 INFO L82 PathProgramCache]: Analyzing trace with hash 800512033, now seen corresponding path program 1 times [2021-02-23 19:10:42,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:10:42,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941741623] [2021-02-23 19:10:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:10:42,329 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 19:10:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:10:42,352 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:10:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 19:10:42,377 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 19:10:42,507 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 19:10:42,507 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 19:10:42,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 19:10:42,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:10:42 BoogieIcfgContainer [2021-02-23 19:10:42,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 19:10:42,544 INFO L168 Benchmark]: Toolchain (without parser) took 65442.99 ms. Allocated memory was 173.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 149.4 MB in the beginning and 1.1 GB in the end (delta: -915.9 MB). Peak memory consumption was 386.0 MB. Max. memory is 8.0 GB. [2021-02-23 19:10:42,545 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 173.0 MB. Free memory is still 146.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 19:10:42,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.09 ms. Allocated memory is still 173.0 MB. Free memory was 148.2 MB in the beginning and 135.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 19:10:42,545 INFO L168 Benchmark]: Boogie Preprocessor took 54.87 ms. Allocated memory is still 173.0 MB. Free memory was 135.4 MB in the beginning and 133.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 19:10:42,545 INFO L168 Benchmark]: RCFGBuilder took 872.44 ms. Allocated memory is still 173.0 MB. Free memory was 133.3 MB in the beginning and 125.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-02-23 19:10:42,545 INFO L168 Benchmark]: TraceAbstraction took 64124.09 ms. Allocated memory was 173.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 125.6 MB in the beginning and 1.1 GB in the end (delta: -939.6 MB). Peak memory consumption was 362.7 MB. Max. memory is 8.0 GB. [2021-02-23 19:10:42,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 173.0 MB. Free memory is still 146.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 373.09 ms. Allocated memory is still 173.0 MB. Free memory was 148.2 MB in the beginning and 135.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 54.87 ms. Allocated memory is still 173.0 MB. Free memory was 135.4 MB in the beginning and 133.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 872.44 ms. Allocated memory is still 173.0 MB. Free memory was 133.3 MB in the beginning and 125.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 64124.09 ms. Allocated memory was 173.0 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 125.6 MB in the beginning and 1.1 GB in the end (delta: -939.6 MB). Peak memory consumption was 362.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int m_pc = 0; [L17] int t1_pc = 0; [L18] int m_st ; [L19] int t1_st ; [L20] int m_i ; [L21] int t1_i ; [L22] int M_E = 2; [L23] int T1_E = 2; [L24] int E_M = 2; [L25] int E_1 = 2; [L29] int token ; [L31] int local ; [L477] int __retres1 ; [L481] CALL init_model() [L392] m_i = 1 [L393] t1_i = 1 [L481] RET init_model() [L482] CALL start_simulation() [L418] int kernel_st ; [L419] int tmp ; [L420] int tmp___0 ; [L424] kernel_st = 0 [L425] FCALL update_channels() [L426] CALL init_threads() [L174] COND TRUE m_i == 1 [L175] m_st = 0 [L179] COND TRUE t1_i == 1 [L180] t1_st = 0 [L426] RET init_threads() [L427] CALL fire_delta_events() [L263] COND FALSE !(M_E == 0) [L268] COND FALSE !(T1_E == 0) [L273] COND FALSE !(E_M == 0) [L278] COND FALSE !(E_1 == 0) [L427] RET fire_delta_events() [L428] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND FALSE !(t1_pc == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L428] RET activate_threads() [L429] CALL reset_delta_events() [L291] COND FALSE !(M_E == 1) [L296] COND FALSE !(T1_E == 1) [L301] COND FALSE !(E_M == 1) [L306] COND FALSE !(E_1 == 1) [L429] RET reset_delta_events() [L432] COND TRUE 1 [L435] kernel_st = 1 [L436] CALL eval() [L210] int tmp ; [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND FALSE !(\read(tmp_ndt_1)) [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND TRUE t1_pc == 0 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND TRUE m_pc == 0 [L47] COND TRUE 1 [L50] token = __VERIFIER_nondet_int() [L51] local = token [L52] E_1 = 1 [L53] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND FALSE !(m_pc == 1) [L138] __retres1 = 0 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND FALSE !(\read(tmp)) [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND TRUE E_1 == 1 [L149] __retres1 = 1 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND TRUE \read(tmp___0) [L332] t1_st = 0 [L345] RET activate_threads() [L53] RET immediate_notify() [L54] E_1 = 2 [L55] m_pc = 1 [L56] m_st = 2 [L230] RET master() [L238] COND TRUE t1_st == 0 [L239] int tmp_ndt_2; [L240] tmp_ndt_2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp_ndt_2) [L243] t1_st = 1 [L244] CALL transmit1() [L92] COND FALSE !(t1_pc == 0) [L95] COND TRUE t1_pc == 1 [L111] token += 1 [L112] E_M = 1 [L113] CALL immediate_notify() [L345] CALL activate_threads() [L316] int tmp ; [L317] int tmp___0 ; [L321] CALL, EXPR is_master_triggered() [L125] int __retres1 ; [L128] COND TRUE m_pc == 1 [L129] COND TRUE E_M == 1 [L130] __retres1 = 1 [L140] return (__retres1); [L321] RET, EXPR is_master_triggered() [L321] tmp = is_master_triggered() [L323] COND TRUE \read(tmp) [L324] m_st = 0 [L329] CALL, EXPR is_transmit1_triggered() [L144] int __retres1 ; [L147] COND TRUE t1_pc == 1 [L148] COND FALSE !(E_1 == 1) [L157] __retres1 = 0 [L159] return (__retres1); [L329] RET, EXPR is_transmit1_triggered() [L329] tmp___0 = is_transmit1_triggered() [L331] COND FALSE !(\read(tmp___0)) [L345] RET activate_threads() [L113] RET immediate_notify() [L114] E_M = 2 [L103] COND TRUE 1 [L105] t1_pc = 1 [L106] t1_st = 2 [L244] RET transmit1() [L214] COND TRUE 1 [L217] CALL, EXPR exists_runnable_thread() [L189] int __retres1 ; [L192] COND TRUE m_st == 0 [L193] __retres1 = 1 [L205] return (__retres1); [L217] RET, EXPR exists_runnable_thread() [L217] tmp = exists_runnable_thread() [L219] COND TRUE \read(tmp) [L224] COND TRUE m_st == 0 [L225] int tmp_ndt_1; [L226] tmp_ndt_1 = __VERIFIER_nondet_int() [L227] COND TRUE \read(tmp_ndt_1) [L229] m_st = 1 [L230] CALL master() [L34] int tmp_var = __VERIFIER_nondet_int(); [L36] COND FALSE !(m_pc == 0) [L39] COND TRUE m_pc == 1 [L61] COND FALSE !(token != local + 1) [L66] COND TRUE tmp_var <= 5 [L67] COND TRUE tmp_var >= 5 [L72] COND TRUE tmp_var <= 5 [L73] COND TRUE tmp_var >= 5 [L74] COND TRUE tmp_var == 5 [L75] CALL error() [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 239 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 64.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 51.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3275 SDtfs, 17720 SDslu, 1400 SDs, 0 SdLazy, 21026 SolverSat, 6343 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 929 GetRequests, 536 SyntacticMatches, 2 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7214 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6363occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 7953 StatesRemovedByMinimization, 10 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...