/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 06:41:06,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 06:41:06,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 06:41:06,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 06:41:06,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 06:41:06,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 06:41:06,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 06:41:06,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 06:41:06,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 06:41:06,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 06:41:06,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 06:41:06,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 06:41:06,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 06:41:06,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 06:41:06,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 06:41:06,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 06:41:06,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 06:41:06,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 06:41:06,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 06:41:06,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 06:41:06,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 06:41:06,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 06:41:06,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 06:41:06,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 06:41:06,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 06:41:06,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 06:41:06,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 06:41:06,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 06:41:06,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 06:41:06,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 06:41:06,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 06:41:06,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 06:41:06,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 06:41:06,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 06:41:06,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 06:41:06,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 06:41:06,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 06:41:06,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 06:41:06,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 06:41:06,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 06:41:06,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 06:41:06,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 06:41:06,539 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 06:41:06,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 06:41:06,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 06:41:06,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 06:41:06,543 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 06:41:06,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 06:41:06,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 06:41:06,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 06:41:06,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 06:41:06,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 06:41:06,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 06:41:06,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 06:41:06,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 06:41:06,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 06:41:06,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 06:41:06,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 06:41:06,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 06:41:06,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 06:41:06,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 06:41:06,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 06:41:06,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 06:41:06,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 06:41:06,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 06:41:06,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 06:41:06,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 06:41:06,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 06:41:06,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 06:41:06,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 06:41:06,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 06:41:06,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 06:41:06,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 06:41:06,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 06:41:06,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 06:41:06,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 06:41:06,976 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 06:41:06,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-27 06:41:07,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d0e5dc53/a9992464fc0a4be9a74ab556a3e184a7/FLAG3fe9306ba [2020-10-27 06:41:07,730 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 06:41:07,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-10-27 06:41:07,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d0e5dc53/a9992464fc0a4be9a74ab556a3e184a7/FLAG3fe9306ba [2020-10-27 06:41:08,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d0e5dc53/a9992464fc0a4be9a74ab556a3e184a7 [2020-10-27 06:41:08,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 06:41:08,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 06:41:08,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 06:41:08,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 06:41:08,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 06:41:08,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfc022e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08, skipping insertion in model container [2020-10-27 06:41:08,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 06:41:08,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 06:41:08,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:41:08,416 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 06:41:08,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:41:08,480 INFO L208 MainTranslator]: Completed translation [2020-10-27 06:41:08,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08 WrapperNode [2020-10-27 06:41:08,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 06:41:08,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 06:41:08,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 06:41:08,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 06:41:08,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... [2020-10-27 06:41:08,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 06:41:08,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 06:41:08,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 06:41:08,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 06:41:08,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 06:41:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 06:41:08,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-10-27 06:41:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-10-27 06:41:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-10-27 06:41:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-10-27 06:41:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 06:41:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 06:41:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 06:41:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 06:41:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 06:41:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-10-27 06:41:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-10-27 06:41:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 06:41:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 06:41:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 06:41:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 06:41:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 06:41:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 06:41:09,388 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 06:41:09,388 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 06:41:09,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:09 BoogieIcfgContainer [2020-10-27 06:41:09,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 06:41:09,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 06:41:09,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 06:41:09,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 06:41:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:41:08" (1/3) ... [2020-10-27 06:41:09,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f41cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:09, skipping insertion in model container [2020-10-27 06:41:09,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:41:08" (2/3) ... [2020-10-27 06:41:09,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f41cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:41:09, skipping insertion in model container [2020-10-27 06:41:09,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:41:09" (3/3) ... [2020-10-27 06:41:09,404 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-10-27 06:41:09,418 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 06:41:09,425 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 06:41:09,444 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 06:41:09,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 06:41:09,483 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 06:41:09,483 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 06:41:09,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 06:41:09,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 06:41:09,484 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 06:41:09,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 06:41:09,485 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 06:41:09,515 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-27 06:41:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 06:41:09,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:09,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:09,528 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:09,535 INFO L82 PathProgramCache]: Analyzing trace with hash -154404590, now seen corresponding path program 1 times [2020-10-27 06:41:09,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:09,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080762935] [2020-10-27 06:41:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:09,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:09,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:10,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:10,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:10,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:11,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:11,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 06:41:14,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:41:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 06:41:14,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:41:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:41:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 06:41:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 06:41:14,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:14,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:14,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 06:41:14,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:14,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:14,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:14,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:14,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:14,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:14,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:14,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:14,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:14,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:14,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:14,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:14,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:14,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:14,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:14,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:14,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:15,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:15,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 06:41:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 06:41:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 06:41:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:15,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:15,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:15,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:15,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:15,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:15,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:15,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:15,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:15,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:15,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 06:41:15,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:15,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:15,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:15,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:15,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:15,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:41:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:15,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:15,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:15,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:15,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:15,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:15,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:15,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:41:15,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080762935] [2020-10-27 06:41:15,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:15,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 06:41:15,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433981576] [2020-10-27 06:41:15,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 06:41:15,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:15,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 06:41:15,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 06:41:15,250 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 8 states. [2020-10-27 06:41:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:17,491 INFO L93 Difference]: Finished difference Result 477 states and 708 transitions. [2020-10-27 06:41:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 06:41:17,493 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-27 06:41:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:17,510 INFO L225 Difference]: With dead ends: 477 [2020-10-27 06:41:17,510 INFO L226 Difference]: Without dead ends: 335 [2020-10-27 06:41:17,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-10-27 06:41:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-10-27 06:41:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 246. [2020-10-27 06:41:17,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-27 06:41:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 321 transitions. [2020-10-27 06:41:17,617 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 321 transitions. Word has length 76 [2020-10-27 06:41:17,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:17,618 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 321 transitions. [2020-10-27 06:41:17,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 06:41:17,618 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 321 transitions. [2020-10-27 06:41:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 06:41:17,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:17,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:17,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 06:41:17,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:17,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:17,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1462409359, now seen corresponding path program 1 times [2020-10-27 06:41:17,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:17,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200780845] [2020-10-27 06:41:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:17,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:17,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:17,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:18,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:18,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 06:41:22,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:41:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 06:41:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:41:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:41:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 06:41:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:22,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:22,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 06:41:22,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:22,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:22,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:22,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:22,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:22,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:22,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:22,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:22,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:22,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:22,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:22,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:22,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:22,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:22,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:41:22,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:41:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 06:41:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:22,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:22,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:22,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:22,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:22,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:41:22,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 06:41:22,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 06:41:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 06:41:22,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:22,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:23,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:23,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:23,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:23,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:23,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:23,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:23,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:23,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:23,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:23,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:23,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:23,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:23,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:41:23,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:23,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:23,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:23,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:23,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:23,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:23,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:23,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:23,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:23,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:23,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:23,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:23,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:23,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:23,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:41:23,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200780845] [2020-10-27 06:41:23,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:23,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 06:41:23,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843847438] [2020-10-27 06:41:23,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 06:41:23,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:23,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 06:41:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-27 06:41:23,104 INFO L87 Difference]: Start difference. First operand 246 states and 321 transitions. Second operand 14 states. [2020-10-27 06:41:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:25,089 INFO L93 Difference]: Finished difference Result 570 states and 810 transitions. [2020-10-27 06:41:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 06:41:25,090 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 76 [2020-10-27 06:41:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:25,095 INFO L225 Difference]: With dead ends: 570 [2020-10-27 06:41:25,095 INFO L226 Difference]: Without dead ends: 343 [2020-10-27 06:41:25,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-10-27 06:41:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-27 06:41:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 256. [2020-10-27 06:41:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-27 06:41:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 325 transitions. [2020-10-27 06:41:25,170 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 325 transitions. Word has length 76 [2020-10-27 06:41:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:25,170 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 325 transitions. [2020-10-27 06:41:25,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 06:41:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 325 transitions. [2020-10-27 06:41:25,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 06:41:25,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:25,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:25,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 06:41:25,174 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:25,174 INFO L82 PathProgramCache]: Analyzing trace with hash 177249135, now seen corresponding path program 1 times [2020-10-27 06:41:25,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:25,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438951910] [2020-10-27 06:41:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:25,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:25,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:25,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:25,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:26,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:41:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 06:41:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:30,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 06:41:30,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:30,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:30,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:30,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 06:41:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:30,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:30,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 06:41:30,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:30,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:30,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:30,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:30,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:30,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:30,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:41:30,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438951910] [2020-10-27 06:41:30,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:30,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 06:41:30,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899882578] [2020-10-27 06:41:30,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 06:41:30,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:30,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 06:41:30,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 06:41:30,408 INFO L87 Difference]: Start difference. First operand 256 states and 325 transitions. Second operand 8 states. [2020-10-27 06:41:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:32,094 INFO L93 Difference]: Finished difference Result 850 states and 1132 transitions. [2020-10-27 06:41:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 06:41:32,095 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-27 06:41:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:32,101 INFO L225 Difference]: With dead ends: 850 [2020-10-27 06:41:32,101 INFO L226 Difference]: Without dead ends: 613 [2020-10-27 06:41:32,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 06:41:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-10-27 06:41:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 481. [2020-10-27 06:41:32,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-27 06:41:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 610 transitions. [2020-10-27 06:41:32,177 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 610 transitions. Word has length 76 [2020-10-27 06:41:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:32,178 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 610 transitions. [2020-10-27 06:41:32,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 06:41:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 610 transitions. [2020-10-27 06:41:32,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 06:41:32,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:32,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:32,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 06:41:32,181 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:32,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:32,182 INFO L82 PathProgramCache]: Analyzing trace with hash -807704717, now seen corresponding path program 1 times [2020-10-27 06:41:32,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:32,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220702268] [2020-10-27 06:41:32,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:32,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:32,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:33,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:36,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4623 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 06:41:36,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:36,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:36,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:36,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 06:41:36,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:36,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:36,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:36,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:36,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:36,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:36,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:36,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:36,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:36,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 06:41:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:37,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:37,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:37,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:37,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:37,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:37,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:37,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 06:41:37,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220702268] [2020-10-27 06:41:37,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:37,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 06:41:37,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798065990] [2020-10-27 06:41:37,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 06:41:37,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:37,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 06:41:37,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 06:41:37,088 INFO L87 Difference]: Start difference. First operand 481 states and 610 transitions. Second operand 7 states. [2020-10-27 06:41:38,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:38,562 INFO L93 Difference]: Finished difference Result 1572 states and 2106 transitions. [2020-10-27 06:41:38,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 06:41:38,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-27 06:41:38,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:38,575 INFO L225 Difference]: With dead ends: 1572 [2020-10-27 06:41:38,575 INFO L226 Difference]: Without dead ends: 1111 [2020-10-27 06:41:38,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-27 06:41:38,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2020-10-27 06:41:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 933. [2020-10-27 06:41:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-10-27 06:41:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1201 transitions. [2020-10-27 06:41:38,716 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1201 transitions. Word has length 76 [2020-10-27 06:41:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:38,717 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1201 transitions. [2020-10-27 06:41:38,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 06:41:38,717 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1201 transitions. [2020-10-27 06:41:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 06:41:38,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:38,726 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 06:41:38,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 06:41:38,727 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:38,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1223005366, now seen corresponding path program 1 times [2020-10-27 06:41:38,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:38,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770863452] [2020-10-27 06:41:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:38,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:38,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:38,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:39,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 06:41:41,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 06:41:41,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2940 [2020-10-27 06:41:41,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 06:41:41,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 06:41:41,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 06:41:41,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:41,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 06:41:41,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:41,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 06:41:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:41,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 06:41:41,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:41:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 06:41:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 06:41:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:41,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:41,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:41:41,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 06:41:41,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 06:41:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 06:41:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:41,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:41,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:41,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:41,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:41,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:41,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-27 06:41:41,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770863452] [2020-10-27 06:41:41,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:41,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 06:41:41,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800889984] [2020-10-27 06:41:41,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 06:41:41,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:41,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 06:41:41,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 06:41:41,998 INFO L87 Difference]: Start difference. First operand 933 states and 1201 transitions. Second operand 11 states. [2020-10-27 06:41:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:43,793 INFO L93 Difference]: Finished difference Result 2411 states and 3155 transitions. [2020-10-27 06:41:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 06:41:43,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 94 [2020-10-27 06:41:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:43,808 INFO L225 Difference]: With dead ends: 2411 [2020-10-27 06:41:43,808 INFO L226 Difference]: Without dead ends: 1497 [2020-10-27 06:41:43,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2020-10-27 06:41:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2020-10-27 06:41:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1161. [2020-10-27 06:41:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-10-27 06:41:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1440 transitions. [2020-10-27 06:41:43,960 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1440 transitions. Word has length 94 [2020-10-27 06:41:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:43,961 INFO L481 AbstractCegarLoop]: Abstraction has 1161 states and 1440 transitions. [2020-10-27 06:41:43,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 06:41:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1440 transitions. [2020-10-27 06:41:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 06:41:43,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:43,963 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 06:41:43,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 06:41:43,964 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash 325612088, now seen corresponding path program 1 times [2020-10-27 06:41:43,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:43,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320261831] [2020-10-27 06:41:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:43,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:43,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 06:41:44,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 06:41:44,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:44,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:44,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:44,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:44,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 06:41:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 06:41:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 06:41:44,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:44,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:44,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:44,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 06:41:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:44,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:44,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:44,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:44,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:44,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:44,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 06:41:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 06:41:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:44,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:44,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-27 06:41:44,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320261831] [2020-10-27 06:41:44,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:44,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:41:44,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37813548] [2020-10-27 06:41:44,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:41:44,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:44,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:41:44,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:41:44,692 INFO L87 Difference]: Start difference. First operand 1161 states and 1440 transitions. Second operand 9 states. [2020-10-27 06:41:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:45,918 INFO L93 Difference]: Finished difference Result 2511 states and 3146 transitions. [2020-10-27 06:41:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 06:41:45,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-27 06:41:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:45,929 INFO L225 Difference]: With dead ends: 2511 [2020-10-27 06:41:45,929 INFO L226 Difference]: Without dead ends: 1365 [2020-10-27 06:41:45,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-10-27 06:41:45,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-10-27 06:41:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1161. [2020-10-27 06:41:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2020-10-27 06:41:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1439 transitions. [2020-10-27 06:41:46,070 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1439 transitions. Word has length 94 [2020-10-27 06:41:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:46,070 INFO L481 AbstractCegarLoop]: Abstraction has 1161 states and 1439 transitions. [2020-10-27 06:41:46,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:41:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1439 transitions. [2020-10-27 06:41:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 06:41:46,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:46,072 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 06:41:46,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 06:41:46,072 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:46,073 INFO L82 PathProgramCache]: Analyzing trace with hash -513421574, now seen corresponding path program 1 times [2020-10-27 06:41:46,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:46,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588608913] [2020-10-27 06:41:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-27 06:41:46,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:46,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:46,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:46,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 06:41:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:46,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:46,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:46,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 06:41:46,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 06:41:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 06:41:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 06:41:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:46,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:41:46,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:41:46,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:46,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:46,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 06:41:46,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:46,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 06:41:46,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:46,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:46,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 06:41:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 06:41:46,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:46,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:46,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 06:41:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:46,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 06:41:46,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:46,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 06:41:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:46,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:46,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 06:41:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:46,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 06:41:46,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588608913] [2020-10-27 06:41:46,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:46,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 06:41:46,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808683111] [2020-10-27 06:41:46,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 06:41:46,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:46,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 06:41:46,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 06:41:46,857 INFO L87 Difference]: Start difference. First operand 1161 states and 1439 transitions. Second operand 9 states. [2020-10-27 06:41:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:49,057 INFO L93 Difference]: Finished difference Result 3145 states and 4215 transitions. [2020-10-27 06:41:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 06:41:49,057 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-27 06:41:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:49,074 INFO L225 Difference]: With dead ends: 3145 [2020-10-27 06:41:49,074 INFO L226 Difference]: Without dead ends: 2005 [2020-10-27 06:41:49,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2020-10-27 06:41:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2020-10-27 06:41:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1653. [2020-10-27 06:41:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1653 states. [2020-10-27 06:41:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2123 transitions. [2020-10-27 06:41:49,279 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2123 transitions. Word has length 94 [2020-10-27 06:41:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:49,280 INFO L481 AbstractCegarLoop]: Abstraction has 1653 states and 2123 transitions. [2020-10-27 06:41:49,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 06:41:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2123 transitions. [2020-10-27 06:41:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 06:41:49,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:49,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:49,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 06:41:49,283 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:49,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:49,284 INFO L82 PathProgramCache]: Analyzing trace with hash 824465844, now seen corresponding path program 1 times [2020-10-27 06:41:49,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:49,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026066081] [2020-10-27 06:41:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-27 06:41:49,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 06:41:49,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-27 06:41:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 06:41:49,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 06:41:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 06:41:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 06:41:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 06:41:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 06:41:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 06:41:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 06:41:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 06:41:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 06:41:49,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 06:41:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:49,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 06:41:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 06:41:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 06:41:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 06:41:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 06:41:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 06:41:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 06:41:49,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 06:41:49,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 06:41:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 06:41:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 06:41:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 06:41:49,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026066081] [2020-10-27 06:41:49,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 06:41:49,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 06:41:49,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136997139] [2020-10-27 06:41:49,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 06:41:49,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 06:41:49,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 06:41:49,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 06:41:49,548 INFO L87 Difference]: Start difference. First operand 1653 states and 2123 transitions. Second operand 8 states. [2020-10-27 06:41:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 06:41:51,601 INFO L93 Difference]: Finished difference Result 4843 states and 6406 transitions. [2020-10-27 06:41:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 06:41:51,602 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2020-10-27 06:41:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 06:41:51,621 INFO L225 Difference]: With dead ends: 4843 [2020-10-27 06:41:51,622 INFO L226 Difference]: Without dead ends: 2425 [2020-10-27 06:41:51,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-10-27 06:41:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-10-27 06:41:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2145. [2020-10-27 06:41:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2020-10-27 06:41:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2752 transitions. [2020-10-27 06:41:51,956 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2752 transitions. Word has length 96 [2020-10-27 06:41:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 06:41:51,957 INFO L481 AbstractCegarLoop]: Abstraction has 2145 states and 2752 transitions. [2020-10-27 06:41:51,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 06:41:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2752 transitions. [2020-10-27 06:41:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 06:41:51,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:41:51,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:41:51,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 06:41:51,961 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:41:51,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:41:51,961 INFO L82 PathProgramCache]: Analyzing trace with hash 52839137, now seen corresponding path program 1 times [2020-10-27 06:41:51,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:41:51,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191449597] [2020-10-27 06:41:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 06:41:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 06:41:51,983 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 06:41:51,983 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 06:41:51,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 06:41:52,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:41:52 BoogieIcfgContainer [2020-10-27 06:41:52,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 06:41:52,021 INFO L168 Benchmark]: Toolchain (without parser) took 43910.97 ms. Allocated memory was 154.1 MB in the beginning and 671.1 MB in the end (delta: 516.9 MB). Free memory was 129.8 MB in the beginning and 542.7 MB in the end (delta: -413.0 MB). Peak memory consumption was 105.1 MB. Max. memory is 8.0 GB. [2020-10-27 06:41:52,022 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 154.1 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 06:41:52,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.59 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 116.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-27 06:41:52,024 INFO L168 Benchmark]: Boogie Preprocessor took 51.61 ms. Allocated memory is still 154.1 MB. Free memory was 116.7 MB in the beginning and 114.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 06:41:52,024 INFO L168 Benchmark]: RCFGBuilder took 856.04 ms. Allocated memory is still 154.1 MB. Free memory was 114.7 MB in the beginning and 118.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-10-27 06:41:52,025 INFO L168 Benchmark]: TraceAbstraction took 42624.48 ms. Allocated memory was 154.1 MB in the beginning and 671.1 MB in the end (delta: 516.9 MB). Free memory was 118.0 MB in the beginning and 542.7 MB in the end (delta: -424.7 MB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. [2020-10-27 06:41:52,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 154.1 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 360.59 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 116.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.61 ms. Allocated memory is still 154.1 MB. Free memory was 116.7 MB in the beginning and 114.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 856.04 ms. Allocated memory is still 154.1 MB. Free memory was 114.7 MB in the beginning and 118.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42624.48 ms. Allocated memory was 154.1 MB in the beginning and 671.1 MB in the end (delta: 516.9 MB). Free memory was 118.0 MB in the beginning and 542.7 MB in the end (delta: -424.7 MB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; [L441] int __retres1 ; [L445] CALL init_model() [L356] m_i = 1 [L357] t1_i = 1 [L445] RET init_model() [L446] CALL start_simulation() [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 [L389] FCALL update_channels() [L390] CALL init_threads() [L153] COND TRUE m_i == 1 [L154] m_st = 0 [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 [L390] RET init_threads() [L391] CALL fire_delta_events() [L242] COND FALSE !(M_E == 0) [L247] COND FALSE !(T1_E == 0) [L252] COND FALSE !(E_1 == 0) [L391] RET fire_delta_events() [L392] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND FALSE !(t1_pc == 1) [L136] __retres1 = 0 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) [L392] RET activate_threads() [L393] CALL reset_delta_events() [L265] COND FALSE !(M_E == 1) [L270] COND FALSE !(T1_E == 1) [L275] COND FALSE !(E_1 == 1) [L393] RET reset_delta_events() [L396] COND TRUE 1 [L399] kernel_st = 1 [L400] CALL eval() [L189] int tmp ; [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND TRUE t1_pc == 0 [L85] COND TRUE 1 [L87] t1_pc = 1 [L88] t1_st = 2 [L223] RET transmit1() [L193] COND TRUE 1 [L196] CALL, EXPR exists_runnable_thread() [L168] int __retres1 ; [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 [L184] return (__retres1); [L196] RET, EXPR exists_runnable_thread() [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 [L209] CALL master() [L33] COND TRUE m_pc == 0 [L44] COND TRUE 1 [L47] E_1 = 1 [L48] CALL immediate_notify() [L314] CALL activate_threads() [L285] int tmp ; [L286] int tmp___0 ; [L290] CALL, EXPR is_master_triggered() [L104] int __retres1 ; [L107] COND FALSE !(m_pc == 1) [L117] __retres1 = 0 [L119] return (__retres1); [L290] RET, EXPR is_master_triggered() [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) [L298] CALL, EXPR is_transmit1_triggered() [L123] int __retres1 ; [L126] COND TRUE t1_pc == 1 [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 [L138] return (__retres1); [L298] RET, EXPR is_transmit1_triggered() [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 [L314] RET activate_threads() [L48] RET immediate_notify() [L49] E_1 = 2 [L52] COND TRUE 1 [L54] m_pc = 1 [L55] m_st = 2 [L209] RET master() [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 [L223] CALL transmit1() [L74] COND FALSE !(t1_pc == 0) [L77] COND TRUE t1_pc == 1 [L93] CALL error() [L13] CALL reach_error() [L3] __assert_fail("0", "transmitter.01.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 143 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.5s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1192 SDtfs, 3967 SDslu, 336 SDs, 0 SdLazy, 7414 SolverSat, 2404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 209 SyntacticMatches, 5 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2145occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1658 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.9s InterpolantComputationTime, 812 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 674 ConstructedInterpolants, 0 QuantifiedInterpolants, 162520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 57/57 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...