/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:40:47,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:40:47,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:40:47,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:40:47,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:40:47,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:40:47,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:40:47,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:40:47,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:40:47,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:40:47,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:40:47,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:40:47,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:40:47,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:40:47,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:40:47,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:40:47,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:40:47,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:40:47,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:40:47,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:40:47,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:40:47,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:40:47,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:40:47,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:40:47,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:40:47,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:40:47,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:40:47,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:40:47,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:40:47,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:40:47,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:40:47,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:40:47,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:40:47,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:40:47,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:40:47,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:40:47,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:40:47,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:40:47,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:40:47,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:40:47,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:40:47,522 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 [2020-10-29 09:40:47,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:40:47,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:40:47,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:40:47,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:40:47,559 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:40:47,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:40:47,559 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:40:47,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:40:47,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:40:47,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:40:47,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:40:47,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:40:47,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:40:47,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:40:47,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:40:47,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:40:47,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:40:47,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:40:47,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:40:47,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:40:47,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:40:47,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:40:47,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:40:47,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:40:47,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:40:47,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:40:47,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:40:47,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:40:47,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:40:47,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:40:47,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:40:48,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:40:48,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:40:48,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:40:48,027 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:40:48,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-10-29 09:40:48,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa7c27c7/a1b66146cd5b4869a15e8a0c9c8b05f1/FLAG5f6828893 [2020-10-29 09:40:48,700 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:40:48,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-10-29 09:40:48,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa7c27c7/a1b66146cd5b4869a15e8a0c9c8b05f1/FLAG5f6828893 [2020-10-29 09:40:49,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffa7c27c7/a1b66146cd5b4869a15e8a0c9c8b05f1 [2020-10-29 09:40:49,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:40:49,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:40:49,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:49,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:40:49,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:40:49,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56885301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49, skipping insertion in model container [2020-10-29 09:40:49,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:40:49,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:40:49,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:49,316 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:40:49,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:49,359 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:40:49,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49 WrapperNode [2020-10-29 09:40:49,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:49,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:40:49,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:40:49,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:40:49,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (1/1) ... [2020-10-29 09:40:49,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:40:49,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:40:49,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:40:49,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:40:49,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (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 [2020-10-29 09:40:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 09:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:40:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 09:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 09:40:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 09:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 09:40:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:40:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:40:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:40:49,922 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:40:49,922 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 09:40:49,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:49 BoogieIcfgContainer [2020-10-29 09:40:49,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:40:49,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:40:49,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:40:49,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:40:49,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:40:49" (1/3) ... [2020-10-29 09:40:49,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579bce69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:49, skipping insertion in model container [2020-10-29 09:40:49,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:49" (2/3) ... [2020-10-29 09:40:49,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579bce69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:49, skipping insertion in model container [2020-10-29 09:40:49,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:49" (3/3) ... [2020-10-29 09:40:49,933 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2020-10-29 09:40:49,944 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:40:49,950 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:40:49,963 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:40:49,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:40:49,990 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:40:49,990 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:40:49,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:40:49,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:40:49,991 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:40:49,991 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:40:49,991 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:40:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2020-10-29 09:40:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 09:40:50,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:50,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:50,017 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:50,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1050654410, now seen corresponding path program 1 times [2020-10-29 09:40:50,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:50,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2603265] [2020-10-29 09:40:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:50,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:50,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:50,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 09:40:50,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:50,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-29 09:40:50,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:50,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:40:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 09:40:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:40:50,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:50,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:50,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:50,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:50,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:50,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 09:40:50,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:50,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:50,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2603265] [2020-10-29 09:40:50,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:50,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 09:40:50,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563181123] [2020-10-29 09:40:50,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 09:40:50,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:50,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 09:40:50,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:40:50,740 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 6 states. [2020-10-29 09:40:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:51,764 INFO L93 Difference]: Finished difference Result 119 states and 217 transitions. [2020-10-29 09:40:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:40:51,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-29 09:40:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:51,777 INFO L225 Difference]: With dead ends: 119 [2020-10-29 09:40:51,777 INFO L226 Difference]: Without dead ends: 66 [2020-10-29 09:40:51,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-29 09:40:51,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-29 09:40:51,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-10-29 09:40:51,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-29 09:40:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2020-10-29 09:40:51,844 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 19 [2020-10-29 09:40:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:51,845 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2020-10-29 09:40:51,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 09:40:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2020-10-29 09:40:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 09:40:51,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:51,847 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:51,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:40:51,848 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:51,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1998447475, now seen corresponding path program 1 times [2020-10-29 09:40:51,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:51,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990376859] [2020-10-29 09:40:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:51,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:52,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:52,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 09:40:52,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:52,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-29 09:40:52,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:52,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:40:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 09:40:52,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 09:40:52,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:52,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:52,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:52,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:52,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:40:52,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:52,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:52,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:52,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:40:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:52,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:52,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:52,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:52,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:40:52,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:52,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:52,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:52,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:40:52,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990376859] [2020-10-29 09:40:52,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:52,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:40:52,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960453567] [2020-10-29 09:40:52,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:40:52,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:52,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:40:52,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:40:52,233 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 7 states. [2020-10-29 09:40:52,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:52,931 INFO L93 Difference]: Finished difference Result 67 states and 89 transitions. [2020-10-29 09:40:52,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:40:52,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-29 09:40:52,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:52,937 INFO L225 Difference]: With dead ends: 67 [2020-10-29 09:40:52,937 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 09:40:52,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:40:52,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 09:40:52,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-29 09:40:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-29 09:40:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2020-10-29 09:40:52,973 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 24 [2020-10-29 09:40:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:52,974 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2020-10-29 09:40:52,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:40:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2020-10-29 09:40:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 09:40:52,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:52,977 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:52,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:40:52,978 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:52,981 INFO L82 PathProgramCache]: Analyzing trace with hash 578608289, now seen corresponding path program 1 times [2020-10-29 09:40:52,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:52,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534739942] [2020-10-29 09:40:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:53,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:53,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:53,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:53,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:53,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 09:40:53,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:40:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 963 [2020-10-29 09:40:53,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:53,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:40:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 09:40:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 09:40:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:54,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:54,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:54,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:40:54,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:40:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:54,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:54,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 09:40:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:40:54,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 09:40:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:40:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:40:54,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 09:40:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:54,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:54,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:54,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:40:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:40:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:40:54,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:54,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 09:40:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:54,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:54,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:54,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:54,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:54,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:54,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 09:40:54,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534739942] [2020-10-29 09:40:54,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:54,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:40:54,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876688139] [2020-10-29 09:40:54,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:40:54,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:54,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:40:54,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:40:54,197 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand 7 states. [2020-10-29 09:40:54,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:54,873 INFO L93 Difference]: Finished difference Result 75 states and 98 transitions. [2020-10-29 09:40:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:40:54,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-10-29 09:40:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:54,877 INFO L225 Difference]: With dead ends: 75 [2020-10-29 09:40:54,877 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 09:40:54,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:40:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 09:40:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-10-29 09:40:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 09:40:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2020-10-29 09:40:54,904 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 53 [2020-10-29 09:40:54,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:54,905 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2020-10-29 09:40:54,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:40:54,905 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2020-10-29 09:40:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 09:40:54,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:54,912 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:54,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 09:40:54,913 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:54,913 INFO L82 PathProgramCache]: Analyzing trace with hash -332538009, now seen corresponding path program 1 times [2020-10-29 09:40:54,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:54,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357522706] [2020-10-29 09:40:54,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:54,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:54,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:55,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 09:40:57,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 09:40:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2661 [2020-10-29 09:40:57,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:40:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-29 09:40:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 09:40:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:57,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:40:57,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:40:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:57,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 09:40:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:40:57,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 09:40:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:57,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:57,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 09:40:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:57,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 09:40:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:57,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 09:40:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:57,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 09:40:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:40:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 09:40:57,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 09:40:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 09:40:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:40:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:40:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:40:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 09:40:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:40:57,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 09:40:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 09:40:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:57,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 09:40:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 09:40:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:57,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:57,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:57,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:57,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 09:40:57,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:57,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-10-29 09:40:57,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357522706] [2020-10-29 09:40:57,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 09:40:57,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 09:40:57,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735437423] [2020-10-29 09:40:57,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:40:57,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:57,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:40:57,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:40:57,868 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand 7 states. [2020-10-29 09:40:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:58,499 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2020-10-29 09:40:58,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 09:40:58,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-29 09:40:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:58,502 INFO L225 Difference]: With dead ends: 102 [2020-10-29 09:40:58,502 INFO L226 Difference]: Without dead ends: 67 [2020-10-29 09:40:58,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-29 09:40:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-29 09:40:58,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-29 09:40:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 09:40:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-10-29 09:40:58,518 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 88 [2020-10-29 09:40:58,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:58,518 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-10-29 09:40:58,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:40:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-10-29 09:40:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 09:40:58,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:58,520 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:58,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 09:40:58,521 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1672325661, now seen corresponding path program 1 times [2020-10-29 09:40:58,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:58,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355729056] [2020-10-29 09:40:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 09:40:58,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-29 09:40:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 09:40:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:58,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:58,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:58,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:40:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 09:40:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 09:40:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 09:40:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 09:40:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 09:40:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:40:58,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 09:40:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 09:40:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 09:40:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 09:40:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:58,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:58,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 09:40:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:58,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:58,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:58,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 09:40:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:58,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:58,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:58,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:58,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:58,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-29 09:40:58,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355729056] [2020-10-29 09:40:58,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:58,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:40:58,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180080214] [2020-10-29 09:40:58,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:40:58,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:58,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:40:58,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:40:58,885 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 7 states. [2020-10-29 09:40:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:40:59,565 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2020-10-29 09:40:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:40:59,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-29 09:40:59,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:40:59,568 INFO L225 Difference]: With dead ends: 78 [2020-10-29 09:40:59,568 INFO L226 Difference]: Without dead ends: 74 [2020-10-29 09:40:59,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:40:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-29 09:40:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2020-10-29 09:40:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-29 09:40:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2020-10-29 09:40:59,590 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 89 [2020-10-29 09:40:59,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:40:59,592 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2020-10-29 09:40:59,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:40:59,592 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2020-10-29 09:40:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 09:40:59,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:59,598 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:40:59,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 09:40:59,599 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:59,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1856886932, now seen corresponding path program 1 times [2020-10-29 09:40:59,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:59,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859728573] [2020-10-29 09:40:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:40:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 09:40:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-29 09:40:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:40:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:40:59,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:40:59,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 09:40:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 09:40:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 09:40:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 09:40:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 09:40:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 09:40:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 09:40:59,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 09:40:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 09:40:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 09:40:59,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:40:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:40:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 09:40:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:59,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:59,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 09:40:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 09:40:59,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:59,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 09:40:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:59,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:59,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 09:40:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:59,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:40:59,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 09:40:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:59,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:40:59,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:40:59,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:40:59,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:40:59,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:40:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-29 09:40:59,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859728573] [2020-10-29 09:40:59,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:59,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 09:40:59,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126093712] [2020-10-29 09:40:59,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 09:40:59,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:40:59,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 09:40:59,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 09:40:59,960 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand 7 states. [2020-10-29 09:41:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:41:00,621 INFO L93 Difference]: Finished difference Result 77 states and 98 transitions. [2020-10-29 09:41:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 09:41:00,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-29 09:41:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:41:00,623 INFO L225 Difference]: With dead ends: 77 [2020-10-29 09:41:00,623 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 09:41:00,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-29 09:41:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 09:41:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 09:41:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 09:41:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 09:41:00,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2020-10-29 09:41:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:41:00,629 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 09:41:00,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 09:41:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 09:41:00,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 09:41:00,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 09:41:00,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 09:41:01,150 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 20 [2020-10-29 09:41:01,446 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 20 [2020-10-29 09:41:02,355 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-29 09:41:02,356 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-29 09:41:02,356 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-29 09:41:02,356 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-29 09:41:02,357 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-29 09:41:02,357 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:41:02,357 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-29 09:41:02,357 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:41:02,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:41:02,358 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 09:41:02,358 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 09:41:02,358 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:41:02,358 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-29 09:41:02,358 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2020-10-29 09:41:02,358 INFO L274 CegarLoopResult]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 24 83) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point L44(lines 44 80) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point L36(lines 25 83) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point L69-1(lines 69 75) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L274 CegarLoopResult]: For program point L61(lines 61 79) no Hoare annotation was computed. [2020-10-29 09:41:02,359 INFO L270 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,359 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,360 INFO L270 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,360 INFO L274 CegarLoopResult]: For program point L37(lines 25 83) no Hoare annotation was computed. [2020-10-29 09:41:02,360 INFO L274 CegarLoopResult]: For program point L54(lines 44 80) no Hoare annotation was computed. [2020-10-29 09:41:02,360 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 24 83) no Hoare annotation was computed. [2020-10-29 09:41:02,360 INFO L270 CegarLoopResult]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 1 main_~c~0) (<= 0 main_~scheme~0) (< main_~c~0 main_~tokenlen~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,361 INFO L270 CegarLoopResult]: At program point L71-1(line 71) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 1 main_~c~0) (<= 0 main_~scheme~0) (< main_~c~0 main_~tokenlen~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,361 INFO L270 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (<= 0 main_~c~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,361 INFO L270 CegarLoopResult]: At program point L63-1(line 63) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (<= 0 main_~c~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,361 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 24 83) the Hoare annotation is: true [2020-10-29 09:41:02,361 INFO L270 CegarLoopResult]: At program point L47-1(lines 46 52) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,362 INFO L270 CegarLoopResult]: At program point L47-2(lines 47 52) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,362 INFO L270 CegarLoopResult]: At program point L72(line 72) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 1 main_~c~0) (<= 0 main_~scheme~0) (< main_~c~0 main_~tokenlen~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,362 INFO L270 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,362 INFO L270 CegarLoopResult]: At program point L56-1(line 56) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,362 INFO L277 CegarLoopResult]: At program point L81(lines 25 83) the Hoare annotation is: true [2020-10-29 09:41:02,362 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 09:41:02,363 INFO L270 CegarLoopResult]: At program point L73(line 73) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 1 main_~c~0) (<= 0 main_~scheme~0) (< main_~c~0 main_~tokenlen~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,363 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-29 09:41:02,363 INFO L270 CegarLoopResult]: At program point L65-1(lines 64 77) the Hoare annotation is: (and (<= 0 main_~scheme~0) (<= 0 main_~c~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,363 INFO L274 CegarLoopResult]: For program point L57(lines 44 80) no Hoare annotation was computed. [2020-10-29 09:41:02,363 INFO L270 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,363 INFO L270 CegarLoopResult]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,364 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 09:41:02,364 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-29 09:41:02,364 INFO L270 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,364 INFO L270 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: (and (<= 0 main_~scheme~0) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 (+ main_~cp~0 1))) [2020-10-29 09:41:02,364 INFO L270 CegarLoopResult]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= 0 main_~c~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,364 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L270 CegarLoopResult]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse0 (+ main_~cp~0 1))) (and (<= 0 main_~scheme~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= 0 main_~c~0) (not (= .cse0 main_~urilen~0)) (not (= main_~cp~0 0)) (< main_~cp~0 main_~urilen~0) (< 0 .cse0))) [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point L35-1(lines 25 83) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2020-10-29 09:41:02,365 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2020-10-29 09:41:02,365 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-29 09:41:02,366 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-10-29 09:41:02,366 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-29 09:41:02,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:41:02 BoogieIcfgContainer [2020-10-29 09:41:02,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:41:02,394 INFO L168 Benchmark]: Toolchain (without parser) took 13312.45 ms. Allocated memory was 164.6 MB in the beginning and 286.3 MB in the end (delta: 121.6 MB). Free memory was 139.6 MB in the beginning and 176.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 160.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:02,395 INFO L168 Benchmark]: CDTParser took 1.57 ms. Allocated memory is still 164.6 MB. Free memory is still 137.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:41:02,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.06 ms. Allocated memory is still 164.6 MB. Free memory was 138.9 MB in the beginning and 128.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:02,404 INFO L168 Benchmark]: Boogie Preprocessor took 41.15 ms. Allocated memory is still 164.6 MB. Free memory was 128.7 MB in the beginning and 127.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:02,405 INFO L168 Benchmark]: RCFGBuilder took 520.98 ms. Allocated memory is still 164.6 MB. Free memory was 127.0 MB in the beginning and 143.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:02,406 INFO L168 Benchmark]: TraceAbstraction took 12464.33 ms. Allocated memory was 164.6 MB in the beginning and 286.3 MB in the end (delta: 121.6 MB). Free memory was 143.3 MB in the beginning and 176.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 163.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:41:02,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57 ms. Allocated memory is still 164.6 MB. Free memory is still 137.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 272.06 ms. Allocated memory is still 164.6 MB. Free memory was 138.9 MB in the beginning and 128.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.15 ms. Allocated memory is still 164.6 MB. Free memory was 128.7 MB in the beginning and 127.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 520.98 ms. Allocated memory is still 164.6 MB. Free memory was 127.0 MB in the beginning and 143.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12464.33 ms. Allocated memory was 164.6 MB in the beginning and 286.3 MB in the end (delta: 121.6 MB). Free memory was 143.3 MB in the beginning and 176.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 163.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((0 <= scheme && !(cp == 0)) && cp < urilen) && 0 < cp + 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((0 <= scheme && 0 <= c) && !(cp == 0)) && cp < urilen) && 0 < cp + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.6s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 275 SDslu, 386 SDs, 0 SdLazy, 1213 SolverSat, 318 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 133 PreInvPairs, 163 NumberOfFragments, 475 HoareAnnotationTreeSize, 133 FomulaSimplifications, 1681 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 28 FomulaSimplificationsInter, 786 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 361 ConstructedInterpolants, 0 QuantifiedInterpolants, 47127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 979/988 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 correct! Received shutdown request...