/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/eca-rers2012/Problem14_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:50:36,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:50:36,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:50:37,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:50:37,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:50:37,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:50:37,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:50:37,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:50:37,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:50:37,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:50:37,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:50:37,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:50:37,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:50:37,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:50:37,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:50:37,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:50:37,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:50:37,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:50:37,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:50:37,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:50:37,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:50:37,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:50:37,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:50:37,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:50:37,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:50:37,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:50:37,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:50:37,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:50:37,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:50:37,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:50:37,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:50:37,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:50:37,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:50:37,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:50:37,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:50:37,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:50:37,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:50:37,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:50:37,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:50:37,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:50:37,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:50:37,094 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 [2020-10-28 12:50:37,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:50:37,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:50:37,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:50:37,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:50:37,126 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:50:37,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:50:37,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:50:37,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:50:37,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:50:37,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:50:37,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:50:37,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:50:37,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:50:37,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:50:37,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:50:37,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:50:37,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:50:37,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:50:37,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:50:37,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:50:37,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:50:37,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:50:37,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:50:37,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:50:37,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:50:37,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:50:37,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:50:37,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:50:37,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:50:37,627 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:50:37,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label21.c [2020-10-28 12:50:37,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31294c21/c365acba484941038c9e98f86ebefc8d/FLAG19c8683b7 [2020-10-28 12:50:38,458 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:50:38,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label21.c [2020-10-28 12:50:38,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31294c21/c365acba484941038c9e98f86ebefc8d/FLAG19c8683b7 [2020-10-28 12:50:38,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31294c21/c365acba484941038c9e98f86ebefc8d [2020-10-28 12:50:38,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:50:38,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:50:38,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:38,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:50:38,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:50:38,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:38" (1/1) ... [2020-10-28 12:50:38,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f84cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:38, skipping insertion in model container [2020-10-28 12:50:38,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:38" (1/1) ... [2020-10-28 12:50:38,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:50:38,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:50:39,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:39,289 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:50:39,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:39,525 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:50:39,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39 WrapperNode [2020-10-28 12:50:39,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:39,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:50:39,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:50:39,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:50:39,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (1/1) ... [2020-10-28 12:50:39,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:50:39,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:50:39,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:50:39,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:50:39,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (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 [2020-10-28 12:50:39,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:50:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:50:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:50:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:50:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:50:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:50:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:50:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:50:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:50:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:50:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:50:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:50:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:50:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:50:41,360 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:50:41,360 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:50:41,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:41 BoogieIcfgContainer [2020-10-28 12:50:41,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:50:41,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:50:41,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:50:41,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:50:41,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:50:38" (1/3) ... [2020-10-28 12:50:41,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13176604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:41, skipping insertion in model container [2020-10-28 12:50:41,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:39" (2/3) ... [2020-10-28 12:50:41,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13176604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:41, skipping insertion in model container [2020-10-28 12:50:41,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:41" (3/3) ... [2020-10-28 12:50:41,378 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label21.c [2020-10-28 12:50:41,396 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:50:41,403 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:50:41,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:50:41,466 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:50:41,466 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:50:41,466 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:50:41,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:50:41,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:50:41,466 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:50:41,467 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:50:41,467 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:50:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:50:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 12:50:41,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:41,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:41,500 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:41,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:41,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1822175390, now seen corresponding path program 1 times [2020-10-28 12:50:41,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:41,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583303025] [2020-10-28 12:50:41,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:41,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:42,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:42,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 12:50:42,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-28 12:50:42,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:42,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 12:50:42,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-10-28 12:50:42,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:42,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:42,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:42,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:42,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:50:42,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:42,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:42,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583303025] [2020-10-28 12:50:42,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:42,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:50:42,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861866086] [2020-10-28 12:50:42,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:50:42,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:42,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:50:42,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:50:42,638 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-28 12:50:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:45,018 INFO L93 Difference]: Finished difference Result 703 states and 1247 transitions. [2020-10-28 12:50:45,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:50:45,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-28 12:50:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:45,036 INFO L225 Difference]: With dead ends: 703 [2020-10-28 12:50:45,037 INFO L226 Difference]: Without dead ends: 381 [2020-10-28 12:50:45,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:45,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-28 12:50:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 375. [2020-10-28 12:50:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-10-28 12:50:45,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 605 transitions. [2020-10-28 12:50:45,164 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 605 transitions. Word has length 41 [2020-10-28 12:50:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:45,164 INFO L481 AbstractCegarLoop]: Abstraction has 375 states and 605 transitions. [2020-10-28 12:50:45,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:50:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 605 transitions. [2020-10-28 12:50:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 12:50:45,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:45,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:45,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:50:45,171 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:45,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1512337969, now seen corresponding path program 1 times [2020-10-28 12:50:45,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:45,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517247172] [2020-10-28 12:50:45,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:45,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 12:50:46,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1482 [2020-10-28 12:50:46,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:46,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:46,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:50:46,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:46,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:46,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:46,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:46,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:50:46,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:46,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:46,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:47,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:50:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 12:50:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:47,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:50:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:47,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517247172] [2020-10-28 12:50:47,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:47,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:47,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651102745] [2020-10-28 12:50:47,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:47,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:47,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:47,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:47,155 INFO L87 Difference]: Start difference. First operand 375 states and 605 transitions. Second operand 7 states. [2020-10-28 12:50:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:50,172 INFO L93 Difference]: Finished difference Result 1147 states and 1882 transitions. [2020-10-28 12:50:50,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:50,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-28 12:50:50,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:50,189 INFO L225 Difference]: With dead ends: 1147 [2020-10-28 12:50:50,189 INFO L226 Difference]: Without dead ends: 778 [2020-10-28 12:50:50,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-28 12:50:50,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 751. [2020-10-28 12:50:50,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-28 12:50:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1065 transitions. [2020-10-28 12:50:50,290 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1065 transitions. Word has length 110 [2020-10-28 12:50:50,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:50,290 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 1065 transitions. [2020-10-28 12:50:50,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:50,290 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1065 transitions. [2020-10-28 12:50:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 12:50:50,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:50,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:50,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:50:50,294 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:50,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:50,294 INFO L82 PathProgramCache]: Analyzing trace with hash -346827241, now seen corresponding path program 1 times [2020-10-28 12:50:50,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:50,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082877952] [2020-10-28 12:50:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:50,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 12:50:51,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-28 12:50:51,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:50:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:51,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:50:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:50:51,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:50:51,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:51,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:50:51,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:51,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082877952] [2020-10-28 12:50:51,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:51,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:51,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092188622] [2020-10-28 12:50:51,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:51,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:51,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:51,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:51,588 INFO L87 Difference]: Start difference. First operand 751 states and 1065 transitions. Second operand 7 states. [2020-10-28 12:50:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:54,202 INFO L93 Difference]: Finished difference Result 1718 states and 2551 transitions. [2020-10-28 12:50:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:50:54,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2020-10-28 12:50:54,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:54,220 INFO L225 Difference]: With dead ends: 1718 [2020-10-28 12:50:54,221 INFO L226 Difference]: Without dead ends: 973 [2020-10-28 12:50:54,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:54,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-10-28 12:50:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 941. [2020-10-28 12:50:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-10-28 12:50:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1261 transitions. [2020-10-28 12:50:54,339 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1261 transitions. Word has length 111 [2020-10-28 12:50:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:54,342 INFO L481 AbstractCegarLoop]: Abstraction has 941 states and 1261 transitions. [2020-10-28 12:50:54,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:54,342 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1261 transitions. [2020-10-28 12:50:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 12:50:54,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:54,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:54,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:50:54,352 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash 877462969, now seen corresponding path program 1 times [2020-10-28 12:50:54,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:54,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319670695] [2020-10-28 12:50:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:54,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:50:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:55,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:55,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:50:55,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:55,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 12:50:55,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:55,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:55,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:50:55,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:55,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319670695] [2020-10-28 12:50:55,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:55,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:55,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549819986] [2020-10-28 12:50:55,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:55,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:55,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:55,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:55,846 INFO L87 Difference]: Start difference. First operand 941 states and 1261 transitions. Second operand 7 states. [2020-10-28 12:50:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:58,485 INFO L93 Difference]: Finished difference Result 1909 states and 2586 transitions. [2020-10-28 12:50:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:58,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 114 [2020-10-28 12:50:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:58,495 INFO L225 Difference]: With dead ends: 1909 [2020-10-28 12:50:58,496 INFO L226 Difference]: Without dead ends: 974 [2020-10-28 12:50:58,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:58,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2020-10-28 12:50:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 941. [2020-10-28 12:50:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-10-28 12:50:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1249 transitions. [2020-10-28 12:50:58,539 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1249 transitions. Word has length 114 [2020-10-28 12:50:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:58,540 INFO L481 AbstractCegarLoop]: Abstraction has 941 states and 1249 transitions. [2020-10-28 12:50:58,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1249 transitions. [2020-10-28 12:50:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-28 12:50:58,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:58,543 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:58,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:50:58,543 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:58,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:58,544 INFO L82 PathProgramCache]: Analyzing trace with hash -147569011, now seen corresponding path program 1 times [2020-10-28 12:50:58,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:58,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60335055] [2020-10-28 12:50:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:58,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 12:51:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1794 [2020-10-28 12:51:00,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:51:00,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:00,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:00,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:51:00,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:00,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:00,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 12:51:00,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:00,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:51:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:00,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60335055] [2020-10-28 12:51:00,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:51:00,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:51:00,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796204852] [2020-10-28 12:51:00,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:00,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:00,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:00,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:00,708 INFO L87 Difference]: Start difference. First operand 941 states and 1249 transitions. Second operand 7 states. [2020-10-28 12:51:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:03,365 INFO L93 Difference]: Finished difference Result 1896 states and 2537 transitions. [2020-10-28 12:51:03,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:03,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-28 12:51:03,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:03,376 INFO L225 Difference]: With dead ends: 1896 [2020-10-28 12:51:03,377 INFO L226 Difference]: Without dead ends: 961 [2020-10-28 12:51:03,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-10-28 12:51:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 945. [2020-10-28 12:51:03,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2020-10-28 12:51:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1237 transitions. [2020-10-28 12:51:03,419 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1237 transitions. Word has length 124 [2020-10-28 12:51:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:03,421 INFO L481 AbstractCegarLoop]: Abstraction has 945 states and 1237 transitions. [2020-10-28 12:51:03,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1237 transitions. [2020-10-28 12:51:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-28 12:51:03,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:03,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:03,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:51:03,424 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:03,425 INFO L82 PathProgramCache]: Analyzing trace with hash -395009165, now seen corresponding path program 1 times [2020-10-28 12:51:03,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:03,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465847801] [2020-10-28 12:51:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:03,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:03,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:03,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 12:51:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:51:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 12:51:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:03,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:03,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:03,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:03,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:51:03,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:03,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:03,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:03,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:03,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 19 [2020-10-28 12:51:03,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:03,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:03,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:03,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:51:03,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:51:03,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:03,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:03,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:03,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:51:04,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465847801] [2020-10-28 12:51:04,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:04,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:51:04,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629696015] [2020-10-28 12:51:04,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:51:04,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:51:04,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:51:04,028 INFO L87 Difference]: Start difference. First operand 945 states and 1237 transitions. Second operand 6 states. [2020-10-28 12:51:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:07,009 INFO L93 Difference]: Finished difference Result 2444 states and 3214 transitions. [2020-10-28 12:51:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:51:07,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2020-10-28 12:51:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:07,019 INFO L225 Difference]: With dead ends: 2444 [2020-10-28 12:51:07,020 INFO L226 Difference]: Without dead ends: 1505 [2020-10-28 12:51:07,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-10-28 12:51:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1313. [2020-10-28 12:51:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-10-28 12:51:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1689 transitions. [2020-10-28 12:51:07,064 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1689 transitions. Word has length 125 [2020-10-28 12:51:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:07,065 INFO L481 AbstractCegarLoop]: Abstraction has 1313 states and 1689 transitions. [2020-10-28 12:51:07,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:51:07,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1689 transitions. [2020-10-28 12:51:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-28 12:51:07,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:07,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:07,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:51:07,069 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:07,070 INFO L82 PathProgramCache]: Analyzing trace with hash -606332520, now seen corresponding path program 1 times [2020-10-28 12:51:07,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:07,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462862092] [2020-10-28 12:51:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:07,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:07,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:10,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3859 [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:10,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:10,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:51:10,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:51:10,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:11,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:11,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:11,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:11,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:11,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:51:11,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:11,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:11,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:11,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:11,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:11,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:11,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:51:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:11,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:11,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:11,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:51:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:51:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462862092] [2020-10-28 12:51:11,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:11,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:51:11,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056222586] [2020-10-28 12:51:11,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:51:11,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:51:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:11,629 INFO L87 Difference]: Start difference. First operand 1313 states and 1689 transitions. Second operand 8 states. [2020-10-28 12:51:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:14,932 INFO L93 Difference]: Finished difference Result 3396 states and 4467 transitions. [2020-10-28 12:51:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:51:14,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2020-10-28 12:51:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:14,945 INFO L225 Difference]: With dead ends: 3396 [2020-10-28 12:51:14,945 INFO L226 Difference]: Without dead ends: 1891 [2020-10-28 12:51:14,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:51:14,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2020-10-28 12:51:15,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1683. [2020-10-28 12:51:15,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1683 states. [2020-10-28 12:51:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1863 transitions. [2020-10-28 12:51:15,020 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1863 transitions. Word has length 208 [2020-10-28 12:51:15,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:15,020 INFO L481 AbstractCegarLoop]: Abstraction has 1683 states and 1863 transitions. [2020-10-28 12:51:15,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:51:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1863 transitions. [2020-10-28 12:51:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-28 12:51:15,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:15,027 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:15,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:51:15,027 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:15,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:15,028 INFO L82 PathProgramCache]: Analyzing trace with hash -635422731, now seen corresponding path program 1 times [2020-10-28 12:51:15,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:15,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802627907] [2020-10-28 12:51:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:15,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-28 12:51:20,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:20,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-28 12:51:20,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:20,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:51:20,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:51:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:51:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:20,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:51:20,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:20,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:51:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:20,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:20,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:51:20,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:20,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:51:20,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:20,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:51:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:20,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-28 12:51:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:20,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:20,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:20,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:20,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:20,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:51:20,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:20,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:51:20,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:20,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 99 proven. 146 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-28 12:51:21,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802627907] [2020-10-28 12:51:21,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:21,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:21,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405505544] [2020-10-28 12:51:21,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:21,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:21,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:21,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:21,127 INFO L87 Difference]: Start difference. First operand 1683 states and 1863 transitions. Second operand 7 states. [2020-10-28 12:51:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:23,126 INFO L93 Difference]: Finished difference Result 4306 states and 4836 transitions. [2020-10-28 12:51:23,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:23,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 306 [2020-10-28 12:51:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:23,144 INFO L225 Difference]: With dead ends: 4306 [2020-10-28 12:51:23,147 INFO L226 Difference]: Without dead ends: 2445 [2020-10-28 12:51:23,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-10-28 12:51:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2247. [2020-10-28 12:51:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2247 states. [2020-10-28 12:51:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 2468 transitions. [2020-10-28 12:51:23,229 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 2468 transitions. Word has length 306 [2020-10-28 12:51:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:23,230 INFO L481 AbstractCegarLoop]: Abstraction has 2247 states and 2468 transitions. [2020-10-28 12:51:23,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 2468 transitions. [2020-10-28 12:51:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-10-28 12:51:23,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:23,244 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:23,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:51:23,244 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:23,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:23,248 INFO L82 PathProgramCache]: Analyzing trace with hash -111818869, now seen corresponding path program 1 times [2020-10-28 12:51:23,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:23,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83324480] [2020-10-28 12:51:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:23,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:23,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:23,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-28 12:51:28,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:51:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-28 12:51:28,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:51:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:51:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-28 12:51:28,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:28,646 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-28 12:51:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:28,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:28,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:28,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:28,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:28,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:28,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:28,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:28,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:28,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:51:28,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:51:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:28,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:28,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:29,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:51:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:29,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:51:29,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-28 12:51:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:29,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:29,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:29,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:29,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:51:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 537 proven. 154 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2020-10-28 12:51:29,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83324480] [2020-10-28 12:51:29,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:29,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:29,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902940191] [2020-10-28 12:51:29,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:29,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:29,729 INFO L87 Difference]: Start difference. First operand 2247 states and 2468 transitions. Second operand 7 states. [2020-10-28 12:51:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:32,919 INFO L93 Difference]: Finished difference Result 4890 states and 5380 transitions. [2020-10-28 12:51:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:32,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 533 [2020-10-28 12:51:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:32,933 INFO L225 Difference]: With dead ends: 4890 [2020-10-28 12:51:32,934 INFO L226 Difference]: Without dead ends: 2831 [2020-10-28 12:51:32,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2020-10-28 12:51:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2617. [2020-10-28 12:51:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2617 states. [2020-10-28 12:51:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 2854 transitions. [2020-10-28 12:51:33,019 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 2854 transitions. Word has length 533 [2020-10-28 12:51:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:33,022 INFO L481 AbstractCegarLoop]: Abstraction has 2617 states and 2854 transitions. [2020-10-28 12:51:33,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:33,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 2854 transitions. [2020-10-28 12:51:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2020-10-28 12:51:33,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:33,047 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:33,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:51:33,047 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:33,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1027075328, now seen corresponding path program 1 times [2020-10-28 12:51:33,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:33,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035199808] [2020-10-28 12:51:33,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:35,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 714 [2020-10-28 12:51:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-28 12:51:38,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 586 [2020-10-28 12:51:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:51:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:38,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 12:51:38,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:38,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:38,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:51:38,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:38,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:51:38,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 12:51:38,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:51:38,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-28 12:51:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:38,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:38,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:51:38,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:51:38,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:38,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:38,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:51:38,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 608 proven. 2 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-28 12:51:39,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035199808] [2020-10-28 12:51:39,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:39,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:39,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599628364] [2020-10-28 12:51:39,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:39,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:39,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:39,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:39,572 INFO L87 Difference]: Start difference. First operand 2617 states and 2854 transitions. Second operand 7 states. [2020-10-28 12:51:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:41,953 INFO L93 Difference]: Finished difference Result 5254 states and 5760 transitions. [2020-10-28 12:51:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:51:41,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 692 [2020-10-28 12:51:41,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:41,968 INFO L225 Difference]: With dead ends: 5254 [2020-10-28 12:51:41,969 INFO L226 Difference]: Without dead ends: 2637 [2020-10-28 12:51:41,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2020-10-28 12:51:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2611. [2020-10-28 12:51:42,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2611 states. [2020-10-28 12:51:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 2807 transitions. [2020-10-28 12:51:42,046 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 2807 transitions. Word has length 692 [2020-10-28 12:51:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:42,048 INFO L481 AbstractCegarLoop]: Abstraction has 2611 states and 2807 transitions. [2020-10-28 12:51:42,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 2807 transitions. [2020-10-28 12:51:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2020-10-28 12:51:42,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:42,079 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:42,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:51:42,079 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:42,080 INFO L82 PathProgramCache]: Analyzing trace with hash -264390176, now seen corresponding path program 1 times [2020-10-28 12:51:42,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:42,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140786016] [2020-10-28 12:51:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:42,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:45,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 811 [2020-10-28 12:51:47,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 12:51:47,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:47,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:47,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:47,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:47,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:47,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:47,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:47,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:47,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:47,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:47,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:47,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:47,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:47,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:47,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:51:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:48,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:51:48,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 712 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-28 12:51:48,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140786016] [2020-10-28 12:51:48,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:48,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:48,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639247348] [2020-10-28 12:51:48,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:48,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:48,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:48,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:48,786 INFO L87 Difference]: Start difference. First operand 2611 states and 2807 transitions. Second operand 7 states. [2020-10-28 12:51:51,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:51,005 INFO L93 Difference]: Finished difference Result 5982 states and 6548 transitions. [2020-10-28 12:51:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:51,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 789 [2020-10-28 12:51:51,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:51,026 INFO L225 Difference]: With dead ends: 5982 [2020-10-28 12:51:51,026 INFO L226 Difference]: Without dead ends: 3559 [2020-10-28 12:51:51,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2020-10-28 12:51:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 3355. [2020-10-28 12:51:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3355 states. [2020-10-28 12:51:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 3682 transitions. [2020-10-28 12:51:51,126 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 3682 transitions. Word has length 789 [2020-10-28 12:51:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:51,128 INFO L481 AbstractCegarLoop]: Abstraction has 3355 states and 3682 transitions. [2020-10-28 12:51:51,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 3682 transitions. [2020-10-28 12:51:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2020-10-28 12:51:51,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:51,140 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:51,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:51:51,141 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:51,142 INFO L82 PathProgramCache]: Analyzing trace with hash 190229819, now seen corresponding path program 1 times [2020-10-28 12:51:51,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:51,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799004614] [2020-10-28 12:51:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:51,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:51,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:52,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 889 [2020-10-28 12:51:56,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:56,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:56,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:56,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:56,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:51:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:51:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:57,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:57,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:57,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:51:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:57,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:57,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2214 backedges. 570 proven. 146 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2020-10-28 12:51:57,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799004614] [2020-10-28 12:51:57,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:57,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:57,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108910292] [2020-10-28 12:51:57,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:57,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:57,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:57,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:57,692 INFO L87 Difference]: Start difference. First operand 3355 states and 3682 transitions. Second operand 7 states. [2020-10-28 12:51:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:59,724 INFO L93 Difference]: Finished difference Result 8186 states and 9167 transitions. [2020-10-28 12:51:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:59,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 865 [2020-10-28 12:51:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:59,754 INFO L225 Difference]: With dead ends: 8186 [2020-10-28 12:51:59,754 INFO L226 Difference]: Without dead ends: 5019 [2020-10-28 12:51:59,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:59,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2020-10-28 12:51:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 4833. [2020-10-28 12:51:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4833 states. [2020-10-28 12:51:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 5414 transitions. [2020-10-28 12:51:59,882 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 5414 transitions. Word has length 865 [2020-10-28 12:51:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:59,883 INFO L481 AbstractCegarLoop]: Abstraction has 4833 states and 5414 transitions. [2020-10-28 12:51:59,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 5414 transitions. [2020-10-28 12:51:59,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2020-10-28 12:51:59,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:59,896 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:59,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:51:59,897 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:59,897 INFO L82 PathProgramCache]: Analyzing trace with hash -135652969, now seen corresponding path program 1 times [2020-10-28 12:51:59,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:59,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845279746] [2020-10-28 12:51:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 907 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:52:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:52:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:05,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:52:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:52:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:52:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:52:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:52:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:06,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2232 backedges. 604 proven. 320 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2020-10-28 12:52:07,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845279746] [2020-10-28 12:52:07,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:07,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:52:07,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391025583] [2020-10-28 12:52:07,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:52:07,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:07,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:52:07,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:07,168 INFO L87 Difference]: Start difference. First operand 4833 states and 5414 transitions. Second operand 8 states. [2020-10-28 12:52:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:09,547 INFO L93 Difference]: Finished difference Result 10392 states and 11663 transitions. [2020-10-28 12:52:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:52:09,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 883 [2020-10-28 12:52:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:09,574 INFO L225 Difference]: With dead ends: 10392 [2020-10-28 12:52:09,574 INFO L226 Difference]: Without dead ends: 5747 [2020-10-28 12:52:09,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:52:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2020-10-28 12:52:09,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5563. [2020-10-28 12:52:09,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5563 states. [2020-10-28 12:52:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 6203 transitions. [2020-10-28 12:52:09,730 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 6203 transitions. Word has length 883 [2020-10-28 12:52:09,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:09,731 INFO L481 AbstractCegarLoop]: Abstraction has 5563 states and 6203 transitions. [2020-10-28 12:52:09,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:52:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 6203 transitions. [2020-10-28 12:52:09,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2020-10-28 12:52:09,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:09,749 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:09,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:52:09,749 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:09,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:09,750 INFO L82 PathProgramCache]: Analyzing trace with hash -805079223, now seen corresponding path program 1 times [2020-10-28 12:52:09,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:09,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944519352] [2020-10-28 12:52:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:11,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:13,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 946 [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 646 [2020-10-28 12:52:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:52:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:15,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:15,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:15,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:15,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:52:15,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:52:15,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:52:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:52:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:52:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 636 [2020-10-28 12:52:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:15,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:15,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:15,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-28 12:52:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:16,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:16,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2436 backedges. 884 proven. 73 refuted. 0 times theorem prover too weak. 1479 trivial. 0 not checked. [2020-10-28 12:52:16,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944519352] [2020-10-28 12:52:16,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:16,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:16,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591637191] [2020-10-28 12:52:16,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:16,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:16,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:16,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:16,836 INFO L87 Difference]: Start difference. First operand 5563 states and 6203 transitions. Second operand 7 states. [2020-10-28 12:52:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:19,222 INFO L93 Difference]: Finished difference Result 11672 states and 13089 transitions. [2020-10-28 12:52:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:52:19,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 922 [2020-10-28 12:52:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:19,249 INFO L225 Difference]: With dead ends: 11672 [2020-10-28 12:52:19,249 INFO L226 Difference]: Without dead ends: 6297 [2020-10-28 12:52:19,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:52:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6297 states. [2020-10-28 12:52:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 5931. [2020-10-28 12:52:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5931 states. [2020-10-28 12:52:19,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 6552 transitions. [2020-10-28 12:52:19,396 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 6552 transitions. Word has length 922 [2020-10-28 12:52:19,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:19,398 INFO L481 AbstractCegarLoop]: Abstraction has 5931 states and 6552 transitions. [2020-10-28 12:52:19,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 6552 transitions. [2020-10-28 12:52:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2020-10-28 12:52:19,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:19,414 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:19,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:52:19,414 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:19,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1707700217, now seen corresponding path program 1 times [2020-10-28 12:52:19,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:19,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372162348] [2020-10-28 12:52:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:19,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:20,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:21,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 986 [2020-10-28 12:52:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:52:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:24,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:24,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:24,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:24,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:25,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:25,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:25,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:52:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:25,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-28 12:52:25,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:25,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:52:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:25,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:25,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:25,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:25,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-28 12:52:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:25,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:25,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:25,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 924 proven. 73 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2020-10-28 12:52:26,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372162348] [2020-10-28 12:52:26,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:26,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:26,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687103798] [2020-10-28 12:52:26,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:26,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:26,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:26,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:26,256 INFO L87 Difference]: Start difference. First operand 5931 states and 6552 transitions. Second operand 7 states. [2020-10-28 12:52:28,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:28,578 INFO L93 Difference]: Finished difference Result 12588 states and 13981 transitions. [2020-10-28 12:52:28,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:52:28,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 962 [2020-10-28 12:52:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:28,604 INFO L225 Difference]: With dead ends: 12588 [2020-10-28 12:52:28,604 INFO L226 Difference]: Without dead ends: 6661 [2020-10-28 12:52:28,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2020-10-28 12:52:28,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 6293. [2020-10-28 12:52:28,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6293 states. [2020-10-28 12:52:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 6959 transitions. [2020-10-28 12:52:28,762 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 6959 transitions. Word has length 962 [2020-10-28 12:52:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:28,764 INFO L481 AbstractCegarLoop]: Abstraction has 6293 states and 6959 transitions. [2020-10-28 12:52:28,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 6959 transitions. [2020-10-28 12:52:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2020-10-28 12:52:28,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:28,781 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:28,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:52:28,781 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:28,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:28,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1555607724, now seen corresponding path program 1 times [2020-10-28 12:52:28,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:28,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218970959] [2020-10-28 12:52:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:29,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:29,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1008 [2020-10-28 12:52:34,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5240 [2020-10-28 12:52:34,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 965 [2020-10-28 12:52:34,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 12:52:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:34,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:34,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:34,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:52:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:34,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:34,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 12:52:34,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:34,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:52:34,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:34,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:34,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:34,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:34,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:52:34,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2919 backedges. 277 proven. 8 refuted. 0 times theorem prover too weak. 2634 trivial. 0 not checked. [2020-10-28 12:52:35,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218970959] [2020-10-28 12:52:35,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:35,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:52:35,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604377249] [2020-10-28 12:52:35,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:52:35,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:35,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:52:35,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:52:35,475 INFO L87 Difference]: Start difference. First operand 6293 states and 6959 transitions. Second operand 6 states. [2020-10-28 12:52:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:38,155 INFO L93 Difference]: Finished difference Result 12214 states and 13543 transitions. [2020-10-28 12:52:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:52:38,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 982 [2020-10-28 12:52:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:38,178 INFO L225 Difference]: With dead ends: 12214 [2020-10-28 12:52:38,179 INFO L226 Difference]: Without dead ends: 6293 [2020-10-28 12:52:38,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:52:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2020-10-28 12:52:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6111. [2020-10-28 12:52:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6111 states. [2020-10-28 12:52:38,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 6689 transitions. [2020-10-28 12:52:38,341 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 6689 transitions. Word has length 982 [2020-10-28 12:52:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:38,342 INFO L481 AbstractCegarLoop]: Abstraction has 6111 states and 6689 transitions. [2020-10-28 12:52:38,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:52:38,342 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 6689 transitions. [2020-10-28 12:52:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2020-10-28 12:52:38,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:38,361 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:38,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:52:38,362 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:38,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:38,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1156556840, now seen corresponding path program 1 times [2020-10-28 12:52:38,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:38,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010711423] [2020-10-28 12:52:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:38,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:42,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 967 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 12:52:43,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:43,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:43,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:43,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:43,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:43,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:43,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:43,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:43,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 12:52:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 277 proven. 8 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2020-10-28 12:52:44,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010711423] [2020-10-28 12:52:44,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:44,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:52:44,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64775976] [2020-10-28 12:52:44,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:52:44,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:44,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:52:44,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:52:44,906 INFO L87 Difference]: Start difference. First operand 6111 states and 6689 transitions. Second operand 5 states. [2020-10-28 12:52:45,851 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:52:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:46,957 INFO L93 Difference]: Finished difference Result 12577 states and 13844 transitions. [2020-10-28 12:52:46,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:52:46,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 984 [2020-10-28 12:52:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:46,964 INFO L225 Difference]: With dead ends: 12577 [2020-10-28 12:52:46,964 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:52:46,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:52:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:52:46,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:52:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:52:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:52:46,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 984 [2020-10-28 12:52:46,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:46,987 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:52:46,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:52:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:52:46,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:52:46,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:52:46,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:52:47,637 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 222 [2020-10-28 12:52:48,712 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 222 [2020-10-28 12:52:49,796 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 47 [2020-10-28 12:52:49,937 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 28 [2020-10-28 12:52:51,963 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 254 DAG size of output: 58 [2020-10-28 12:52:52,909 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 47 [2020-10-28 12:52:53,490 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 42 [2020-10-28 12:52:53,495 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:52:53,496 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:52:53,496 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:52:53,497 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:52:53,497 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:52:53,498 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,499 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L270 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (not (= 10 |old(~a21~0)|)) (or (not (= |old(~a24~0)| 1)) (not (= 5 |old(~a15~0)|))) (or (= 6 |old(~a15~0)|) (not (<= |old(~a21~0)| 8))) (not (<= 12 |old(~a12~0)|)) (or (not (<= |old(~a24~0)| 1)) (not (<= (+ |old(~a12~0)| 43) 0)) (not (<= |old(~a15~0)| 5))) (or (not (<= |old(~a21~0)| 9)) (not (<= |old(~a15~0)| 8)) (not (<= 9 |old(~a21~0)|)))) [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L108-1(line 108) no Hoare annotation was computed. [2020-10-28 12:52:53,500 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:52:53,501 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:52:53,502 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:52:53,503 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:52:53,504 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:52:53,505 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,506 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse1 (= ~a24~0 |old(~a24~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse3 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (and .cse1 .cse4 .cse2 .cse3))) (and (or (not (<= |old(~a24~0)| 1)) .cse0 (not (<= (+ |old(~a12~0)| 43) 0)) (not (<= |old(~a15~0)| 5))) (or (not (<= |old(~a21~0)| 9)) .cse0 (not (<= |old(~a15~0)| 8)) (not (<= 9 |old(~a21~0)|))) (or .cse0 (not (<= 12 |old(~a12~0)|))) (or .cse0 (= 6 |old(~a15~0)|) (not (<= |old(~a21~0)| 8))) (or (not (= 10 |old(~a21~0)|)) (and .cse1 (= ~a21~0 10) .cse2 .cse3)) (or (not (= |old(~a24~0)| 1)) (and (= 5 ~a15~0) .cse4 (= ~a24~0 1) .cse2) (not (= 5 |old(~a15~0)|)))))) [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,507 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,508 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,509 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,510 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:52:53,511 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:52:53,512 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:52:53,513 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:52:53,514 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,515 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:52:53,516 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a24~0 1) (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= 7 ~a21~0)) [2020-10-28 12:52:53,517 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:52:53,517 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:52:53,517 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (<= |old(~a24~0)| 1)) (and (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-28 12:52:53,518 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (<= |old(~a24~0)| 1)) (<= 12 ~a12~0) (and (<= ~a15~0 5) (<= ~a24~0 1) (<= (+ ~a12~0 43) 0)) (and (<= 9 ~a21~0) (<= ~a15~0 8) (<= ~a21~0 9)) (= ~a21~0 10) (and (not (= ~a15~0 6)) (<= ~a21~0 8)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (= 5 ~a15~0) (= ~a24~0 1))) [2020-10-28 12:52:53,518 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:52:53,518 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:52:53,518 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:52:53,518 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (<= |old(~a24~0)| 1)) (<= 12 ~a12~0) (and (<= ~a15~0 5) (<= ~a24~0 1) (<= (+ ~a12~0 43) 0)) (and (<= 9 ~a21~0) (<= ~a15~0 8) (<= ~a21~0 9)) (= ~a21~0 10) (and (not (= ~a15~0 6)) (<= ~a21~0 8)) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (= 5 ~a15~0) (= ~a24~0 1))) [2020-10-28 12:52:53,518 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:52:53,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:52:53 BoogieIcfgContainer [2020-10-28 12:52:53,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:52:53,551 INFO L168 Benchmark]: Toolchain (without parser) took 134888.69 ms. Allocated memory was 158.3 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 131.5 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2020-10-28 12:52:53,551 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 158.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:52:53,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.23 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 133.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:52:53,553 INFO L168 Benchmark]: Boogie Preprocessor took 131.96 ms. Allocated memory is still 158.3 MB. Free memory was 133.3 MB in the beginning and 127.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:52:53,553 INFO L168 Benchmark]: RCFGBuilder took 1702.12 ms. Allocated memory was 158.3 MB in the beginning and 201.3 MB in the end (delta: 43.0 MB). Free memory was 127.5 MB in the beginning and 131.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-28 12:52:53,554 INFO L168 Benchmark]: TraceAbstraction took 132180.50 ms. Allocated memory was 201.3 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 131.2 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2020-10-28 12:52:53,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 158.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 853.23 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 133.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 131.96 ms. Allocated memory is still 158.3 MB. Free memory was 133.3 MB in the beginning and 127.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1702.12 ms. Allocated memory was 158.3 MB in the beginning and 201.3 MB in the end (delta: 43.0 MB). Free memory was 127.5 MB in the beginning and 131.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 132180.50 ms. Allocated memory was 201.3 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 131.2 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 882]: Loop Invariant Derived loop invariant: ((((((((!(7 == \old(a21)) || !(\old(a24) <= 1)) || 12 <= a12) || ((a15 <= 5 && a24 <= 1) && a12 + 43 <= 0)) || ((9 <= a21 && a15 <= 8) && a21 <= 9)) || a21 == 10) || (!(a15 == 6) && a21 <= 8)) || !(8 == \old(a15))) || !(\old(a12) + 49 <= 0)) || (5 == a15 && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 125.5s, OverallIterations: 17, TraceHistogramMax: 9, AutomataDifference: 43.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 437 SDtfs, 10109 SDslu, 571 SDs, 0 SdLazy, 17892 SolverSat, 2724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 212 SyntacticMatches, 4 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6293occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 2442 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 587 PreInvPairs, 671 NumberOfFragments, 422 HoareAnnotationTreeSize, 587 FomulaSimplifications, 6722207 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 204636 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 72.8s InterpolantComputationTime, 8751 NumberOfCodeBlocks, 8751 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 8734 ConstructedInterpolants, 0 QuantifiedInterpolants, 12339178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 19188/20194 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...