/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_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:55:20,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:55:20,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:55:20,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:55:20,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:55:20,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:55:20,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:55:20,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:55:20,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:55:20,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:55:20,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:55:20,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:55:20,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:55:20,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:55:20,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:55:20,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:55:20,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:55:20,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:55:20,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:55:20,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:55:20,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:55:20,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:55:20,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:55:20,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:55:20,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:55:20,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:55:20,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:55:20,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:55:20,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:55:20,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:55:20,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:55:20,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:55:20,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:55:20,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:55:20,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:55:20,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:55:20,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:55:20,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:55:20,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:55:20,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:55:20,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:55:20,808 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 12:55:20,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:55:20,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:55:20,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:55:20,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:55:20,844 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:55:20,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:55:20,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:55:20,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:55:20,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:55:20,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:55:20,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:55:20,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:55:20,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:55:20,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:55:20,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:55:20,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:55:20,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:55:20,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:55:20,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:55:20,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:55:20,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:55:20,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:55:20,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:55:20,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:55:20,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:55:20,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:55:20,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:55:20,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:55:20,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:55:20,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:55:21,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:55:21,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:55:21,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:55:21,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:55:21,395 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:55:21,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-28 12:55:21,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e90db6a/7f01b92987ec417fb8a98a39d3390228/FLAG90d458301 [2020-10-28 12:55:22,384 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:55:22,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label47.c [2020-10-28 12:55:22,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e90db6a/7f01b92987ec417fb8a98a39d3390228/FLAG90d458301 [2020-10-28 12:55:22,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e90db6a/7f01b92987ec417fb8a98a39d3390228 [2020-10-28 12:55:22,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:55:22,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:55:22,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:55:22,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:55:22,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:55:22,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:55:22" (1/1) ... [2020-10-28 12:55:22,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47aad1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:22, skipping insertion in model container [2020-10-28 12:55:22,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:55:22" (1/1) ... [2020-10-28 12:55:22,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:55:22,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:55:23,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:55:23,104 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:55:23,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:55:23,322 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:55:23,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23 WrapperNode [2020-10-28 12:55:23,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:55:23,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:55:23,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:55:23,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:55:23,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (1/1) ... [2020-10-28 12:55:23,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:55:23,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:55:23,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:55:23,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:55:23,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (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 12:55:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:55:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:55:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:55:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:55:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:55:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:55:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:55:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:55:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:55:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:55:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:55:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:55:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:55:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:55:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:55:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:55:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:55:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:55:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:55:25,060 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:55:25,060 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:55:25,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:25 BoogieIcfgContainer [2020-10-28 12:55:25,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:55:25,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:55:25,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:55:25,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:55:25,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:55:22" (1/3) ... [2020-10-28 12:55:25,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec4826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:25, skipping insertion in model container [2020-10-28 12:55:25,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:55:23" (2/3) ... [2020-10-28 12:55:25,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ec4826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:25, skipping insertion in model container [2020-10-28 12:55:25,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:25" (3/3) ... [2020-10-28 12:55:25,074 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2020-10-28 12:55:25,089 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:55:25,096 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:55:25,112 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:55:25,148 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:55:25,148 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:55:25,149 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:55:25,149 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:55:25,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:55:25,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:55:25,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:55:25,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:55:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:55:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 12:55:25,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:25,183 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] [2020-10-28 12:55:25,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:25,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:25,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1326675816, now seen corresponding path program 1 times [2020-10-28 12:55:25,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:25,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521499823] [2020-10-28 12:55:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:25,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:25,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:25,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 12:55:25,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:25,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-28 12:55:25,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:25,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:25,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 12:55:25,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:55:26,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:26,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:26,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:26,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:26,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:55:26,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:26,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:26,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:26,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:26,208 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 12:55:26,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521499823] [2020-10-28 12:55:26,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:26,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:55:26,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605435900] [2020-10-28 12:55:26,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:55:26,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:26,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:55:26,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:55:26,240 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:55:28,069 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 12:55:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:29,954 INFO L93 Difference]: Finished difference Result 891 states and 1618 transitions. [2020-10-28 12:55:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:55:29,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-10-28 12:55:29,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:29,976 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:55:29,976 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:55:29,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:30,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:55:30,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2020-10-28 12:55:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 561 states. [2020-10-28 12:55:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 856 transitions. [2020-10-28 12:55:30,131 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 856 transitions. Word has length 40 [2020-10-28 12:55:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:30,133 INFO L481 AbstractCegarLoop]: Abstraction has 561 states and 856 transitions. [2020-10-28 12:55:30,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:55:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 856 transitions. [2020-10-28 12:55:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 12:55:30,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:30,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:30,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:55:30,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:30,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1403452804, now seen corresponding path program 1 times [2020-10-28 12:55:30,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:30,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128899711] [2020-10-28 12:55:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:30,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:30,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:31,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:31,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 12:55:31,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:55:31,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1202 [2020-10-28 12:55:31,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:31,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:31,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:55:31,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:31,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:31,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:31,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:31,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:31,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:55:31,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:31,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:31,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:31,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:31,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:55:31,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 12:55:31,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:31,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:55:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:55:31,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128899711] [2020-10-28 12:55:31,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:31,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:55:31,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056914959] [2020-10-28 12:55:31,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:31,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:31,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:31,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:31,883 INFO L87 Difference]: Start difference. First operand 561 states and 856 transitions. Second operand 7 states. [2020-10-28 12:55:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:34,723 INFO L93 Difference]: Finished difference Result 1682 states and 2596 transitions. [2020-10-28 12:55:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:55:34,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-28 12:55:34,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:34,741 INFO L225 Difference]: With dead ends: 1682 [2020-10-28 12:55:34,741 INFO L226 Difference]: Without dead ends: 1127 [2020-10-28 12:55:34,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:55:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-28 12:55:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 939. [2020-10-28 12:55:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2020-10-28 12:55:34,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1320 transitions. [2020-10-28 12:55:34,829 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1320 transitions. Word has length 109 [2020-10-28 12:55:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:34,832 INFO L481 AbstractCegarLoop]: Abstraction has 939 states and 1320 transitions. [2020-10-28 12:55:34,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:34,832 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1320 transitions. [2020-10-28 12:55:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 12:55:34,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:34,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:34,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:55:34,844 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:34,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1466877572, now seen corresponding path program 1 times [2020-10-28 12:55:34,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:34,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933383958] [2020-10-28 12:55:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:35,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:35,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:35,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:55:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:55:35,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:55:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:35,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:35,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:55:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:35,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:36,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:55:36,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:55:36,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933383958] [2020-10-28 12:55:36,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:55:36,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:55:36,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326663967] [2020-10-28 12:55:36,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:36,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:36,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:36,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:36,086 INFO L87 Difference]: Start difference. First operand 939 states and 1320 transitions. Second operand 7 states. [2020-10-28 12:55:38,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:38,442 INFO L93 Difference]: Finished difference Result 2658 states and 3883 transitions. [2020-10-28 12:55:38,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:55:38,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-28 12:55:38,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:38,456 INFO L225 Difference]: With dead ends: 2658 [2020-10-28 12:55:38,456 INFO L226 Difference]: Without dead ends: 1725 [2020-10-28 12:55:38,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 12:55:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2020-10-28 12:55:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1511. [2020-10-28 12:55:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2020-10-28 12:55:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1990 transitions. [2020-10-28 12:55:38,539 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1990 transitions. Word has length 112 [2020-10-28 12:55:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:38,540 INFO L481 AbstractCegarLoop]: Abstraction has 1511 states and 1990 transitions. [2020-10-28 12:55:38,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1990 transitions. [2020-10-28 12:55:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-28 12:55:38,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:38,544 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 12:55:38,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:55:38,544 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:38,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2059673628, now seen corresponding path program 1 times [2020-10-28 12:55:38,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:38,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781553452] [2020-10-28 12:55:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:38,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:39,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:40,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:42,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-28 12:55:42,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:55:42,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3642 [2020-10-28 12:55:42,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:42,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:55:42,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:55:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:42,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:42,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:42,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:42,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:42,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:42,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:42,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:42,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:55:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:42,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:55:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:42,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:42,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:55:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 12:55:42,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:42,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:55:42,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:55:42,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781553452] [2020-10-28 12:55:42,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:42,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:42,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359948288] [2020-10-28 12:55:42,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:42,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:42,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:42,824 INFO L87 Difference]: Start difference. First operand 1511 states and 1990 transitions. Second operand 7 states. [2020-10-28 12:55:45,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:45,485 INFO L93 Difference]: Finished difference Result 3620 states and 5038 transitions. [2020-10-28 12:55:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:55:45,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2020-10-28 12:55:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:45,504 INFO L225 Difference]: With dead ends: 3620 [2020-10-28 12:55:45,504 INFO L226 Difference]: Without dead ends: 2297 [2020-10-28 12:55:45,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:55:45,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2020-10-28 12:55:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2069. [2020-10-28 12:55:45,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-28 12:55:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2654 transitions. [2020-10-28 12:55:45,618 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2654 transitions. Word has length 207 [2020-10-28 12:55:45,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:45,620 INFO L481 AbstractCegarLoop]: Abstraction has 2069 states and 2654 transitions. [2020-10-28 12:55:45,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:45,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2654 transitions. [2020-10-28 12:55:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-28 12:55:45,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:45,633 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:45,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:55:45,634 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:45,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:45,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1206128292, now seen corresponding path program 1 times [2020-10-28 12:55:45,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:45,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887328697] [2020-10-28 12:55:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:45,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:49,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3558 [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-28 12:55:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 12:55:49,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:49,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:49,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:49,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:49,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:55:49,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:49,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:49,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:55:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:55:49,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:49,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-28 12:55:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:49,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:49,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:55:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:49,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-28 12:55:49,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:49,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 12:55:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:49,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-28 12:55:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:49,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:55:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-28 12:55:49,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887328697] [2020-10-28 12:55:49,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:49,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:49,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731312978] [2020-10-28 12:55:49,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:49,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:49,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:49,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:49,990 INFO L87 Difference]: Start difference. First operand 2069 states and 2654 transitions. Second operand 7 states. [2020-10-28 12:55:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:55:53,085 INFO L93 Difference]: Finished difference Result 5426 states and 7018 transitions. [2020-10-28 12:55:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:55:53,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 330 [2020-10-28 12:55:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:55:53,112 INFO L225 Difference]: With dead ends: 5426 [2020-10-28 12:55:53,113 INFO L226 Difference]: Without dead ends: 2979 [2020-10-28 12:55:53,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 12:55:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2020-10-28 12:55:53,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2055. [2020-10-28 12:55:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2055 states. [2020-10-28 12:55:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2284 transitions. [2020-10-28 12:55:53,205 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2284 transitions. Word has length 330 [2020-10-28 12:55:53,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:55:53,206 INFO L481 AbstractCegarLoop]: Abstraction has 2055 states and 2284 transitions. [2020-10-28 12:55:53,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:55:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2284 transitions. [2020-10-28 12:55:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2020-10-28 12:55:53,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:55:53,216 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 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 12:55:53,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:55:53,216 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:55:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:55:53,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2146419368, now seen corresponding path program 1 times [2020-10-28 12:55:53,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:55:53,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495713423] [2020-10-28 12:55:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:55:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:53,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:53,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:55,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:58,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 457 [2020-10-28 12:55:58,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:55:58,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 12:55:58,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-28 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-28 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:58,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:55:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:58,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:58,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:55:58,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:55:58,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:58,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:58,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:58,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:55:58,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:55:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:58,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:58,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:55:58,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 12:55:58,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:58,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:58,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:55:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:55:58,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:55:58,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:58,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:55:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:58,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:55:58,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:58,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 12:55:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:58,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:55:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:55:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-28 12:55:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:55:59,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-28 12:55:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:59,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:59,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:55:59,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 12:55:59,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:59,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 12:55:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2020-10-28 12:55:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:55:59,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:55:59,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:55:59,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:55:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:55:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:55:59,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:55:59,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:55:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:55:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:55:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:55:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:55:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 243 proven. 152 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-10-28 12:55:59,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495713423] [2020-10-28 12:55:59,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:55:59,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:55:59,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275837738] [2020-10-28 12:55:59,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:55:59,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:55:59,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:55:59,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:55:59,834 INFO L87 Difference]: Start difference. First operand 2055 states and 2284 transitions. Second operand 7 states. [2020-10-28 12:56:01,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:01,872 INFO L93 Difference]: Finished difference Result 4292 states and 4769 transitions. [2020-10-28 12:56:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:56:01,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 439 [2020-10-28 12:56:01,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:01,886 INFO L225 Difference]: With dead ends: 4292 [2020-10-28 12:56:01,886 INFO L226 Difference]: Without dead ends: 2425 [2020-10-28 12:56:01,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:56:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2020-10-28 12:56:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2057. [2020-10-28 12:56:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2020-10-28 12:56:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2280 transitions. [2020-10-28 12:56:01,965 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2280 transitions. Word has length 439 [2020-10-28 12:56:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:01,965 INFO L481 AbstractCegarLoop]: Abstraction has 2057 states and 2280 transitions. [2020-10-28 12:56:01,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2280 transitions. [2020-10-28 12:56:01,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-10-28 12:56:01,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:01,979 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, 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, 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 12:56:01,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:56:01,980 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:01,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:01,980 INFO L82 PathProgramCache]: Analyzing trace with hash 644878220, now seen corresponding path program 1 times [2020-10-28 12:56:01,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:01,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803456668] [2020-10-28 12:56:01,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:02,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:02,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 552 [2020-10-28 12:56:07,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-28 12:56:07,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-28 12:56:07,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:07,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:56:07,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:07,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:56:07,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:07,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:07,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:56:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:56:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:07,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-28 12:56:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:07,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:07,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:56:07,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:07,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 532 proven. 154 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2020-10-28 12:56:08,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803456668] [2020-10-28 12:56:08,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:08,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:08,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172176306] [2020-10-28 12:56:08,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:08,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:08,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:08,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:08,376 INFO L87 Difference]: Start difference. First operand 2057 states and 2280 transitions. Second operand 7 states. [2020-10-28 12:56:10,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:10,226 INFO L93 Difference]: Finished difference Result 4130 states and 4613 transitions. [2020-10-28 12:56:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:56:10,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 532 [2020-10-28 12:56:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:10,238 INFO L225 Difference]: With dead ends: 4130 [2020-10-28 12:56:10,238 INFO L226 Difference]: Without dead ends: 2261 [2020-10-28 12:56:10,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 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 12:56:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2020-10-28 12:56:10,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2243. [2020-10-28 12:56:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2020-10-28 12:56:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2475 transitions. [2020-10-28 12:56:10,309 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2475 transitions. Word has length 532 [2020-10-28 12:56:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:10,310 INFO L481 AbstractCegarLoop]: Abstraction has 2243 states and 2475 transitions. [2020-10-28 12:56:10,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2475 transitions. [2020-10-28 12:56:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2020-10-28 12:56:10,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:10,331 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, 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, 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 12:56:10,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:56:10,331 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:10,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:10,332 INFO L82 PathProgramCache]: Analyzing trace with hash 307874228, now seen corresponding path program 1 times [2020-10-28 12:56:10,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:10,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099133487] [2020-10-28 12:56:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:10,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:10,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:14,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 713 [2020-10-28 12:56:15,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:56:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 586 [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:56:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:15,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:15,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:15,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:15,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:15,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:15,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:15,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:15,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:15,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:15,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:15,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:56:15,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:15,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:15,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:56:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:56:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:15,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:16,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:16,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 12:56:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:16,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-10-28 12:56:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:16,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:56:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 12:56:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:16,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:56:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1553 backedges. 602 proven. 2 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2020-10-28 12:56:16,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099133487] [2020-10-28 12:56:16,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:16,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:16,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83102967] [2020-10-28 12:56:16,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:16,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:16,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:16,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:16,557 INFO L87 Difference]: Start difference. First operand 2243 states and 2475 transitions. Second operand 7 states. [2020-10-28 12:56:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:18,675 INFO L93 Difference]: Finished difference Result 4510 states and 5009 transitions. [2020-10-28 12:56:18,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:56:18,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 691 [2020-10-28 12:56:18,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:18,688 INFO L225 Difference]: With dead ends: 4510 [2020-10-28 12:56:18,688 INFO L226 Difference]: Without dead ends: 2261 [2020-10-28 12:56:18,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2020-10-28 12:56:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2239. [2020-10-28 12:56:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-10-28 12:56:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2431 transitions. [2020-10-28 12:56:18,758 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2431 transitions. Word has length 691 [2020-10-28 12:56:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:18,759 INFO L481 AbstractCegarLoop]: Abstraction has 2239 states and 2431 transitions. [2020-10-28 12:56:18,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:18,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2431 transitions. [2020-10-28 12:56:18,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2020-10-28 12:56:18,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:18,789 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, 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, 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 12:56:18,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:56:18,789 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1924622760, now seen corresponding path program 1 times [2020-10-28 12:56:18,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:18,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337707084] [2020-10-28 12:56:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:19,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:19,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:19,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:21,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 810 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:56:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:24,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:24,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:56:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:56:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:24,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:24,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:56:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:24,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:56:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 706 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-28 12:56:25,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337707084] [2020-10-28 12:56:25,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:25,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:25,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658836547] [2020-10-28 12:56:25,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:25,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:25,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:25,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:25,386 INFO L87 Difference]: Start difference. First operand 2239 states and 2431 transitions. Second operand 7 states. [2020-10-28 12:56:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:27,366 INFO L93 Difference]: Finished difference Result 5052 states and 5641 transitions. [2020-10-28 12:56:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:56:27,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 788 [2020-10-28 12:56:27,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:27,388 INFO L225 Difference]: With dead ends: 5052 [2020-10-28 12:56:27,388 INFO L226 Difference]: Without dead ends: 3001 [2020-10-28 12:56:27,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:56:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2020-10-28 12:56:27,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2985. [2020-10-28 12:56:27,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2985 states. [2020-10-28 12:56:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 3329 transitions. [2020-10-28 12:56:27,483 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 3329 transitions. Word has length 788 [2020-10-28 12:56:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:27,484 INFO L481 AbstractCegarLoop]: Abstraction has 2985 states and 3329 transitions. [2020-10-28 12:56:27,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 3329 transitions. [2020-10-28 12:56:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2020-10-28 12:56:27,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:27,495 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, 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, 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 12:56:27,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:56:27,495 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:27,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:27,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1436727812, now seen corresponding path program 1 times [2020-10-28 12:56:27,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:27,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847674789] [2020-10-28 12:56:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:28,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:28,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:30,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:32,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 888 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:56:32,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:56:32,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:32,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:32,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:32,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:32,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:56:32,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:32,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:56:32,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:32,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:32,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:32,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:56:32,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:32,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:32,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:32,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:32,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:32,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:32,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:32,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:32,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:32,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:32,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:33,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:33,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:33,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:56:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:33,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:56:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:33,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:33,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:33,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:56:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:33,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:56:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:33,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:56:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:33,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:33,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:56:33,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:33,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:56:33,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:33,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:56:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:56:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2207 backedges. 563 proven. 146 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2020-10-28 12:56:33,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847674789] [2020-10-28 12:56:33,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:33,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:33,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556237069] [2020-10-28 12:56:33,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:33,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:33,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:33,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:33,919 INFO L87 Difference]: Start difference. First operand 2985 states and 3329 transitions. Second operand 7 states. [2020-10-28 12:56:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:35,889 INFO L93 Difference]: Finished difference Result 6898 states and 7897 transitions. [2020-10-28 12:56:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:56:35,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 864 [2020-10-28 12:56:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:35,915 INFO L225 Difference]: With dead ends: 6898 [2020-10-28 12:56:35,915 INFO L226 Difference]: Without dead ends: 4101 [2020-10-28 12:56:35,923 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 12:56:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2020-10-28 12:56:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 3727. [2020-10-28 12:56:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3727 states. [2020-10-28 12:56:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4144 transitions. [2020-10-28 12:56:36,028 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4144 transitions. Word has length 864 [2020-10-28 12:56:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:36,029 INFO L481 AbstractCegarLoop]: Abstraction has 3727 states and 4144 transitions. [2020-10-28 12:56:36,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4144 transitions. [2020-10-28 12:56:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2020-10-28 12:56:36,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:36,042 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, 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, 7, 7, 7, 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, 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 12:56:36,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:56:36,042 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:36,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:36,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1926827144, now seen corresponding path program 1 times [2020-10-28 12:56:36,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:36,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28098631] [2020-10-28 12:56:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:36,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:36,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:38,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 918 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:41,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:41,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:41,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:56:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:56:41,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:56:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:56:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:41,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:41,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:56:41,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:41,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:41,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:41,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:56:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:41,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:42,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:56:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:42,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:42,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:42,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:42,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:56:42,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:42,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:42,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2287 backedges. 597 proven. 332 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2020-10-28 12:56:42,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28098631] [2020-10-28 12:56:42,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:42,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:56:42,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134210341] [2020-10-28 12:56:42,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:56:42,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:42,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:56:42,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:56:42,658 INFO L87 Difference]: Start difference. First operand 3727 states and 4144 transitions. Second operand 7 states. [2020-10-28 12:56:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:44,476 INFO L93 Difference]: Finished difference Result 8196 states and 9282 transitions. [2020-10-28 12:56:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:56:44,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 894 [2020-10-28 12:56:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:44,512 INFO L225 Difference]: With dead ends: 8196 [2020-10-28 12:56:44,512 INFO L226 Difference]: Without dead ends: 4657 [2020-10-28 12:56:44,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:56:44,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4657 states. [2020-10-28 12:56:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4657 to 4651. [2020-10-28 12:56:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4651 states. [2020-10-28 12:56:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 5189 transitions. [2020-10-28 12:56:44,644 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 5189 transitions. Word has length 894 [2020-10-28 12:56:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:44,646 INFO L481 AbstractCegarLoop]: Abstraction has 4651 states and 5189 transitions. [2020-10-28 12:56:44,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:56:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 5189 transitions. [2020-10-28 12:56:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2020-10-28 12:56:44,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:44,661 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, 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, 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, 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 12:56:44,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:56:44,661 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:44,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:44,662 INFO L82 PathProgramCache]: Analyzing trace with hash 304275972, now seen corresponding path program 1 times [2020-10-28 12:56:44,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:44,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788523322] [2020-10-28 12:56:44,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:44,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:45,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:49,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:49,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 997 [2020-10-28 12:56:49,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:56:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-28 12:56:49,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:49,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:49,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:49,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 686 [2020-10-28 12:56:49,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:56:49,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:56:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:50,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:56:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:56:50,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:56:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:56:50,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:50,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:56:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:56:50,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:56:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:50,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:50,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:56:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:50,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 12:56:50,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-28 12:56:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:50,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:56:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:56:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-28 12:56:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 676 [2020-10-28 12:56:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-28 12:56:51,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:56:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:51,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-28 12:56:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:51,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:51,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:56:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:56:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2567 backedges. 917 proven. 85 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2020-10-28 12:56:52,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788523322] [2020-10-28 12:56:52,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:56:52,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:56:52,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569973609] [2020-10-28 12:56:52,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:56:52,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:56:52,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:56:52,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:56:52,172 INFO L87 Difference]: Start difference. First operand 4651 states and 5189 transitions. Second operand 8 states. [2020-10-28 12:56:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:56:55,087 INFO L93 Difference]: Finished difference Result 10034 states and 11386 transitions. [2020-10-28 12:56:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:56:55,092 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 973 [2020-10-28 12:56:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:56:55,112 INFO L225 Difference]: With dead ends: 10034 [2020-10-28 12:56:55,112 INFO L226 Difference]: Without dead ends: 5571 [2020-10-28 12:56:55,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:56:55,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2020-10-28 12:56:55,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 4831. [2020-10-28 12:56:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4831 states. [2020-10-28 12:56:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 5350 transitions. [2020-10-28 12:56:55,241 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 5350 transitions. Word has length 973 [2020-10-28 12:56:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:56:55,243 INFO L481 AbstractCegarLoop]: Abstraction has 4831 states and 5350 transitions. [2020-10-28 12:56:55,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:56:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 5350 transitions. [2020-10-28 12:56:55,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1043 [2020-10-28 12:56:55,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:56:55,259 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 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, 1] [2020-10-28 12:56:55,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:56:55,260 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:56:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:56:55,261 INFO L82 PathProgramCache]: Analyzing trace with hash 816765924, now seen corresponding path program 1 times [2020-10-28 12:56:55,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:56:55,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743206910] [2020-10-28 12:56:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:56:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:56:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:56:59,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1070 [2020-10-28 12:57:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 952 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:57:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:57:00,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:00,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:00,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:00,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:01,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:57:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:57:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:01,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:57:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 891 proven. 2 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2020-10-28 12:57:01,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743206910] [2020-10-28 12:57:01,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:01,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:01,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88650479] [2020-10-28 12:57:01,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:01,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:01,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:01,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:01,994 INFO L87 Difference]: Start difference. First operand 4831 states and 5350 transitions. Second operand 7 states. [2020-10-28 12:57:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:04,293 INFO L93 Difference]: Finished difference Result 9670 states and 10748 transitions. [2020-10-28 12:57:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:57:04,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1042 [2020-10-28 12:57:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:04,314 INFO L225 Difference]: With dead ends: 9670 [2020-10-28 12:57:04,314 INFO L226 Difference]: Without dead ends: 5027 [2020-10-28 12:57:04,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:57:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2020-10-28 12:57:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4831. [2020-10-28 12:57:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4831 states. [2020-10-28 12:57:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 5323 transitions. [2020-10-28 12:57:04,424 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 5323 transitions. Word has length 1042 [2020-10-28 12:57:04,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:04,426 INFO L481 AbstractCegarLoop]: Abstraction has 4831 states and 5323 transitions. [2020-10-28 12:57:04,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:04,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 5323 transitions. [2020-10-28 12:57:04,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2020-10-28 12:57:04,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:04,443 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 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, 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, 1] [2020-10-28 12:57:04,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:57:04,443 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:04,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:04,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1293940396, now seen corresponding path program 1 times [2020-10-28 12:57:04,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:04,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817022941] [2020-10-28 12:57:04,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:04,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:05,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:09,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1077 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:57:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:09,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:09,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:09,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:09,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:09,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:09,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:09,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:09,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:09,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:09,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:09,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:10,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:10,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:10,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:10,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:57:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:10,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-28 12:57:10,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:57:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:10,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:57:10,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:57:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-28 12:57:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:10,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:10,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3505 backedges. 1490 proven. 225 refuted. 0 times theorem prover too weak. 1790 trivial. 0 not checked. [2020-10-28 12:57:11,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817022941] [2020-10-28 12:57:11,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:11,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:57:11,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102038307] [2020-10-28 12:57:11,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:57:11,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:11,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:57:11,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:57:11,464 INFO L87 Difference]: Start difference. First operand 4831 states and 5323 transitions. Second operand 10 states. [2020-10-28 12:57:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:14,987 INFO L93 Difference]: Finished difference Result 10786 states and 11941 transitions. [2020-10-28 12:57:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 12:57:14,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1049 [2020-10-28 12:57:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:15,008 INFO L225 Difference]: With dead ends: 10786 [2020-10-28 12:57:15,008 INFO L226 Difference]: Without dead ends: 6143 [2020-10-28 12:57:15,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-28 12:57:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6143 states. [2020-10-28 12:57:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6143 to 5757. [2020-10-28 12:57:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5757 states. [2020-10-28 12:57:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 6373 transitions. [2020-10-28 12:57:15,150 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 6373 transitions. Word has length 1049 [2020-10-28 12:57:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:15,151 INFO L481 AbstractCegarLoop]: Abstraction has 5757 states and 6373 transitions. [2020-10-28 12:57:15,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:57:15,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 6373 transitions. [2020-10-28 12:57:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2020-10-28 12:57:15,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:15,177 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 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 12:57:15,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:57:15,177 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:15,178 INFO L82 PathProgramCache]: Analyzing trace with hash 401338848, now seen corresponding path program 1 times [2020-10-28 12:57:15,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:15,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537284941] [2020-10-28 12:57:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:15,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:18,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1352 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:57:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:20,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:20,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:20,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:20,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:21,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:21,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:21,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:21,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:21,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 12:57:21,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:21,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:21,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:21,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:21,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:21,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:21,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:21,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:21,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:57:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:21,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:21,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-28 12:57:21,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5079 backedges. 1434 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-28 12:57:22,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537284941] [2020-10-28 12:57:22,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:22,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:22,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924291864] [2020-10-28 12:57:22,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:22,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:22,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:22,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:22,481 INFO L87 Difference]: Start difference. First operand 5757 states and 6373 transitions. Second operand 7 states. [2020-10-28 12:57:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:24,075 INFO L93 Difference]: Finished difference Result 12273 states and 13635 transitions. [2020-10-28 12:57:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:57:24,076 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1322 [2020-10-28 12:57:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:24,099 INFO L225 Difference]: With dead ends: 12273 [2020-10-28 12:57:24,100 INFO L226 Difference]: Without dead ends: 6704 [2020-10-28 12:57:24,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 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 12:57:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2020-10-28 12:57:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6679. [2020-10-28 12:57:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6679 states. [2020-10-28 12:57:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 7369 transitions. [2020-10-28 12:57:24,249 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 7369 transitions. Word has length 1322 [2020-10-28 12:57:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:24,250 INFO L481 AbstractCegarLoop]: Abstraction has 6679 states and 7369 transitions. [2020-10-28 12:57:24,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 7369 transitions. [2020-10-28 12:57:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2020-10-28 12:57:24,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:24,277 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 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, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-28 12:57:24,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:57:24,277 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:24,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:24,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1318622268, now seen corresponding path program 1 times [2020-10-28 12:57:24,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:24,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928725414] [2020-10-28 12:57:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:24,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:25,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1441 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2349 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:26,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1399 [2020-10-28 12:57:26,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 12:57:26,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:27,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:27,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:57:27,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:27,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:27,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:27,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:27,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:27,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:27,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:27,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:27,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 12:57:27,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:27,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:57:27,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5913 backedges. 371 proven. 11 refuted. 0 times theorem prover too weak. 5531 trivial. 0 not checked. [2020-10-28 12:57:28,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928725414] [2020-10-28 12:57:28,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:28,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:57:28,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369081435] [2020-10-28 12:57:28,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:57:28,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:28,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:57:28,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:57:28,991 INFO L87 Difference]: Start difference. First operand 6679 states and 7369 transitions. Second operand 5 states. [2020-10-28 12:57:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:30,747 INFO L93 Difference]: Finished difference Result 14088 states and 15586 transitions. [2020-10-28 12:57:30,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:57:30,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1409 [2020-10-28 12:57:30,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:30,780 INFO L225 Difference]: With dead ends: 14088 [2020-10-28 12:57:30,780 INFO L226 Difference]: Without dead ends: 5933 [2020-10-28 12:57:30,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:57:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2020-10-28 12:57:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5929. [2020-10-28 12:57:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5929 states. [2020-10-28 12:57:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 6384 transitions. [2020-10-28 12:57:30,907 INFO L78 Accepts]: Start accepts. Automaton has 5929 states and 6384 transitions. Word has length 1409 [2020-10-28 12:57:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:30,908 INFO L481 AbstractCegarLoop]: Abstraction has 5929 states and 6384 transitions. [2020-10-28 12:57:30,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:57:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5929 states and 6384 transitions. [2020-10-28 12:57:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1618 [2020-10-28 12:57:30,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:30,941 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 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, 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, 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] [2020-10-28 12:57:30,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:57:30,942 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:30,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash 401638388, now seen corresponding path program 1 times [2020-10-28 12:57:30,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:30,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634644703] [2020-10-28 12:57:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:31,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:34,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1651 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4192 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-28 12:57:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:35,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:35,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:35,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:35,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:35,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:35,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:35,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:35,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:36,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:36,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:36,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:36,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:36,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:36,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:36,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:57:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:36,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:57:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:36,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:36,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-28 12:57:36,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 7592 backedges. 1746 proven. 42 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2020-10-28 12:57:37,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634644703] [2020-10-28 12:57:37,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:37,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:57:37,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673752892] [2020-10-28 12:57:37,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:57:37,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:37,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:57:37,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:57:37,868 INFO L87 Difference]: Start difference. First operand 5929 states and 6384 transitions. Second operand 6 states. [2020-10-28 12:57:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:39,603 INFO L93 Difference]: Finished difference Result 13348 states and 14530 transitions. [2020-10-28 12:57:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:57:39,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1617 [2020-10-28 12:57:39,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:39,625 INFO L225 Difference]: With dead ends: 13348 [2020-10-28 12:57:39,626 INFO L226 Difference]: Without dead ends: 7607 [2020-10-28 12:57:39,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:57:39,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2020-10-28 12:57:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 7579. [2020-10-28 12:57:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7579 states. [2020-10-28 12:57:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 8169 transitions. [2020-10-28 12:57:39,779 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 8169 transitions. Word has length 1617 [2020-10-28 12:57:39,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:39,780 INFO L481 AbstractCegarLoop]: Abstraction has 7579 states and 8169 transitions. [2020-10-28 12:57:39,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:57:39,780 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 8169 transitions. [2020-10-28 12:57:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2020-10-28 12:57:39,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:39,832 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 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, 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, 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] [2020-10-28 12:57:39,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:57:39,833 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:39,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:39,834 INFO L82 PathProgramCache]: Analyzing trace with hash -2144633652, now seen corresponding path program 1 times [2020-10-28 12:57:39,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:39,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708740778] [2020-10-28 12:57:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:40,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1756 [2020-10-28 12:57:45,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:57:45,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5147 [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:57:45,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:45,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:45,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:45,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:45,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:45,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:46,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:46,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:57:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-28 12:57:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 12:57:46,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-28 12:57:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:46,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1513 [2020-10-28 12:57:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:46,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:46,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-28 12:57:46,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 8817 backedges. 1579 proven. 104 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2020-10-28 12:57:48,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708740778] [2020-10-28 12:57:48,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:57:48,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:57:48,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938770520] [2020-10-28 12:57:48,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:57:48,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:57:48,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:57:48,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:57:48,355 INFO L87 Difference]: Start difference. First operand 7579 states and 8169 transitions. Second operand 7 states. [2020-10-28 12:57:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:57:50,426 INFO L93 Difference]: Finished difference Result 14812 states and 15985 transitions. [2020-10-28 12:57:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:57:50,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1720 [2020-10-28 12:57:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:57:50,448 INFO L225 Difference]: With dead ends: 14812 [2020-10-28 12:57:50,448 INFO L226 Difference]: Without dead ends: 5395 [2020-10-28 12:57:50,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:57:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2020-10-28 12:57:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 5171. [2020-10-28 12:57:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5171 states. [2020-10-28 12:57:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 5376 transitions. [2020-10-28 12:57:50,566 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 5376 transitions. Word has length 1720 [2020-10-28 12:57:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:57:50,568 INFO L481 AbstractCegarLoop]: Abstraction has 5171 states and 5376 transitions. [2020-10-28 12:57:50,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:57:50,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 5376 transitions. [2020-10-28 12:57:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1796 [2020-10-28 12:57:50,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:57:50,609 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 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, 4, 3, 3, 2, 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 12:57:50,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:57:50,609 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:57:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:57:50,610 INFO L82 PathProgramCache]: Analyzing trace with hash -479591796, now seen corresponding path program 1 times [2020-10-28 12:57:50,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:57:50,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990455320] [2020-10-28 12:57:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:57:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:51,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:51,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:52,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:53,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1831 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5263 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:57:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 299 [2020-10-28 12:57:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:57:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:57:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:57:56,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:57:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:57:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:57:56,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:57:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:57:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:57:56,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:57:56,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:57:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:57:56,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:57:56,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:57:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:56,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:57:56,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:57:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:56,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:57:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:56,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:57:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:57:57,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:57:57,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:57:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:57:57,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:57:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:57:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:57:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:57:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-28 12:57:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:57:57,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1588 [2020-10-28 12:57:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:57:57,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:57:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:57:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:57:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:57:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:57:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:57:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:57:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:57:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-28 12:57:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:57:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9190 backedges. 2541 proven. 673 refuted. 0 times theorem prover too weak. 5976 trivial. 0 not checked. [2020-10-28 12:58:00,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990455320] [2020-10-28 12:58:00,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:58:00,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:58:00,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296854954] [2020-10-28 12:58:00,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:58:00,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:58:00,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:58:00,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:58:00,044 INFO L87 Difference]: Start difference. First operand 5171 states and 5376 transitions. Second operand 8 states. [2020-10-28 12:58:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:58:02,428 INFO L93 Difference]: Finished difference Result 9972 states and 10369 transitions. [2020-10-28 12:58:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:58:02,428 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1795 [2020-10-28 12:58:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:58:02,441 INFO L225 Difference]: With dead ends: 9972 [2020-10-28 12:58:02,441 INFO L226 Difference]: Without dead ends: 4991 [2020-10-28 12:58:02,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:58:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2020-10-28 12:58:02,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4803. [2020-10-28 12:58:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4803 states. [2020-10-28 12:58:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 4974 transitions. [2020-10-28 12:58:02,535 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 4974 transitions. Word has length 1795 [2020-10-28 12:58:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:58:02,537 INFO L481 AbstractCegarLoop]: Abstraction has 4803 states and 4974 transitions. [2020-10-28 12:58:02,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:58:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 4974 transitions. [2020-10-28 12:58:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2020-10-28 12:58:02,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:58:02,586 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2020-10-28 12:58:02,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:58:02,587 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:58:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:58:02,588 INFO L82 PathProgramCache]: Analyzing trace with hash 476160312, now seen corresponding path program 1 times [2020-10-28 12:58:02,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:58:02,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130628528] [2020-10-28 12:58:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:58:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:03,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:04,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:06,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2169 [2020-10-28 12:58:08,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:58:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1317 [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 634 [2020-10-28 12:58:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:58:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:58:08,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:58:08,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:58:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:58:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:58:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:58:08,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:58:08,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:58:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:58:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:58:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:58:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:58:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:58:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:08,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:58:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:58:08,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:58:08,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:58:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:08,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:08,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:08,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:58:08,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:08,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:58:08,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:08,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:08,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:08,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:58:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-28 12:58:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:58:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-28 12:58:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:58:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:58:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:58:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:58:09,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:58:09,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-28 12:58:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:09,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:09,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:58:09,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:09,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1741 [2020-10-28 12:58:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:58:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:58:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:58:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:10,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1920 [2020-10-28 12:58:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:58:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:58:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:58:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-28 12:58:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:58:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:58:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 13561 backedges. 2517 proven. 190 refuted. 0 times theorem prover too weak. 10854 trivial. 0 not checked. [2020-10-28 12:58:12,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130628528] [2020-10-28 12:58:12,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:58:12,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:58:12,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291005523] [2020-10-28 12:58:12,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:58:12,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:58:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:58:12,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:58:12,959 INFO L87 Difference]: Start difference. First operand 4803 states and 4974 transitions. Second operand 8 states. [2020-10-28 12:58:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:58:16,175 INFO L93 Difference]: Finished difference Result 8683 states and 8961 transitions. [2020-10-28 12:58:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 12:58:16,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 2127 [2020-10-28 12:58:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:58:16,179 INFO L225 Difference]: With dead ends: 8683 [2020-10-28 12:58:16,179 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:58:16,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 12:58:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:58:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:58:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:58:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:58:16,193 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2127 [2020-10-28 12:58:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:58:16,194 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:58:16,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:58:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:58:16,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:58:16,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:58:16,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:58:17,021 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 266 [2020-10-28 12:58:18,213 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 266 [2020-10-28 12:58:19,613 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 234 DAG size of output: 73 [2020-10-28 12:58:19,725 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 28 [2020-10-28 12:58:22,502 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 299 DAG size of output: 99 [2020-10-28 12:58:23,861 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 234 DAG size of output: 73 [2020-10-28 12:58:24,873 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2020-10-28 12:58:24,879 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:58:24,879 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:58:24,880 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 12:58:24,880 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:58:24,880 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:58:24,881 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:58:24,882 INFO L270 CegarLoopResult]: At program point L105(line 105) the Hoare annotation is: (let ((.cse1 (= 9 |old(~a21~0)|))) (let ((.cse7 (not (= 7 |old(~a21~0)|))) (.cse2 (not (= 7 |old(~a15~0)|))) (.cse10 (not (<= 19 |old(~a12~0)|))) (.cse6 (not (= 8 |old(~a15~0)|))) (.cse4 (not (<= 81 |old(~a12~0)|))) (.cse5 (not .cse1)) (.cse9 (not (<= |old(~a12~0)| 10))) (.cse0 (= |old(~a15~0)| |old(~a21~0)|)) (.cse3 (not (<= 9 |old(~a15~0)|))) (.cse11 (not (= 8 |old(~a21~0)|))) (.cse8 (not (= 5 |old(~a15~0)|))) (.cse13 (not (= 6 |old(~a15~0)|))) (.cse12 (not (<= |old(~a12~0)| 73282)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 .cse0 (not (<= |old(~a12~0)| 2))) (or .cse7 .cse8) (or .cse9 .cse0 .cse1 .cse8) (or .cse10 .cse6 (not (<= |old(~a12~0)| 76))) (or .cse10 .cse2) (or .cse10 .cse3 .cse0 .cse1) (or .cse7 .cse2) (or .cse10 .cse6 .cse0 .cse1) (or .cse10 .cse11 .cse12 .cse6) (or .cse13 .cse4 .cse5) (or (not (= 9 |old(~a15~0)|)) .cse9 .cse0 .cse1) (or .cse3 .cse11 (not (<= (+ |old(~a12~0)| 526767) 0))) (or (not (<= |old(~a24~0)| 1)) .cse8) (or .cse13 .cse12)))) [2020-10-28 12:58:24,882 INFO L274 CegarLoopResult]: For program point L105-1(line 105) no Hoare annotation was computed. [2020-10-28 12:58:24,882 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:58:24,882 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:58:24,882 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:58:24,882 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:58:24,883 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:58:24,884 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:58:24,885 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:58:24,886 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,887 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:58:24,888 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,889 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse25 (= ~a15~0 8)) (.cse14 (= 9 |old(~a21~0)|)) (.cse10 (= 5 ~a15~0)) (.cse27 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a24~0 |old(~a24~0)|)) (.cse22 (= ~a21~0 9)) (.cse3 (= ~a12~0 |old(~a12~0)|)) (.cse19 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (not (= 7 |old(~a21~0)|))) (.cse4 (= 7 ~a21~0)) (.cse7 (not (<= 81 |old(~a12~0)|))) (.cse8 (and .cse2 .cse22 .cse3 .cse19)) (.cse12 (not (<= |old(~a12~0)| 10))) (.cse15 (and .cse10 .cse2 .cse27 .cse3)) (.cse11 (not (= 5 |old(~a15~0)|))) (.cse9 (not .cse14)) (.cse20 (not (= 8 |old(~a21~0)|))) (.cse18 (= ~a21~0 8)) (.cse23 (not (= 6 |old(~a15~0)|))) (.cse26 (not (<= |old(~a12~0)| 73282))) (.cse1 (= 7 ~a15~0)) (.cse5 (not (= 7 |old(~a15~0)|))) (.cse16 (not (= 8 |old(~a15~0)|))) (.cse17 (and .cse2 .cse27 .cse25 .cse3)) (.cse21 (not (<= 19 |old(~a12~0)|))) (.cse6 (not (<= 9 |old(~a15~0)|))) (.cse24 (and .cse2 .cse27 .cse3 .cse19)) (.cse13 (= |old(~a15~0)| |old(~a21~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5) (or .cse6 .cse7 .cse8 .cse9) (or .cse0 (and .cse10 .cse2 .cse3 .cse4) .cse11) (or .cse12 .cse13 .cse14 .cse15 .cse11) (or .cse16 .cse13 .cse17 (not (<= |old(~a12~0)| 2))) (or (and .cse2 .cse18 .cse3 .cse19) .cse6 .cse20 (not (<= (+ |old(~a12~0)| 526767) 0))) (or .cse21 (and .cse1 .cse2 .cse22 .cse3) .cse9 .cse5) (or .cse23 .cse7 .cse9 .cse8) (or .cse24 (not (= 9 |old(~a15~0)|)) .cse12 .cse13 .cse14) (or (not (<= |old(~a24~0)| 1)) .cse15 .cse11) (or .cse21 .cse16 .cse9 (and .cse2 .cse25 .cse22 .cse3) (not (<= |old(~a12~0)| 76))) (or .cse21 .cse20 .cse26 .cse16 (and .cse2 .cse25 .cse18 .cse3)) (or .cse23 .cse24 .cse26) (or .cse13 .cse14 (and .cse1 .cse2 .cse27 .cse3) .cse5) (or .cse21 .cse16 .cse13 .cse14 .cse17) (or .cse21 .cse6 .cse24 .cse13 .cse14)))) [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:58:24,890 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:58:24,891 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:58:24,892 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,893 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,894 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:58:24,895 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:58:24,896 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:58:24,897 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:58:24,898 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:58:24,899 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:58:24,900 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:58:24,901 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:58:24,902 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= ~a24~0 1) (= ~a15~0 8) (= 7 ~a21~0)) [2020-10-28 12:58:24,902 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:58:24,902 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:58:24,903 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 12:58:24,903 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse1 (= ~a21~0 9))) (let ((.cse0 (<= 81 ~a12~0)) (.cse4 (= ~a15~0 |old(~a15~0)|)) (.cse8 (= 5 ~a15~0)) (.cse9 (<= ~a12~0 10)) (.cse5 (<= 9 ~a15~0)) (.cse10 (= ~a21~0 8)) (.cse12 (= 7 ~a15~0)) (.cse6 (not .cse1)) (.cse7 (not (= ~a21~0 ~a15~0))) (.cse3 (<= 19 ~a12~0)) (.cse2 (= ~a15~0 6)) (.cse11 (<= ~a12~0 73282))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a24~0)| 1)) (and .cse3 .cse4 (<= ~a12~0 76)) (and .cse5 .cse6 .cse7 .cse3) (and .cse8 (= 7 ~a21~0)) (and .cse8 .cse9 .cse6 .cse7) (and (<= ~a12~0 2) .cse7 .cse4) (not (= 8 |old(~a15~0)|)) (and .cse0 .cse5 .cse1) (and .cse10 .cse11 .cse3 .cse4) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse12 .cse6) (and .cse8 (<= ~a24~0 1)) (not (= 7 |old(~a21~0)|)) (and .cse9 .cse7 (= ~a15~0 9)) (and .cse5 .cse10 (<= (+ ~a12~0 526767) 0)) (and .cse12 .cse3) (and (= ~a15~0 8) .cse6 .cse7 .cse3) (and .cse2 .cse11)))) [2020-10-28 12:58:24,903 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:58:24,903 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:58:24,903 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:58:24,904 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse1 (= ~a21~0 9))) (let ((.cse0 (<= 81 ~a12~0)) (.cse4 (= ~a15~0 |old(~a15~0)|)) (.cse8 (= 5 ~a15~0)) (.cse9 (<= ~a12~0 10)) (.cse5 (<= 9 ~a15~0)) (.cse10 (= ~a21~0 8)) (.cse12 (= 7 ~a15~0)) (.cse6 (not .cse1)) (.cse7 (not (= ~a21~0 ~a15~0))) (.cse3 (<= 19 ~a12~0)) (.cse2 (= ~a15~0 6)) (.cse11 (<= ~a12~0 73282))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a24~0)| 1)) (and .cse3 .cse4 (<= ~a12~0 76)) (and .cse5 .cse6 .cse7 .cse3) (and .cse8 (= 7 ~a21~0)) (and .cse8 .cse9 .cse6 .cse7) (and (<= ~a12~0 2) .cse7 .cse4) (not (= 8 |old(~a15~0)|)) (and .cse0 .cse5 .cse1) (and .cse10 .cse11 .cse3 .cse4) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse12 .cse6) (and .cse8 (<= ~a24~0 1)) (not (= 7 |old(~a21~0)|)) (and .cse9 .cse7 (= ~a15~0 9)) (and .cse5 .cse10 (<= (+ ~a12~0 526767) 0)) (and .cse12 .cse3) (and (= ~a15~0 8) .cse6 .cse7 .cse3) (and .cse2 .cse11)))) [2020-10-28 12:58:24,904 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:58:24,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:58:24 BoogieIcfgContainer [2020-10-28 12:58:24,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:58:24,929 INFO L168 Benchmark]: Toolchain (without parser) took 182412.52 ms. Allocated memory was 151.0 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 123.6 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2020-10-28 12:58:24,929 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:58:24,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.53 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 127.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:58:24,931 INFO L168 Benchmark]: Boogie Preprocessor took 118.06 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 122.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:58:24,931 INFO L168 Benchmark]: RCFGBuilder took 1619.87 ms. Allocated memory was 151.0 MB in the beginning and 201.3 MB in the end (delta: 50.3 MB). Free memory was 122.4 MB in the beginning and 130.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 8.0 GB. [2020-10-28 12:58:24,932 INFO L168 Benchmark]: TraceAbstraction took 179861.65 ms. Allocated memory was 201.3 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 129.8 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.7 GB. Max. memory is 8.0 GB. [2020-10-28 12:58:24,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 436.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 798.53 ms. Allocated memory is still 151.0 MB. Free memory was 123.0 MB in the beginning and 127.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 118.06 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 122.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1619.87 ms. Allocated memory was 151.0 MB in the beginning and 201.3 MB in the end (delta: 50.3 MB). Free memory was 122.4 MB in the beginning and 130.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 179861.65 ms. Allocated memory was 201.3 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 129.8 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 1.7 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: (((((((((((((((((((81 <= a12 && a21 == 9) && a15 == 6) || !(\old(a24) <= 1)) || ((19 <= a12 && a15 == \old(a15)) && a12 <= 76)) || (((9 <= a15 && !(a21 == 9)) && !(a21 == a15)) && 19 <= a12)) || (5 == a15 && 7 == a21)) || (((5 == a15 && a12 <= 10) && !(a21 == 9)) && !(a21 == a15))) || ((a12 <= 2 && !(a21 == a15)) && a15 == \old(a15))) || !(8 == \old(a15))) || ((81 <= a12 && 9 <= a15) && a21 == 9)) || (((a21 == 8 && a12 <= 73282) && 19 <= a12) && a15 == \old(a15))) || !(\old(a12) + 49 <= 0)) || (7 == a15 && !(a21 == 9))) || (5 == a15 && a24 <= 1)) || !(7 == \old(a21))) || ((a12 <= 10 && !(a21 == a15)) && a15 == 9)) || ((9 <= a15 && a21 == 8) && a12 + 526767 <= 0)) || (7 == a15 && 19 <= a12)) || (((a15 == 8 && !(a21 == 9)) && !(a21 == a15)) && 19 <= a12)) || (a15 == 6 && a12 <= 73282) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 171.0s, OverallIterations: 20, TraceHistogramMax: 17, AutomataDifference: 48.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 564 SDtfs, 12325 SDslu, 748 SDs, 0 SdLazy, 23990 SolverSat, 2586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 599 GetRequests, 402 SyntacticMatches, 4 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7579occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 4153 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 848 PreInvPairs, 942 NumberOfFragments, 1080 HoareAnnotationTreeSize, 848 FomulaSimplifications, 904893 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 56745 FormulaSimplificationTreeSizeReductionInter, 6.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 102.4s InterpolantComputationTime, 18060 NumberOfCodeBlocks, 18060 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 18040 ConstructedInterpolants, 0 QuantifiedInterpolants, 38550930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 67382/69649 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...