/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:33:00,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:33:00,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:33:00,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:33:00,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:33:00,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:33:00,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:33:00,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:33:00,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:33:00,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:33:00,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:33:00,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:33:00,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:33:00,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:33:00,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:33:00,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:33:00,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:33:00,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:33:00,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:33:00,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:33:00,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:33:00,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:33:00,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:33:00,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:33:00,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:33:00,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:33:00,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:33:00,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:33:00,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:33:00,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-29 07:33:00,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:33:00,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:33:00,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:33:00,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 07:33:00,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:33:00,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:33:00,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:33:00,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:33:00,297 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:33:00,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:33:00,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:33:00,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:33:00,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:33:00,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:33:00,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:33:00,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:33:00,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:33:00,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:33:00,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:33:00,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:33:00,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:33:00,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:33:00,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:33:00,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:33:00,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:33:00,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:33:00,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:33:00,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:33:00,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:33:00,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:33:00,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:33:00,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:33:00,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:33:00,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:33:00,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:33:00,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:33:00,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:33:00,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:33:00,733 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:33:00,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label33.c [2020-10-29 07:33:00,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfcaa9196/37badd9a7aff4253a896c5933a3b7739/FLAGfc0f5eb7a [2020-10-29 07:33:01,562 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:33:01,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label33.c [2020-10-29 07:33:01,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfcaa9196/37badd9a7aff4253a896c5933a3b7739/FLAGfc0f5eb7a [2020-10-29 07:33:01,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfcaa9196/37badd9a7aff4253a896c5933a3b7739 [2020-10-29 07:33:01,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:33:01,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:33:01,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:33:01,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:33:01,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:33:01,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:33:01" (1/1) ... [2020-10-29 07:33:01,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150a5f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:01, skipping insertion in model container [2020-10-29 07:33:01,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:33:01" (1/1) ... [2020-10-29 07:33:01,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:33:01,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:33:02,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:33:02,358 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:33:02,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:33:02,595 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:33:02,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02 WrapperNode [2020-10-29 07:33:02,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:33:02,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:33:02,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:33:02,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:33:02,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... [2020-10-29 07:33:02,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:33:02,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:33:02,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:33:02,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:33:02,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:33:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:33:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:33:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:33:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:33:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:33:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:33:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:33:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:33:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:33:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:33:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:33:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:33:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:33:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:33:04,692 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:33:04,692 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:33:04,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:33:04 BoogieIcfgContainer [2020-10-29 07:33:04,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:33:04,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:33:04,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:33:04,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:33:04,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:33:01" (1/3) ... [2020-10-29 07:33:04,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a1a586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:33:04, skipping insertion in model container [2020-10-29 07:33:04,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:33:02" (2/3) ... [2020-10-29 07:33:04,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a1a586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:33:04, skipping insertion in model container [2020-10-29 07:33:04,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:33:04" (3/3) ... [2020-10-29 07:33:04,707 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label33.c [2020-10-29 07:33:04,721 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:33:04,728 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:33:04,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:33:04,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:33:04,776 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:33:04,776 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:33:04,777 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:33:04,777 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:33:04,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:33:04,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:33:04,777 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:33:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:33:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 07:33:04,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:04,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:33:04,815 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:04,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:04,822 INFO L82 PathProgramCache]: Analyzing trace with hash -613819394, now seen corresponding path program 1 times [2020-10-29 07:33:04,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:04,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924794535] [2020-10-29 07:33:04,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:05,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:05,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:05,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:33:05,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:05,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-29 07:33:05,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:05,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:05,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:33:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:33:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 07:33:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:33:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:05,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:05,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:05,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:05,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:05,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:33:05,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:05,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:05,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:33:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:33:05,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924794535] [2020-10-29 07:33:05,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:33:05,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 07:33:05,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432787645] [2020-10-29 07:33:05,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:33:05,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:33:05,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:33:05,968 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-29 07:33:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:09,702 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-29 07:33:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:33:09,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-29 07:33:09,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:09,744 INFO L225 Difference]: With dead ends: 891 [2020-10-29 07:33:09,744 INFO L226 Difference]: Without dead ends: 565 [2020-10-29 07:33:09,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:33:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-29 07:33:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-29 07:33:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-29 07:33:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-29 07:33:09,911 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 65 [2020-10-29 07:33:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:09,912 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-29 07:33:09,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:33:09,913 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-29 07:33:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 07:33:09,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:09,922 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:33:09,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:33:09,923 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:09,923 INFO L82 PathProgramCache]: Analyzing trace with hash -861101697, now seen corresponding path program 1 times [2020-10-29 07:33:09,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:09,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755696673] [2020-10-29 07:33:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:11,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:11,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-29 07:33:11,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:33:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-29 07:33:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:11,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:33:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 07:33:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:11,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:11,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:11,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:11,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:11,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:33:11,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:11,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:11,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:11,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:33:11,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:11,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:11,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 07:33:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 07:33:11,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:11,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 07:33:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:33:12,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755696673] [2020-10-29 07:33:12,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:12,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:33:12,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073396882] [2020-10-29 07:33:12,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:33:12,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:12,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:33:12,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:33:12,131 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 5 states. [2020-10-29 07:33:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:14,623 INFO L93 Difference]: Finished difference Result 1670 states and 2751 transitions. [2020-10-29 07:33:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:33:14,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-29 07:33:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:14,634 INFO L225 Difference]: With dead ends: 1670 [2020-10-29 07:33:14,635 INFO L226 Difference]: Without dead ends: 1117 [2020-10-29 07:33:14,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:33:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-10-29 07:33:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 745. [2020-10-29 07:33:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-29 07:33:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1149 transitions. [2020-10-29 07:33:14,686 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1149 transitions. Word has length 139 [2020-10-29 07:33:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:14,688 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 1149 transitions. [2020-10-29 07:33:14,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:33:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1149 transitions. [2020-10-29 07:33:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-29 07:33:14,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:14,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:33:14,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:33:14,693 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:14,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1253357621, now seen corresponding path program 1 times [2020-10-29 07:33:14,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:14,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309198325] [2020-10-29 07:33:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:14,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:14,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:15,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-29 07:33:16,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:33:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-29 07:33:16,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:16,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:33:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:33:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 07:33:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:16,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:16,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:16,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:33:16,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:16,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:33:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:16,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:16,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:16,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:16,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:33:16,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:33:16,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 07:33:16,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:16,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:33:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:33:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 07:33:16,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309198325] [2020-10-29 07:33:16,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:16,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:33:16,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444819521] [2020-10-29 07:33:16,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 07:33:16,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:16,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 07:33:16,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:33:16,778 INFO L87 Difference]: Start difference. First operand 745 states and 1149 transitions. Second operand 6 states. [2020-10-29 07:33:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:19,136 INFO L93 Difference]: Finished difference Result 1864 states and 2874 transitions. [2020-10-29 07:33:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:33:19,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-10-29 07:33:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:19,145 INFO L225 Difference]: With dead ends: 1864 [2020-10-29 07:33:19,146 INFO L226 Difference]: Without dead ends: 1125 [2020-10-29 07:33:19,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:33:19,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2020-10-29 07:33:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1119. [2020-10-29 07:33:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-10-29 07:33:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1596 transitions. [2020-10-29 07:33:19,197 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1596 transitions. Word has length 145 [2020-10-29 07:33:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:19,198 INFO L481 AbstractCegarLoop]: Abstraction has 1119 states and 1596 transitions. [2020-10-29 07:33:19,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 07:33:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1596 transitions. [2020-10-29 07:33:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-29 07:33:19,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:19,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:33:19,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:33:19,202 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:19,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:19,202 INFO L82 PathProgramCache]: Analyzing trace with hash 332268397, now seen corresponding path program 1 times [2020-10-29 07:33:19,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:19,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335974289] [2020-10-29 07:33:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:19,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:19,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:20,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:20,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:33:20,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:33:20,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1543 [2020-10-29 07:33:20,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:20,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:33:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 07:33:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:20,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:20,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:20,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:20,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:20,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:20,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:20,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:20,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:21,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:21,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:33:21,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:21,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:33:21,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:21,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:21,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 07:33:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 07:33:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:33:21,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335974289] [2020-10-29 07:33:21,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:21,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:33:21,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373076804] [2020-10-29 07:33:21,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:33:21,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:21,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:33:21,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:33:21,091 INFO L87 Difference]: Start difference. First operand 1119 states and 1596 transitions. Second operand 5 states. [2020-10-29 07:33:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:23,274 INFO L93 Difference]: Finished difference Result 2614 states and 3991 transitions. [2020-10-29 07:33:23,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:33:23,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-10-29 07:33:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:23,287 INFO L225 Difference]: With dead ends: 2614 [2020-10-29 07:33:23,287 INFO L226 Difference]: Without dead ends: 1867 [2020-10-29 07:33:23,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:33:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2020-10-29 07:33:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1489. [2020-10-29 07:33:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-10-29 07:33:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2078 transitions. [2020-10-29 07:33:23,356 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2078 transitions. Word has length 148 [2020-10-29 07:33:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:23,357 INFO L481 AbstractCegarLoop]: Abstraction has 1489 states and 2078 transitions. [2020-10-29 07:33:23,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:33:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2078 transitions. [2020-10-29 07:33:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-29 07:33:23,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:23,363 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:33:23,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:33:23,364 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:23,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1240343080, now seen corresponding path program 1 times [2020-10-29 07:33:23,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:23,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044153048] [2020-10-29 07:33:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:23,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:27,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:28,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:28,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:33:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:33:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:33:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:28,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:28,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:28,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:28,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:33:28,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:28,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:33:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:28,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:28,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:28,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:33:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-29 07:33:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:28,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:33:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:33:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:29,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 07:33:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:29,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:33:29,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:33:29,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:29,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:33:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:33:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 114 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 07:33:29,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044153048] [2020-10-29 07:33:29,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:29,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:33:29,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348117362] [2020-10-29 07:33:29,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:33:29,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:29,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:33:29,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:33:29,364 INFO L87 Difference]: Start difference. First operand 1489 states and 2078 transitions. Second operand 7 states. [2020-10-29 07:33:31,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:31,956 INFO L93 Difference]: Finished difference Result 2670 states and 3967 transitions. [2020-10-29 07:33:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:33:31,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 257 [2020-10-29 07:33:31,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:31,969 INFO L225 Difference]: With dead ends: 2670 [2020-10-29 07:33:31,969 INFO L226 Difference]: Without dead ends: 1553 [2020-10-29 07:33:31,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:33:31,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2020-10-29 07:33:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1321. [2020-10-29 07:33:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1321 states. [2020-10-29 07:33:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1786 transitions. [2020-10-29 07:33:32,032 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1786 transitions. Word has length 257 [2020-10-29 07:33:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:32,032 INFO L481 AbstractCegarLoop]: Abstraction has 1321 states and 1786 transitions. [2020-10-29 07:33:32,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:33:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1786 transitions. [2020-10-29 07:33:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-29 07:33:32,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:32,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:33:32,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:33:32,039 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:32,040 INFO L82 PathProgramCache]: Analyzing trace with hash 264857950, now seen corresponding path program 1 times [2020-10-29 07:33:32,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:32,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342423230] [2020-10-29 07:33:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:32,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:32,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:37,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:37,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-29 07:33:37,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:33:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 07:33:37,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:37,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:33:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-29 07:33:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 07:33:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:37,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:37,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:37,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:37,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:37,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:37,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:37,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:33:37,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:37,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 07:33:37,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:37,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:33:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:33:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:33:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:37,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:37,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:37,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:33:37,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:33:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 07:33:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:37,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:33:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:33:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 132 proven. 57 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 07:33:37,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342423230] [2020-10-29 07:33:37,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:37,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:33:37,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963562845] [2020-10-29 07:33:37,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:33:37,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:37,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:33:37,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:33:37,878 INFO L87 Difference]: Start difference. First operand 1321 states and 1786 transitions. Second operand 7 states. [2020-10-29 07:33:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:41,692 INFO L93 Difference]: Finished difference Result 3062 states and 4531 transitions. [2020-10-29 07:33:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:33:41,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2020-10-29 07:33:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:41,729 INFO L225 Difference]: With dead ends: 3062 [2020-10-29 07:33:41,729 INFO L226 Difference]: Without dead ends: 2113 [2020-10-29 07:33:41,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:33:41,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2020-10-29 07:33:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1887. [2020-10-29 07:33:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-10-29 07:33:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2492 transitions. [2020-10-29 07:33:41,805 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2492 transitions. Word has length 278 [2020-10-29 07:33:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:41,806 INFO L481 AbstractCegarLoop]: Abstraction has 1887 states and 2492 transitions. [2020-10-29 07:33:41,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:33:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2492 transitions. [2020-10-29 07:33:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-29 07:33:41,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:41,816 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-29 07:33:41,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:33:41,816 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:41,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:41,818 INFO L82 PathProgramCache]: Analyzing trace with hash 786704695, now seen corresponding path program 1 times [2020-10-29 07:33:41,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:41,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850390420] [2020-10-29 07:33:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:42,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:42,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:46,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:46,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-29 07:33:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:33:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 07:33:46,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:47,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:47,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:47,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:33:47,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:47,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:33:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:47,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:47,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:33:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 07:33:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:47,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:47,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:47,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:33:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:33:47,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:33:47,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-29 07:33:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:47,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:47,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:33:47,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:33:47,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:47,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:33:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:47,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:33:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:47,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:47,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:33:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:47,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:33:47,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:47,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:33:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 171 proven. 156 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-29 07:33:48,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850390420] [2020-10-29 07:33:48,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:48,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:33:48,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520650328] [2020-10-29 07:33:48,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:33:48,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:48,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:33:48,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:33:48,118 INFO L87 Difference]: Start difference. First operand 1887 states and 2492 transitions. Second operand 7 states. [2020-10-29 07:33:50,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:33:50,598 INFO L93 Difference]: Finished difference Result 3442 states and 4722 transitions. [2020-10-29 07:33:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:33:50,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 364 [2020-10-29 07:33:50,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:33:50,611 INFO L225 Difference]: With dead ends: 3442 [2020-10-29 07:33:50,612 INFO L226 Difference]: Without dead ends: 1927 [2020-10-29 07:33:50,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:33:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2020-10-29 07:33:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1887. [2020-10-29 07:33:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2020-10-29 07:33:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2461 transitions. [2020-10-29 07:33:50,685 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2461 transitions. Word has length 364 [2020-10-29 07:33:50,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:33:50,686 INFO L481 AbstractCegarLoop]: Abstraction has 1887 states and 2461 transitions. [2020-10-29 07:33:50,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:33:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2461 transitions. [2020-10-29 07:33:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-29 07:33:50,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:33:50,698 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:33:50,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:33:50,699 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:33:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:33:50,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1202021474, now seen corresponding path program 1 times [2020-10-29 07:33:50,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:33:50,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042520260] [2020-10-29 07:33:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:33:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:51,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:51,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:55,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:55,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 452 [2020-10-29 07:33:55,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:33:55,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:33:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:33:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:33:55,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:33:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:55,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:56,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 07:33:56,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 07:33:56,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:56,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:33:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:33:56,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 07:33:56,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:56,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 07:33:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:56,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:56,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:56,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:33:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:33:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:33:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-29 07:33:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:56,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:56,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:33:56,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:56,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-10-29 07:33:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:33:56,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:33:56,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:33:56,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:33:56,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:33:56,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:33:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:33:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 303 proven. 162 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-10-29 07:33:57,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042520260] [2020-10-29 07:33:57,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:33:57,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:33:57,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759076302] [2020-10-29 07:33:57,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:33:57,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:33:57,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:33:57,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:33:57,030 INFO L87 Difference]: Start difference. First operand 1887 states and 2461 transitions. Second operand 8 states. [2020-10-29 07:34:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:01,065 INFO L93 Difference]: Finished difference Result 4340 states and 5778 transitions. [2020-10-29 07:34:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 07:34:01,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 434 [2020-10-29 07:34:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:01,081 INFO L225 Difference]: With dead ends: 4340 [2020-10-29 07:34:01,081 INFO L226 Difference]: Without dead ends: 2457 [2020-10-29 07:34:01,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 07:34:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2020-10-29 07:34:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2077. [2020-10-29 07:34:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2020-10-29 07:34:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2646 transitions. [2020-10-29 07:34:01,156 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2646 transitions. Word has length 434 [2020-10-29 07:34:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:01,156 INFO L481 AbstractCegarLoop]: Abstraction has 2077 states and 2646 transitions. [2020-10-29 07:34:01,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:34:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2646 transitions. [2020-10-29 07:34:01,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-10-29 07:34:01,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:01,170 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:01,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:34:01,170 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:01,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1903795516, now seen corresponding path program 1 times [2020-10-29 07:34:01,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:01,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963198538] [2020-10-29 07:34:01,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:01,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:01,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:01,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:05,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 495 [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:06,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:34:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-29 07:34:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-29 07:34:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:06,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:06,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:06,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:06,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:06,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:06,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:06,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:06,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:06,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 07:34:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:06,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:06,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:34:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:06,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:06,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:34:06,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:06,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-29 07:34:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:07,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:07,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:07,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:34:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 591 proven. 83 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-29 07:34:07,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963198538] [2020-10-29 07:34:07,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:07,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:34:07,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775909849] [2020-10-29 07:34:07,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:34:07,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:07,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:34:07,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:34:07,512 INFO L87 Difference]: Start difference. First operand 2077 states and 2646 transitions. Second operand 9 states. [2020-10-29 07:34:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:10,264 INFO L93 Difference]: Finished difference Result 4742 states and 6369 transitions. [2020-10-29 07:34:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:34:10,265 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 477 [2020-10-29 07:34:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:10,280 INFO L225 Difference]: With dead ends: 4742 [2020-10-29 07:34:10,281 INFO L226 Difference]: Without dead ends: 3037 [2020-10-29 07:34:10,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:34:10,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2020-10-29 07:34:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 3005. [2020-10-29 07:34:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3005 states. [2020-10-29 07:34:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3769 transitions. [2020-10-29 07:34:10,376 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 3769 transitions. Word has length 477 [2020-10-29 07:34:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:10,377 INFO L481 AbstractCegarLoop]: Abstraction has 3005 states and 3769 transitions. [2020-10-29 07:34:10,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:34:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 3769 transitions. [2020-10-29 07:34:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-10-29 07:34:10,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:10,399 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-29 07:34:10,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:34:10,400 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:10,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:10,400 INFO L82 PathProgramCache]: Analyzing trace with hash -363858359, now seen corresponding path program 1 times [2020-10-29 07:34:10,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:10,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564790922] [2020-10-29 07:34:10,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:10,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:10,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:10,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:12,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:15,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:15,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 604 [2020-10-29 07:34:15,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:34:15,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 07:34:15,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:15,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:34:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:34:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:15,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:15,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:15,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:15,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 07:34:15,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:15,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:15,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:15,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 07:34:15,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:15,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:34:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:15,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:15,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:16,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:34:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-29 07:34:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:16,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:34:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:16,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-29 07:34:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:16,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:16,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:16,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:34:16,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2020-10-29 07:34:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:16,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:16,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:16,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 519 proven. 163 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-10-29 07:34:16,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564790922] [2020-10-29 07:34:16,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:16,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:34:16,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516259514] [2020-10-29 07:34:16,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:16,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:16,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:16,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:16,431 INFO L87 Difference]: Start difference. First operand 3005 states and 3769 transitions. Second operand 7 states. [2020-10-29 07:34:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:19,396 INFO L93 Difference]: Finished difference Result 6204 states and 8031 transitions. [2020-10-29 07:34:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:34:19,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 584 [2020-10-29 07:34:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:19,412 INFO L225 Difference]: With dead ends: 6204 [2020-10-29 07:34:19,413 INFO L226 Difference]: Without dead ends: 3571 [2020-10-29 07:34:19,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:34:19,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2020-10-29 07:34:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3567. [2020-10-29 07:34:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-10-29 07:34:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4463 transitions. [2020-10-29 07:34:19,517 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4463 transitions. Word has length 584 [2020-10-29 07:34:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:19,518 INFO L481 AbstractCegarLoop]: Abstraction has 3567 states and 4463 transitions. [2020-10-29 07:34:19,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4463 transitions. [2020-10-29 07:34:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2020-10-29 07:34:19,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:19,530 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:19,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:34:19,531 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:19,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:19,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1287319882, now seen corresponding path program 1 times [2020-10-29 07:34:19,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:19,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87654703] [2020-10-29 07:34:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:19,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:19,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:21,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 666 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 402 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-29 07:34:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:24,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:24,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:24,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:24,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:24,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:24,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:24,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:24,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:24,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:24,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:24,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:24,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:34:24,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:24,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:24,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-29 07:34:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:24,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:24,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 07:34:24,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:24,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:34:24,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:24,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:24,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 07:34:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:34:25,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-10-29 07:34:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:25,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:34:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:25,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2020-10-29 07:34:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:25,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:25,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:34:25,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 1045 proven. 8 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-29 07:34:25,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87654703] [2020-10-29 07:34:25,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:25,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:34:25,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593097735] [2020-10-29 07:34:25,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:34:25,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:25,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:34:25,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:34:25,526 INFO L87 Difference]: Start difference. First operand 3567 states and 4463 transitions. Second operand 8 states. [2020-10-29 07:34:29,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:29,821 INFO L93 Difference]: Finished difference Result 8622 states and 11197 transitions. [2020-10-29 07:34:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:34:29,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 644 [2020-10-29 07:34:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:29,848 INFO L225 Difference]: With dead ends: 8622 [2020-10-29 07:34:29,848 INFO L226 Difference]: Without dead ends: 5243 [2020-10-29 07:34:29,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 07:34:29,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2020-10-29 07:34:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 3931. [2020-10-29 07:34:29,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3931 states. [2020-10-29 07:34:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 4695 transitions. [2020-10-29 07:34:29,995 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 4695 transitions. Word has length 644 [2020-10-29 07:34:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:29,996 INFO L481 AbstractCegarLoop]: Abstraction has 3931 states and 4695 transitions. [2020-10-29 07:34:29,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:34:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 4695 transitions. [2020-10-29 07:34:30,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-10-29 07:34:30,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:30,012 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:30,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:34:30,012 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:30,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:30,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2025501790, now seen corresponding path program 1 times [2020-10-29 07:34:30,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:30,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24787185] [2020-10-29 07:34:30,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:30,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:30,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:31,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 761 [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 431 [2020-10-29 07:34:35,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:34:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:35,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:35,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:34:35,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:35,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:35,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-29 07:34:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 07:34:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-10-29 07:34:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:34:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:34:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:35,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:35,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:34:35,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:35,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1737 backedges. 776 proven. 79 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2020-10-29 07:34:36,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24787185] [2020-10-29 07:34:36,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:36,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:34:36,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547911976] [2020-10-29 07:34:36,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:36,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:36,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:36,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:36,257 INFO L87 Difference]: Start difference. First operand 3931 states and 4695 transitions. Second operand 7 states. [2020-10-29 07:34:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:39,098 INFO L93 Difference]: Finished difference Result 7522 states and 9102 transitions. [2020-10-29 07:34:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:34:39,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 739 [2020-10-29 07:34:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:39,118 INFO L225 Difference]: With dead ends: 7522 [2020-10-29 07:34:39,118 INFO L226 Difference]: Without dead ends: 3963 [2020-10-29 07:34:39,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:34:39,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2020-10-29 07:34:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 3933. [2020-10-29 07:34:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3933 states. [2020-10-29 07:34:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 4565 transitions. [2020-10-29 07:34:39,244 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 4565 transitions. Word has length 739 [2020-10-29 07:34:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:39,245 INFO L481 AbstractCegarLoop]: Abstraction has 3933 states and 4565 transitions. [2020-10-29 07:34:39,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 4565 transitions. [2020-10-29 07:34:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2020-10-29 07:34:39,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:39,262 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:39,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:34:39,262 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:39,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1972694912, now seen corresponding path program 1 times [2020-10-29 07:34:39,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:39,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857752097] [2020-10-29 07:34:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:39,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 485 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:34:44,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:44,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:44,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:44,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:44,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:44,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:44,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:34:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:44,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:34:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:44,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-10-29 07:34:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:44,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:45,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:45,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:34:45,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:34:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 656 [2020-10-29 07:34:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:34:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:34:45,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 830 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-29 07:34:45,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857752097] [2020-10-29 07:34:45,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:45,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:34:45,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828799998] [2020-10-29 07:34:45,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:45,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:45,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:45,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:45,520 INFO L87 Difference]: Start difference. First operand 3933 states and 4565 transitions. Second operand 7 states. [2020-10-29 07:34:48,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:48,494 INFO L93 Difference]: Finished difference Result 9346 states and 11114 transitions. [2020-10-29 07:34:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:34:48,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 793 [2020-10-29 07:34:48,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:48,522 INFO L225 Difference]: With dead ends: 9346 [2020-10-29 07:34:48,523 INFO L226 Difference]: Without dead ends: 5601 [2020-10-29 07:34:48,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:34:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5601 states. [2020-10-29 07:34:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5601 to 4865. [2020-10-29 07:34:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4865 states. [2020-10-29 07:34:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 5686 transitions. [2020-10-29 07:34:48,669 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 5686 transitions. Word has length 793 [2020-10-29 07:34:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:48,670 INFO L481 AbstractCegarLoop]: Abstraction has 4865 states and 5686 transitions. [2020-10-29 07:34:48,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:48,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 5686 transitions. [2020-10-29 07:34:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2020-10-29 07:34:48,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:48,690 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2020-10-29 07:34:48,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:34:48,690 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:48,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:48,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1886516172, now seen corresponding path program 1 times [2020-10-29 07:34:48,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:48,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924356608] [2020-10-29 07:34:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:49,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:50,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:53,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 841 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:34:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:34:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:34:54,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:34:54,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:54,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:54,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:34:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:34:54,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:34:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:34:54,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 07:34:54,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:54,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:34:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:34:54,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:34:54,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:34:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:34:54,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 07:34:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:34:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:34:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:34:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:34:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:34:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:34:54,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-29 07:34:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:54,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:34:54,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:34:54,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:34:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:34:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 856 proven. 79 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2020-10-29 07:34:55,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924356608] [2020-10-29 07:34:55,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:34:55,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:34:55,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569711742] [2020-10-29 07:34:55,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:34:55,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:34:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:34:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:34:55,091 INFO L87 Difference]: Start difference. First operand 4865 states and 5686 transitions. Second operand 7 states. [2020-10-29 07:34:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:34:57,930 INFO L93 Difference]: Finished difference Result 10289 states and 12170 transitions. [2020-10-29 07:34:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:34:57,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 819 [2020-10-29 07:34:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:34:57,952 INFO L225 Difference]: With dead ends: 10289 [2020-10-29 07:34:57,952 INFO L226 Difference]: Without dead ends: 5796 [2020-10-29 07:34:57,962 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 [2020-10-29 07:34:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5796 states. [2020-10-29 07:34:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5796 to 5241. [2020-10-29 07:34:58,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5241 states. [2020-10-29 07:34:58,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 6205 transitions. [2020-10-29 07:34:58,104 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 6205 transitions. Word has length 819 [2020-10-29 07:34:58,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:34:58,106 INFO L481 AbstractCegarLoop]: Abstraction has 5241 states and 6205 transitions. [2020-10-29 07:34:58,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:34:58,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 6205 transitions. [2020-10-29 07:34:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2020-10-29 07:34:58,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:34:58,125 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:34:58,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:34:58,126 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:34:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:34:58,127 INFO L82 PathProgramCache]: Analyzing trace with hash -399992997, now seen corresponding path program 1 times [2020-10-29 07:34:58,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:34:58,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262219309] [2020-10-29 07:34:58,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:34:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:34:58,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:58,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:34:59,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 868 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:35:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 07:35:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:03,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:03,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:03,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:35:03,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:03,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:35:03,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:35:03,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:35:03,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-10-29 07:35:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:35:03,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:03,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-10-29 07:35:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:03,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:03,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:35:03,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:03,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:35:03,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:03,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 07:35:03,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:03,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2020-10-29 07:35:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:03,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:04,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:04,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:04,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:04,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 707 [2020-10-29 07:35:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2378 backedges. 598 proven. 322 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2020-10-29 07:35:04,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262219309] [2020-10-29 07:35:04,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:04,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:04,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386699118] [2020-10-29 07:35:04,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:04,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:04,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:04,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:04,451 INFO L87 Difference]: Start difference. First operand 5241 states and 6205 transitions. Second operand 7 states. [2020-10-29 07:35:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:07,681 INFO L93 Difference]: Finished difference Result 11584 states and 13847 transitions. [2020-10-29 07:35:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:07,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 844 [2020-10-29 07:35:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:07,704 INFO L225 Difference]: With dead ends: 11584 [2020-10-29 07:35:07,704 INFO L226 Difference]: Without dead ends: 6715 [2020-10-29 07:35:07,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:35:07,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2020-10-29 07:35:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6347. [2020-10-29 07:35:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6347 states. [2020-10-29 07:35:07,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 7529 transitions. [2020-10-29 07:35:07,870 INFO L78 Accepts]: Start accepts. Automaton has 6347 states and 7529 transitions. Word has length 844 [2020-10-29 07:35:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:07,870 INFO L481 AbstractCegarLoop]: Abstraction has 6347 states and 7529 transitions. [2020-10-29 07:35:07,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6347 states and 7529 transitions. [2020-10-29 07:35:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2020-10-29 07:35:07,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:07,893 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:35:07,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:35:07,893 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:07,894 INFO L82 PathProgramCache]: Analyzing trace with hash 749623675, now seen corresponding path program 1 times [2020-10-29 07:35:07,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:07,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603270561] [2020-10-29 07:35:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:08,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 884 [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 554 [2020-10-29 07:35:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:35:13,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:13,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:35:13,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 07:35:13,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-29 07:35:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2020-10-29 07:35:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:13,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 07:35:13,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2020-10-29 07:35:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:13,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 07:35:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:13,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:13,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:13,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:13,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2458 backedges. 960 proven. 79 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2020-10-29 07:35:14,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603270561] [2020-10-29 07:35:14,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:14,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:14,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549054576] [2020-10-29 07:35:14,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:14,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:14,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:14,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:14,292 INFO L87 Difference]: Start difference. First operand 6347 states and 7529 transitions. Second operand 7 states. [2020-10-29 07:35:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:17,172 INFO L93 Difference]: Finished difference Result 11404 states and 13593 transitions. [2020-10-29 07:35:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:17,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 860 [2020-10-29 07:35:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:17,186 INFO L225 Difference]: With dead ends: 11404 [2020-10-29 07:35:17,186 INFO L226 Difference]: Without dead ends: 2779 [2020-10-29 07:35:17,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2020-10-29 07:35:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2595. [2020-10-29 07:35:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2595 states. [2020-10-29 07:35:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 2649 transitions. [2020-10-29 07:35:17,347 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 2649 transitions. Word has length 860 [2020-10-29 07:35:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:17,347 INFO L481 AbstractCegarLoop]: Abstraction has 2595 states and 2649 transitions. [2020-10-29 07:35:17,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 2649 transitions. [2020-10-29 07:35:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2020-10-29 07:35:17,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:17,361 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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] [2020-10-29 07:35:17,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:35:17,362 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:17,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1016019865, now seen corresponding path program 1 times [2020-10-29 07:35:17,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:17,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934879094] [2020-10-29 07:35:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:17,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:19,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:22,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:22,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 919 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:35:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:22,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:22,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:22,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:22,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:22,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:22,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:22,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:22,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:22,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:22,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:22,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:22,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:22,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:22,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:22,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:23,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:23,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:35:23,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:35:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:23,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-29 07:35:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:23,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:23,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:35:23,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:23,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-29 07:35:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:23,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-29 07:35:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:23,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:23,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:23,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:23,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:23,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:23,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:23,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:23,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2414 backedges. 738 proven. 148 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2020-10-29 07:35:23,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934879094] [2020-10-29 07:35:23,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:23,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:35:23,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258699550] [2020-10-29 07:35:23,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:35:23,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:35:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:35:23,834 INFO L87 Difference]: Start difference. First operand 2595 states and 2649 transitions. Second operand 8 states. [2020-10-29 07:35:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:26,319 INFO L93 Difference]: Finished difference Result 4814 states and 4923 transitions. [2020-10-29 07:35:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:26,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 895 [2020-10-29 07:35:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:26,330 INFO L225 Difference]: With dead ends: 4814 [2020-10-29 07:35:26,330 INFO L226 Difference]: Without dead ends: 2775 [2020-10-29 07:35:26,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:35:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2020-10-29 07:35:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2591. [2020-10-29 07:35:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2591 states. [2020-10-29 07:35:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 2632 transitions. [2020-10-29 07:35:26,414 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 2632 transitions. Word has length 895 [2020-10-29 07:35:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:26,416 INFO L481 AbstractCegarLoop]: Abstraction has 2591 states and 2632 transitions. [2020-10-29 07:35:26,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:35:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 2632 transitions. [2020-10-29 07:35:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1096 [2020-10-29 07:35:26,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:26,439 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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] [2020-10-29 07:35:26,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:35:26,440 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:26,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1254704484, now seen corresponding path program 1 times [2020-10-29 07:35:26,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:26,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951030583] [2020-10-29 07:35:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:27,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:30,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:31,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:31,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1121 [2020-10-29 07:35:31,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5148 [2020-10-29 07:35:31,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:31,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:35:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 607 [2020-10-29 07:35:31,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 366 [2020-10-29 07:35:31,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:32,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:32,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:32,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:32,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:32,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:35:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:35:32,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:35:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:35:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:32,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:35:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:35:32,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 07:35:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2020-10-29 07:35:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:33,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:33,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:33,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:33,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3337 backedges. 1660 proven. 330 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2020-10-29 07:35:33,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951030583] [2020-10-29 07:35:33,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:33,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 07:35:33,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673470504] [2020-10-29 07:35:33,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 07:35:33,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:33,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 07:35:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:35:33,712 INFO L87 Difference]: Start difference. First operand 2591 states and 2632 transitions. Second operand 10 states. [2020-10-29 07:35:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:36,247 INFO L93 Difference]: Finished difference Result 3700 states and 3758 transitions. [2020-10-29 07:35:36,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:35:36,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1095 [2020-10-29 07:35:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:36,259 INFO L225 Difference]: With dead ends: 3700 [2020-10-29 07:35:36,259 INFO L226 Difference]: Without dead ends: 2773 [2020-10-29 07:35:36,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-29 07:35:36,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2020-10-29 07:35:36,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2771. [2020-10-29 07:35:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2771 states. [2020-10-29 07:35:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 2812 transitions. [2020-10-29 07:35:36,312 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 2812 transitions. Word has length 1095 [2020-10-29 07:35:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:36,313 INFO L481 AbstractCegarLoop]: Abstraction has 2771 states and 2812 transitions. [2020-10-29 07:35:36,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 07:35:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 2812 transitions. [2020-10-29 07:35:36,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1467 [2020-10-29 07:35:36,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:36,338 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, 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, 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, 8, 7, 7, 7, 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] [2020-10-29 07:35:36,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:35:36,338 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:36,339 INFO L82 PathProgramCache]: Analyzing trace with hash -146941895, now seen corresponding path program 1 times [2020-10-29 07:35:36,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:36,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594513325] [2020-10-29 07:35:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:37,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:37,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:40,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1498 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 607 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:41,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:41,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:41,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:41,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:41,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:41,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:41,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:42,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:42,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:35:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:42,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:35:42,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:35:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:35:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:43,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 07:35:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:43,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 916 [2020-10-29 07:35:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:43,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:43,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:43,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 07:35:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:43,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:43,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1147 [2020-10-29 07:35:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:43,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-29 07:35:43,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:43,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:43,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1329 [2020-10-29 07:35:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:43,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:43,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:43,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:43,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:43,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6437 backedges. 1999 proven. 915 refuted. 0 times theorem prover too weak. 3523 trivial. 0 not checked. [2020-10-29 07:35:45,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594513325] [2020-10-29 07:35:45,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:45,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:35:45,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892799227] [2020-10-29 07:35:45,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:35:45,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:45,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:35:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:35:45,331 INFO L87 Difference]: Start difference. First operand 2771 states and 2812 transitions. Second operand 11 states. [2020-10-29 07:35:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:48,192 INFO L93 Difference]: Finished difference Result 3698 states and 3753 transitions. [2020-10-29 07:35:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 07:35:48,193 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1466 [2020-10-29 07:35:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:48,204 INFO L225 Difference]: With dead ends: 3698 [2020-10-29 07:35:48,204 INFO L226 Difference]: Without dead ends: 2775 [2020-10-29 07:35:48,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-10-29 07:35:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2020-10-29 07:35:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2771. [2020-10-29 07:35:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2771 states. [2020-10-29 07:35:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 2810 transitions. [2020-10-29 07:35:48,268 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 2810 transitions. Word has length 1466 [2020-10-29 07:35:48,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:48,269 INFO L481 AbstractCegarLoop]: Abstraction has 2771 states and 2810 transitions. [2020-10-29 07:35:48,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:35:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 2810 transitions. [2020-10-29 07:35:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2020-10-29 07:35:48,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:48,301 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, 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, 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, 9, 8, 8, 8, 7, 7, 7, 7, 6, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:35:48,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:35:48,302 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:48,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2052412928, now seen corresponding path program 2 times [2020-10-29 07:35:48,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:48,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336194311] [2020-10-29 07:35:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:48,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:51,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1618 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:53,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:53,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:53,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:53,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:53,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:35:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:53,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:53,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:53,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:53,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:35:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:53,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:53,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:53,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:35:53,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:53,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:35:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:53,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:35:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:35:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:35:54,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:35:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:35:54,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:35:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:35:54,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:35:54,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:35:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 07:35:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:35:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 07:35:54,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-29 07:35:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 07:35:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:35:54,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1152 [2020-10-29 07:35:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:35:54,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1265 [2020-10-29 07:35:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:54,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:35:54,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:54,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:35:54,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:54,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-29 07:35:54,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:54,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:54,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1447 [2020-10-29 07:35:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:55,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7689 backedges. 1117 proven. 977 refuted. 0 times theorem prover too weak. 5595 trivial. 0 not checked. [2020-10-29 07:35:56,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336194311] [2020-10-29 07:35:56,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:56,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:56,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450039187] [2020-10-29 07:35:56,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:56,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:56,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:56,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:56,202 INFO L87 Difference]: Start difference. First operand 2771 states and 2810 transitions. Second operand 7 states. [2020-10-29 07:35:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:58,078 INFO L93 Difference]: Finished difference Result 4983 states and 5058 transitions. [2020-10-29 07:35:58,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 07:35:58,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1584 [2020-10-29 07:35:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:58,080 INFO L225 Difference]: With dead ends: 4983 [2020-10-29 07:35:58,080 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 07:35:58,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:35:58,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 07:35:58,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 07:35:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 07:35:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 07:35:58,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1584 [2020-10-29 07:35:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:58,090 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 07:35:58,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 07:35:58,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 07:35:58,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:35:58,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 07:35:58,989 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 208 [2020-10-29 07:35:59,624 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2020-10-29 07:36:00,552 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 230 [2020-10-29 07:36:01,990 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2020-10-29 07:36:02,137 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 28 [2020-10-29 07:36:04,874 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 303 DAG size of output: 92 [2020-10-29 07:36:06,245 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 219 DAG size of output: 74 [2020-10-29 07:36:07,066 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 70 [2020-10-29 07:36:07,136 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 07:36:07,136 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 07:36:07,136 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 07:36:07,136 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 07:36:07,136 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 07:36:07,136 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)|)) [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-29 07:36:07,137 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-29 07:36:07,138 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 07:36:07,139 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 07:36:07,140 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,141 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L270 CegarLoopResult]: At program point L180(line 180) the Hoare annotation is: (let ((.cse6 (not (= 9 |old(~a21~0)|))) (.cse4 (not (<= |old(~a21~0)| 8))) (.cse9 (not (<= |old(~a15~0)| 6))) (.cse10 (not (<= 9 |old(~a15~0)|))) (.cse3 (not (<= 81 |old(~a12~0)|))) (.cse1 (not (= 10 |old(~a21~0)|))) (.cse5 (not (= 8 |old(~a15~0)|))) (.cse7 (not (<= 0 (+ |old(~a12~0)| 2)))) (.cse8 (not (<= |old(~a12~0)| 76))) (.cse0 (not (= (+ |old(~a12~0)| 49) 0))) (.cse2 (not (= |old(~a24~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (not (<= |old(~a12~0)| 73282)) .cse4) (or .cse5 .cse6 .cse7 .cse8) (or .cse9 (not (<= |old(~a12~0)| 10))) (or .cse9 .cse6) (or .cse9 .cse4) (or .cse7 .cse4 .cse8) (or .cse10 .cse4 .cse8) (or .cse3 (not (= 6 |old(~a21~0)|))) (or .cse10 .cse3) (or .cse3 .cse9) (or (not (<= |old(~a15~0)| 7)) (= 6 |old(~a15~0)|)) (or .cse1 .cse10 .cse8) (or .cse1 .cse3) (or .cse1 .cse5 .cse7 .cse8) (or (not (= 7 |old(~a21~0)|)) .cse0 .cse2))) [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L180-1(line 180) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,142 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-29 07:36:07,143 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,144 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,145 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse11 (= ~a15~0 8)) (.cse16 (= ~a24~0 |old(~a24~0)|)) (.cse10 (= ~a21~0 |old(~a21~0)|)) (.cse13 (= ~a12~0 |old(~a12~0)|)) (.cse18 (= ~a15~0 |old(~a15~0)|))) (let ((.cse8 (not (= (+ |old(~a12~0)| 49) 0))) (.cse9 (not (= |old(~a24~0)| 1))) (.cse12 (= ~a24~0 1)) (.cse15 (not (<= |old(~a15~0)| 6))) (.cse4 (not (= 10 |old(~a21~0)|))) (.cse19 (not (= 9 |old(~a21~0)|))) (.cse17 (= ~a21~0 9)) (.cse0 (not (<= 9 |old(~a15~0)|))) (.cse14 (not (<= 81 |old(~a12~0)|))) (.cse1 (and .cse16 .cse10 .cse13 .cse18)) (.cse5 (not (= 8 |old(~a15~0)|))) (.cse7 (and .cse16 .cse10 .cse11 .cse13)) (.cse6 (not (<= 0 (+ |old(~a12~0)| 2)))) (.cse2 (not (<= |old(~a21~0)| 8))) (.cse3 (not (<= |old(~a12~0)| 76)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse3) (or .cse8 .cse4 .cse9 .cse5 (and .cse10 .cse11 .cse12 .cse13)) (or (not (<= |old(~a15~0)| 7)) .cse1 (= 6 |old(~a15~0)|)) (or (and (or .cse14 .cse5 (not (= 6 |old(~a21~0)|))) (or .cse4 .cse14 .cse5)) .cse7) (or .cse14 (not (<= |old(~a12~0)| 73282)) .cse5 .cse7 .cse2) (or .cse15 (and .cse16 .cse17 .cse13 .cse18) .cse19) (or .cse1 (and (or .cse14 .cse15) (or .cse15 (not (<= |old(~a12~0)| 10))))) (or (not (= 7 |old(~a21~0)|)) .cse8 .cse9 (and .cse11 .cse12 .cse13 (= 7 ~a21~0)) .cse5) (or .cse15 .cse1 .cse2) (or .cse4 .cse0 .cse1 .cse3) (or .cse5 .cse19 .cse6 (and .cse16 .cse11 .cse17 .cse13) .cse3) (or .cse0 .cse14 .cse1) (or .cse5 .cse7 .cse6 .cse2 .cse3)))) [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-29 07:36:07,146 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-29 07:36:07,147 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-29 07:36:07,148 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,149 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-29 07:36:07,150 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-29 07:36:07,151 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-29 07:36:07,152 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,153 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-29 07:36:07,154 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-29 07:36:07,155 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 07:36:07,156 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 07:36:07,157 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 07:36:07,158 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0) (= (+ ~a12~0 49) 0)) [2020-10-29 07:36:07,159 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 07:36:07,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 07:36:07,159 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-29 07:36:07,159 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse13 (= ~a21~0 9)) (.cse12 (<= 0 (+ ~a12~0 2))) (.cse2 (<= ~a12~0 76)) (.cse1 (<= 9 ~a15~0)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse0 (= ~a21~0 10)) (.cse7 (= ~a24~0 1)) (.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse9 (= (+ ~a12~0 49) 0)) (.cse3 (<= ~a15~0 6)) (.cse10 (<= |old(~a15~0)| 8)) (.cse5 (<= 81 ~a12~0)) (.cse11 (= ~a15~0 8)) (.cse4 (<= ~a21~0 8))) (or (not (= |old(~a24~0)| 1)) (and .cse0 .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse4) (and .cse5 (= ~a21~0 6)) (and .cse6 .cse7 .cse8 (= 7 ~a21~0) .cse9) (and (<= ~a15~0 7) (not (= ~a15~0 6))) (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse3) (and .cse10 .cse5 .cse0 .cse11) (and .cse1 .cse4 .cse2) (and .cse12 .cse4 .cse2) (and .cse13 .cse3) (and .cse0 .cse11 .cse12 .cse2) (and .cse13 .cse12 (<= ~a15~0 |old(~a15~0)|) .cse2) (and .cse5 .cse1) (and .cse6 .cse0 .cse7 .cse8 .cse9) (and .cse5 .cse3) (and .cse10 .cse5 .cse11 (<= ~a12~0 73282) .cse4))) [2020-10-29 07:36:07,159 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-29 07:36:07,160 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-29 07:36:07,160 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-29 07:36:07,160 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse13 (= ~a21~0 9)) (.cse12 (<= 0 (+ ~a12~0 2))) (.cse2 (<= ~a12~0 76)) (.cse1 (<= 9 ~a15~0)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse0 (= ~a21~0 10)) (.cse7 (= ~a24~0 1)) (.cse8 (= ~a12~0 |old(~a12~0)|)) (.cse9 (= (+ ~a12~0 49) 0)) (.cse3 (<= ~a15~0 6)) (.cse10 (<= |old(~a15~0)| 8)) (.cse5 (<= 81 ~a12~0)) (.cse11 (= ~a15~0 8)) (.cse4 (<= ~a21~0 8))) (or (not (= |old(~a24~0)| 1)) (and .cse0 .cse1 .cse2) (not (= 8 |old(~a15~0)|)) (and .cse3 .cse4) (and .cse5 (= ~a21~0 6)) (and .cse6 .cse7 .cse8 (= 7 ~a21~0) .cse9) (and (<= ~a15~0 7) (not (= ~a15~0 6))) (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 10) .cse3) (and .cse10 .cse5 .cse0 .cse11) (and .cse1 .cse4 .cse2) (and .cse12 .cse4 .cse2) (and .cse13 .cse3) (and .cse0 .cse11 .cse12 .cse2) (and .cse13 .cse12 (<= ~a15~0 |old(~a15~0)|) .cse2) (and .cse5 .cse1) (and .cse6 .cse0 .cse7 .cse8 .cse9) (and .cse5 .cse3) (and .cse10 .cse5 .cse11 (<= ~a12~0 73282) .cse4))) [2020-10-29 07:36:07,160 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-29 07:36:07,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 07:36:07 BoogieIcfgContainer [2020-10-29 07:36:07,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 07:36:07,190 INFO L168 Benchmark]: Toolchain (without parser) took 185420.78 ms. Allocated memory was 175.1 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 147.9 MB in the beginning and 961.0 MB in the end (delta: -813.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-10-29 07:36:07,191 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory is still 147.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 07:36:07,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.02 ms. Allocated memory is still 175.1 MB. Free memory was 147.2 MB in the beginning and 149.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. [2020-10-29 07:36:07,192 INFO L168 Benchmark]: Boogie Preprocessor took 182.16 ms. Allocated memory is still 175.1 MB. Free memory was 149.7 MB in the beginning and 144.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 07:36:07,193 INFO L168 Benchmark]: RCFGBuilder took 1912.61 ms. Allocated memory was 175.1 MB in the beginning and 211.8 MB in the end (delta: 36.7 MB). Free memory was 143.9 MB in the beginning and 152.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. [2020-10-29 07:36:07,193 INFO L168 Benchmark]: TraceAbstraction took 182491.11 ms. Allocated memory was 211.8 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 152.3 MB in the beginning and 961.0 MB in the end (delta: -808.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-10-29 07:36:07,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 175.1 MB. Free memory is still 147.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 819.02 ms. Allocated memory is still 175.1 MB. Free memory was 147.2 MB in the beginning and 149.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 182.16 ms. Allocated memory is still 175.1 MB. Free memory was 149.7 MB in the beginning and 144.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1912.61 ms. Allocated memory was 175.1 MB in the beginning and 211.8 MB in the end (delta: 36.7 MB). Free memory was 143.9 MB in the beginning and 152.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 93.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 182491.11 ms. Allocated memory was 211.8 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 152.3 MB in the beginning and 961.0 MB in the end (delta: -808.7 MB). Peak memory consumption was 1.3 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: ((((((((((((((((((!(\old(a24) == 1) || ((a21 == 10 && 9 <= a15) && a12 <= 76)) || !(8 == \old(a15))) || (a15 <= 6 && a21 <= 8)) || (81 <= a12 && a21 == 6)) || ((((a24 == \old(a24) && a24 == 1) && a12 == \old(a12)) && 7 == a21) && a12 + 49 == 0)) || (a15 <= 7 && !(a15 == 6))) || !(7 == \old(a21))) || !(\old(a12) + 49 == 0)) || (a12 <= 10 && a15 <= 6)) || (((\old(a15) <= 8 && 81 <= a12) && a21 == 10) && a15 == 8)) || ((9 <= a15 && a21 <= 8) && a12 <= 76)) || ((0 <= a12 + 2 && a21 <= 8) && a12 <= 76)) || (a21 == 9 && a15 <= 6)) || (((a21 == 10 && a15 == 8) && 0 <= a12 + 2) && a12 <= 76)) || (((a21 == 9 && 0 <= a12 + 2) && a15 <= \old(a15)) && a12 <= 76)) || (81 <= a12 && 9 <= a15)) || ((((a24 == \old(a24) && a21 == 10) && a24 == 1) && a12 == \old(a12)) && a12 + 49 == 0)) || (81 <= a12 && a15 <= 6)) || ((((\old(a15) <= 8 && 81 <= a12) && a15 == 8) && a12 <= 73282) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 173.3s, OverallIterations: 20, TraceHistogramMax: 13, AutomataDifference: 58.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 557 SDtfs, 12281 SDslu, 780 SDs, 0 SdLazy, 26562 SolverSat, 4059 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 312 SyntacticMatches, 5 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6347occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 5051 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 558 PreInvPairs, 624 NumberOfFragments, 1100 HoareAnnotationTreeSize, 558 FomulaSimplifications, 607073 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12435 FormulaSimplificationTreeSizeReductionInter, 6.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 102.7s InterpolantComputationTime, 12630 NumberOfCodeBlocks, 12630 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 12610 ConstructedInterpolants, 0 QuantifiedInterpolants, 20964971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 31755/35523 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...