/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:52:56,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:52:56,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:52:56,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:52:56,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:52:56,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:52:56,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:52:56,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:52:56,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:52:56,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:52:56,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:52:56,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:52:56,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:52:56,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:52:56,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:52:56,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:52:56,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:52:56,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:52:56,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:52:56,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:52:56,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:52:56,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:52:56,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:52:56,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:52:56,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:52:56,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:52:56,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:52:56,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:52:56,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:52:56,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:52:56,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:52:56,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:52:56,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:52:56,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:52:56,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:52:56,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:52:56,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:52:56,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:52:56,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:52:56,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:52:56,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:52:56,554 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 [2020-09-25 06:52:56,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:52:56,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:52:56,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:52:56,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:52:56,588 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:52:56,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:52:56,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:52:56,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:52:56,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:52:56,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:52:56,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:52:56,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:52:56,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:52:56,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:52:56,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:52:56,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:52:56,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:52:56,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:52:56,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:52:56,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:52:56,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:52:56,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:52:56,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:52:56,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:52:56,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:52:56,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:52:56,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:52:56,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:52:56,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:52:56,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:52:57,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:52:57,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:52:57,139 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:52:57,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:52:57,142 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:52:57,143 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 06:52:57,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e0d4059/ff594919cc254352b015c414c5978232/FLAG62aa48b7c [2020-09-25 06:52:57,807 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:52:57,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 06:52:57,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e0d4059/ff594919cc254352b015c414c5978232/FLAG62aa48b7c [2020-09-25 06:52:58,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2e0d4059/ff594919cc254352b015c414c5978232 [2020-09-25 06:52:58,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:52:58,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:52:58,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:52:58,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:52:58,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:52:58,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ec4735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58, skipping insertion in model container [2020-09-25 06:52:58,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:52:58,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:52:58,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:52:58,630 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:52:58,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:52:58,777 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:52:58,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58 WrapperNode [2020-09-25 06:52:58,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:52:58,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:52:58,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:52:58,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:52:58,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (1/1) ... [2020-09-25 06:52:58,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:52:58,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:52:58,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:52:58,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:52:58,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (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 [2020-09-25 06:52:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:52:58,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:52:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 06:52:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:52:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:52:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:52:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 06:52:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 06:52:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:52:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:52:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:52:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:52:59,575 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:52:59,575 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:52:59,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:52:59 BoogieIcfgContainer [2020-09-25 06:52:59,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:52:59,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:52:59,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:52:59,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:52:59,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:52:58" (1/3) ... [2020-09-25 06:52:59,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c69a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:52:59, skipping insertion in model container [2020-09-25 06:52:59,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:52:58" (2/3) ... [2020-09-25 06:52:59,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c69a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:52:59, skipping insertion in model container [2020-09-25 06:52:59,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:52:59" (3/3) ... [2020-09-25 06:52:59,597 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-25 06:52:59,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:52:59,623 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-25 06:52:59,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-25 06:52:59,685 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:52:59,686 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:52:59,686 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:52:59,686 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:52:59,686 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:52:59,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:52:59,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:52:59,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:52:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-25 06:52:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 06:52:59,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:52:59,736 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] [2020-09-25 06:52:59,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:52:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:52:59,746 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-25 06:52:59,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:52:59,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909599253] [2020-09-25 06:52:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:52:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:52:59,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:00,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:00,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:53:00,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:00,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-25 06:53:00,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:00,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:00,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:00,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:53:00,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-25 06:53:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:00,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:00,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:00,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:00,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:00,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:53:00,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:00,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:00,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909599253] [2020-09-25 06:53:00,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:00,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:00,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917147090] [2020-09-25 06:53:00,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:00,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:00,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:00,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:00,462 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-25 06:53:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:01,318 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-25 06:53:01,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:53:01,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 06:53:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:01,345 INFO L225 Difference]: With dead ends: 290 [2020-09-25 06:53:01,345 INFO L226 Difference]: Without dead ends: 239 [2020-09-25 06:53:01,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:53:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-25 06:53:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-25 06:53:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-25 06:53:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-25 06:53:01,419 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-25 06:53:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:01,420 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-25 06:53:01,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-25 06:53:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 06:53:01,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:01,422 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] [2020-09-25 06:53:01,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:53:01,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:01,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:01,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-25 06:53:01,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:01,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276038634] [2020-09-25 06:53:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:01,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:01,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:53:01,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:01,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 06:53:01,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:01,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:53:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:01,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:53:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:01,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:01,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:01,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:53:01,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:01,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:01,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:01,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276038634] [2020-09-25 06:53:01,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:01,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:53:01,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337461265] [2020-09-25 06:53:01,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:01,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:01,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:01,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:01,848 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-25 06:53:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:02,142 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-25 06:53:02,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:53:02,143 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 06:53:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:02,145 INFO L225 Difference]: With dead ends: 187 [2020-09-25 06:53:02,145 INFO L226 Difference]: Without dead ends: 185 [2020-09-25 06:53:02,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:53:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-25 06:53:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-25 06:53:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-25 06:53:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-25 06:53:02,163 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-25 06:53:02,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:02,164 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-25 06:53:02,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-25 06:53:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 06:53:02,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:02,166 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] [2020-09-25 06:53:02,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:53:02,167 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:02,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:02,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-25 06:53:02,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:02,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588521577] [2020-09-25 06:53:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:02,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:02,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:02,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 06:53:02,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:02,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 06:53:02,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:02,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:53:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:02,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:02,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:02,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:02,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:02,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:02,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588521577] [2020-09-25 06:53:02,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:02,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:02,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170819016] [2020-09-25 06:53:02,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:02,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:02,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:02,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:02,401 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-25 06:53:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:02,950 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-25 06:53:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:53:02,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 06:53:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:02,956 INFO L225 Difference]: With dead ends: 237 [2020-09-25 06:53:02,956 INFO L226 Difference]: Without dead ends: 235 [2020-09-25 06:53:02,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:53:02,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-25 06:53:02,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-25 06:53:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-25 06:53:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-25 06:53:02,970 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-25 06:53:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:02,971 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-25 06:53:02,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-25 06:53:02,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 06:53:02,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:02,973 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] [2020-09-25 06:53:02,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:53:02,974 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:02,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:02,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-25 06:53:02,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:02,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652616655] [2020-09-25 06:53:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:03,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:03,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:53:03,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:53:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-25 06:53:03,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:03,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:53:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:53:03,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:03,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:03,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:03,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:03,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:03,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:03,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:03,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:03,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652616655] [2020-09-25 06:53:03,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:03,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:03,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860925720] [2020-09-25 06:53:03,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:03,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:03,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:03,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:03,495 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-25 06:53:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:03,744 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-25 06:53:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:53:03,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-25 06:53:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:03,747 INFO L225 Difference]: With dead ends: 183 [2020-09-25 06:53:03,747 INFO L226 Difference]: Without dead ends: 181 [2020-09-25 06:53:03,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:53:03,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-25 06:53:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-25 06:53:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-25 06:53:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-25 06:53:03,758 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-25 06:53:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:03,759 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-25 06:53:03,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-25 06:53:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:53:03,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:03,762 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] [2020-09-25 06:53:03,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:53:03,762 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:03,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-25 06:53:03,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:03,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561638788] [2020-09-25 06:53:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:03,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:03,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:04,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:53:04,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-25 06:53:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:04,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:53:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:04,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:04,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:04,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:04,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:04,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:04,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561638788] [2020-09-25 06:53:04,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:04,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:04,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213321309] [2020-09-25 06:53:04,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:04,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:04,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:04,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:04,275 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states. [2020-09-25 06:53:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:04,986 INFO L93 Difference]: Finished difference Result 305 states and 311 transitions. [2020-09-25 06:53:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:53:04,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-25 06:53:04,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:04,993 INFO L225 Difference]: With dead ends: 305 [2020-09-25 06:53:04,994 INFO L226 Difference]: Without dead ends: 303 [2020-09-25 06:53:04,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:53:04,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-25 06:53:05,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192. [2020-09-25 06:53:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-25 06:53:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions. [2020-09-25 06:53:05,024 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64 [2020-09-25 06:53:05,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:05,026 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 197 transitions. [2020-09-25 06:53:05,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions. [2020-09-25 06:53:05,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 06:53:05,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:05,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:05,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:53:05,030 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:05,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-25 06:53:05,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:05,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343839988] [2020-09-25 06:53:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:05,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:05,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:05,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 06:53:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:53:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-09-25 06:53:05,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:05,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:05,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:53:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:05,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:05,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:05,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:05,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:05,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:05,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343839988] [2020-09-25 06:53:05,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:05,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:05,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689367421] [2020-09-25 06:53:05,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:05,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:05,673 INFO L87 Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states. [2020-09-25 06:53:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:06,767 INFO L93 Difference]: Finished difference Result 471 states and 480 transitions. [2020-09-25 06:53:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:53:06,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 06:53:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:06,776 INFO L225 Difference]: With dead ends: 471 [2020-09-25 06:53:06,776 INFO L226 Difference]: Without dead ends: 469 [2020-09-25 06:53:06,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:53:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-25 06:53:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197. [2020-09-25 06:53:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-25 06:53:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-25 06:53:06,788 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-25 06:53:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:06,788 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-25 06:53:06,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-25 06:53:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 06:53:06,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:06,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:06,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:53:06,791 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:06,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:06,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-25 06:53:06,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:06,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938278990] [2020-09-25 06:53:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:07,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:10,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:10,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 06:53:10,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:53:10,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4065 [2020-09-25 06:53:10,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:10,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:10,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 06:53:10,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 06:53:10,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:53:10,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:10,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:10,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:10,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:10,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:53:10,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:10,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:10,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938278990] [2020-09-25 06:53:10,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:10,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:10,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236524144] [2020-09-25 06:53:10,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:10,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:10,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:10,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:10,997 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-25 06:53:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:11,715 INFO L93 Difference]: Finished difference Result 298 states and 304 transitions. [2020-09-25 06:53:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:53:11,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-25 06:53:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:11,721 INFO L225 Difference]: With dead ends: 298 [2020-09-25 06:53:11,721 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 06:53:11,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:53:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 06:53:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 207. [2020-09-25 06:53:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-09-25 06:53:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 212 transitions. [2020-09-25 06:53:11,744 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 212 transitions. Word has length 69 [2020-09-25 06:53:11,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:11,744 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 212 transitions. [2020-09-25 06:53:11,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:11,745 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 212 transitions. [2020-09-25 06:53:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 06:53:11,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:11,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:11,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:53:11,758 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:11,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:11,759 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-25 06:53:11,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:11,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450067983] [2020-09-25 06:53:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:13,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:13,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:53:13,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:13,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1779 [2020-09-25 06:53:13,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:13,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 06:53:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:53:13,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:13,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:13,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:53:13,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:13,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:13,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:13,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450067983] [2020-09-25 06:53:13,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:13,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:13,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923465568] [2020-09-25 06:53:13,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:13,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:13,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:13,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:13,661 INFO L87 Difference]: Start difference. First operand 207 states and 212 transitions. Second operand 7 states. [2020-09-25 06:53:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:14,166 INFO L93 Difference]: Finished difference Result 316 states and 322 transitions. [2020-09-25 06:53:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:53:14,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 06:53:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:14,169 INFO L225 Difference]: With dead ends: 316 [2020-09-25 06:53:14,169 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 06:53:14,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:53:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 06:53:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 205. [2020-09-25 06:53:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-25 06:53:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 210 transitions. [2020-09-25 06:53:14,182 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 210 transitions. Word has length 74 [2020-09-25 06:53:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:14,182 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 210 transitions. [2020-09-25 06:53:14,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 210 transitions. [2020-09-25 06:53:14,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 06:53:14,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:14,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:14,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:53:14,186 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:14,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:14,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1017357829, now seen corresponding path program 1 times [2020-09-25 06:53:14,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:14,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [314910965] [2020-09-25 06:53:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:14,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:14,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:15,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:15,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:53:15,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1766 [2020-09-25 06:53:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:15,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 06:53:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:16,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:16,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:16,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:16,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:16,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:53:16,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:16,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:16,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [314910965] [2020-09-25 06:53:16,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:16,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:16,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718398207] [2020-09-25 06:53:16,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:16,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:16,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:16,051 INFO L87 Difference]: Start difference. First operand 205 states and 210 transitions. Second operand 7 states. [2020-09-25 06:53:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:16,312 INFO L93 Difference]: Finished difference Result 205 states and 210 transitions. [2020-09-25 06:53:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:53:16,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-25 06:53:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:16,314 INFO L225 Difference]: With dead ends: 205 [2020-09-25 06:53:16,314 INFO L226 Difference]: Without dead ends: 203 [2020-09-25 06:53:16,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:53:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-25 06:53:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2020-09-25 06:53:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 06:53:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-25 06:53:16,322 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-25 06:53:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:16,322 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-25 06:53:16,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:16,323 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-25 06:53:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 06:53:16,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:16,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:16,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:53:16,324 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:16,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-25 06:53:16,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:16,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820839804] [2020-09-25 06:53:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:16,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:16,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:18,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:18,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 06:53:18,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:53:18,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1838 [2020-09-25 06:53:18,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:18,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:53:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 06:53:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 06:53:18,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:18,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:18,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:18,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:18,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:18,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:18,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:18,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:18,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:18,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:18,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820839804] [2020-09-25 06:53:18,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:18,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:53:18,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340548017] [2020-09-25 06:53:18,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:53:18,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:18,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:53:18,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:53:18,226 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 4 states. [2020-09-25 06:53:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:18,506 INFO L93 Difference]: Finished difference Result 292 states and 298 transitions. [2020-09-25 06:53:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:53:18,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-09-25 06:53:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:18,508 INFO L225 Difference]: With dead ends: 292 [2020-09-25 06:53:18,509 INFO L226 Difference]: Without dead ends: 193 [2020-09-25 06:53:18,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:53:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-25 06:53:18,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-09-25 06:53:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-25 06:53:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2020-09-25 06:53:18,520 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 75 [2020-09-25 06:53:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:18,521 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2020-09-25 06:53:18,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:53:18,521 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2020-09-25 06:53:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 06:53:18,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:18,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:18,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:53:18,523 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:18,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:18,523 INFO L82 PathProgramCache]: Analyzing trace with hash 661067438, now seen corresponding path program 1 times [2020-09-25 06:53:18,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:18,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481382819] [2020-09-25 06:53:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:18,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:18,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:18,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:19,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 06:53:21,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:53:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2630 [2020-09-25 06:53:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:21,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:53:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:21,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 06:53:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:21,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:21,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:21,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:21,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:21,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:21,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:53:21,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:21,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:21,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:21,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:21,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:21,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481382819] [2020-09-25 06:53:21,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:21,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:53:21,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477895748] [2020-09-25 06:53:21,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:21,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:21,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:21,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:21,276 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 8 states. [2020-09-25 06:53:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:21,742 INFO L93 Difference]: Finished difference Result 193 states and 196 transitions. [2020-09-25 06:53:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:53:21,743 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-25 06:53:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:21,744 INFO L225 Difference]: With dead ends: 193 [2020-09-25 06:53:21,744 INFO L226 Difference]: Without dead ends: 191 [2020-09-25 06:53:21,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:53:21,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-25 06:53:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-09-25 06:53:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 06:53:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-09-25 06:53:21,753 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 80 [2020-09-25 06:53:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:21,754 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-09-25 06:53:21,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-09-25 06:53:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 06:53:21,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:21,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:21,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:53:21,756 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:21,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:21,757 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-25 06:53:21,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:21,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601074735] [2020-09-25 06:53:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:21,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:21,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:21,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:22,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:26,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:53:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:26,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 06:53:26,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:26,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:26,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:26,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:26,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:26,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:53:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:26,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:26,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601074735] [2020-09-25 06:53:26,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:26,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:53:26,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289106242] [2020-09-25 06:53:26,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:53:26,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:26,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:53:26,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:53:26,848 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2020-09-25 06:53:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:27,256 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2020-09-25 06:53:27,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:53:27,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-25 06:53:27,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:27,258 INFO L225 Difference]: With dead ends: 191 [2020-09-25 06:53:27,259 INFO L226 Difference]: Without dead ends: 189 [2020-09-25 06:53:27,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:53:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-25 06:53:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-25 06:53:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 06:53:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2020-09-25 06:53:27,271 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 85 [2020-09-25 06:53:27,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:27,272 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2020-09-25 06:53:27,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:53:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2020-09-25 06:53:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 06:53:27,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:27,274 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:27,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:53:27,276 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:27,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:27,276 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-25 06:53:27,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:27,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304508636] [2020-09-25 06:53:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:27,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:27,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:27,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2105 [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:53:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 06:53:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:29,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:29,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:29,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:29,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:29,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:29,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:53:29,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304508636] [2020-09-25 06:53:29,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:53:29,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:53:29,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455277802] [2020-09-25 06:53:29,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:29,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:29,514 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2020-09-25 06:53:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:30,120 INFO L93 Difference]: Finished difference Result 279 states and 283 transitions. [2020-09-25 06:53:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:53:30,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 06:53:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:30,122 INFO L225 Difference]: With dead ends: 279 [2020-09-25 06:53:30,123 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 06:53:30,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:53:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 06:53:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2020-09-25 06:53:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 06:53:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 185 transitions. [2020-09-25 06:53:30,132 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 185 transitions. Word has length 86 [2020-09-25 06:53:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:30,132 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 185 transitions. [2020-09-25 06:53:30,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 185 transitions. [2020-09-25 06:53:30,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 06:53:30,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:30,133 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:30,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:53:30,134 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:30,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:30,134 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-25 06:53:30,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:30,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301025604] [2020-09-25 06:53:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:30,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:32,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:32,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-25 06:53:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:53:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2169 [2020-09-25 06:53:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:32,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:53:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 06:53:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:53:32,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:32,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:32,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:32,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:32,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:53:32,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:32,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:32,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:32,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:53:32,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301025604] [2020-09-25 06:53:32,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:53:32,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:53:32,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739203402] [2020-09-25 06:53:32,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:32,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:32,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:32,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:32,418 INFO L87 Difference]: Start difference. First operand 182 states and 185 transitions. Second operand 8 states. [2020-09-25 06:53:32,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:32,779 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-09-25 06:53:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:53:32,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-25 06:53:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:32,781 INFO L225 Difference]: With dead ends: 182 [2020-09-25 06:53:32,781 INFO L226 Difference]: Without dead ends: 180 [2020-09-25 06:53:32,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:53:32,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-25 06:53:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2020-09-25 06:53:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 06:53:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-09-25 06:53:32,790 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 86 [2020-09-25 06:53:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:32,790 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-09-25 06:53:32,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:32,790 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-09-25 06:53:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 06:53:32,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:32,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:32,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:53:32,794 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:32,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:32,794 INFO L82 PathProgramCache]: Analyzing trace with hash -228867626, now seen corresponding path program 1 times [2020-09-25 06:53:32,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:32,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477795851] [2020-09-25 06:53:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:32,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:32,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:32,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:32,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:33,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:33,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:33,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:37,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 06:53:37,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:53:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 06:53:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:37,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:53:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 06:53:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:53:37,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:37,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:37,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:37,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:37,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:53:37,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:37,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:37,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477795851] [2020-09-25 06:53:37,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:37,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:53:37,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782011656] [2020-09-25 06:53:37,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:37,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:37,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:37,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:37,941 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 8 states. [2020-09-25 06:53:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:38,486 INFO L93 Difference]: Finished difference Result 169 states and 171 transitions. [2020-09-25 06:53:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:53:38,486 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-25 06:53:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:38,488 INFO L225 Difference]: With dead ends: 169 [2020-09-25 06:53:38,488 INFO L226 Difference]: Without dead ends: 167 [2020-09-25 06:53:38,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:53:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-25 06:53:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-09-25 06:53:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-25 06:53:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2020-09-25 06:53:38,495 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 99 [2020-09-25 06:53:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:38,495 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2020-09-25 06:53:38,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2020-09-25 06:53:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 06:53:38,496 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:38,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:38,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 06:53:38,497 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:38,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:38,497 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-25 06:53:38,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:38,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930496104] [2020-09-25 06:53:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:38,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:38,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:38,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:38,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:38,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:43,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:43,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:53:43,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:53:43,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:53:43,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:43,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:53:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:43,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:53:43,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:53:43,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:53:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:53:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:53:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:53:43,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930496104] [2020-09-25 06:53:43,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:53:43,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:53:43,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817180838] [2020-09-25 06:53:43,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:53:43,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:53:43,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:53:43,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:53:43,596 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand 8 states. [2020-09-25 06:53:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:53:44,145 INFO L93 Difference]: Finished difference Result 207 states and 210 transitions. [2020-09-25 06:53:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:53:44,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-09-25 06:53:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:53:44,148 INFO L225 Difference]: With dead ends: 207 [2020-09-25 06:53:44,149 INFO L226 Difference]: Without dead ends: 205 [2020-09-25 06:53:44,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:53:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-25 06:53:44,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-25 06:53:44,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 06:53:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2020-09-25 06:53:44,156 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 104 [2020-09-25 06:53:44,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:53:44,156 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2020-09-25 06:53:44,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:53:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2020-09-25 06:53:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 06:53:44,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:53:44,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:53:44,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 06:53:44,158 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:53:44,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:53:44,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1039394916, now seen corresponding path program 1 times [2020-09-25 06:53:44,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:53:44,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696332380] [2020-09-25 06:53:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:53:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:53:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:44,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:45,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:45,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:53:45,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking...