/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:35:10,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:35:10,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:35:10,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:35:10,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:35:10,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:35:10,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:35:10,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:35:10,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:35:10,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:35:10,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:35:10,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:35:10,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:35:10,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:35:10,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:35:10,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:35:10,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:35:10,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:35:10,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:35:10,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:35:10,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:35:10,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:35:10,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:35:10,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:35:10,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:35:10,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:35:10,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:35:10,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:35:10,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:35:10,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:35:10,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:35:10,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:35:10,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:35:10,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:35:10,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:35:10,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:35:10,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:35:10,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:35:10,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:35:10,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:35:10,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:35:10,549 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 13:35:10,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:35:10,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:35:10,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:35:10,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:35:10,604 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:35:10,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:35:10,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:35:10,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:35:10,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:35:10,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:35:10,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:35:10,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:35:10,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:35:10,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:35:10,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:35:10,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:35:10,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:35:10,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:35:10,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:35:10,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:35:10,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:35:10,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:35:10,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:35:10,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:35:10,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:35:10,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:35:10,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:35:10,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:35:10,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:35:10,611 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:35:11,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:35:11,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:35:11,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:35:11,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:35:11,091 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:35:11,092 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-09-25 13:35:11,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bf80ac0b/fdc2fdb491e34421a47b56a31e8dbf2b/FLAG2057968b5 [2020-09-25 13:35:11,831 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:35:11,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-09-25 13:35:11,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bf80ac0b/fdc2fdb491e34421a47b56a31e8dbf2b/FLAG2057968b5 [2020-09-25 13:35:12,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6bf80ac0b/fdc2fdb491e34421a47b56a31e8dbf2b [2020-09-25 13:35:12,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:35:12,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:35:12,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:35:12,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:35:12,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:35:12,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12, skipping insertion in model container [2020-09-25 13:35:12,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:35:12,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:35:12,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:35:12,639 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:35:12,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:35:12,885 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:35:12,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12 WrapperNode [2020-09-25 13:35:12,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:35:12,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:35:12,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:35:12,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:35:12,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (1/1) ... [2020-09-25 13:35:12,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:35:12,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:35:13,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:35:13,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:35:13,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (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 13:35:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:35:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:35:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 13:35:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:35:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 13:35:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:35:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:35:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 13:35:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:35:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:35:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:35:14,563 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:35:14,563 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:35:14,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:35:14 BoogieIcfgContainer [2020-09-25 13:35:14,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:35:14,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:35:14,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:35:14,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:35:14,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:35:12" (1/3) ... [2020-09-25 13:35:14,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374bbd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:35:14, skipping insertion in model container [2020-09-25 13:35:14,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:35:12" (2/3) ... [2020-09-25 13:35:14,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374bbd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:35:14, skipping insertion in model container [2020-09-25 13:35:14,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:35:14" (3/3) ... [2020-09-25 13:35:14,584 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-09-25 13:35:14,598 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:35:14,610 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:35:14,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:35:14,672 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:35:14,673 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:35:14,673 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:35:14,673 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:35:14,673 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:35:14,673 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:35:14,674 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:35:14,674 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:35:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 13:35:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 13:35:14,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:14,719 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] [2020-09-25 13:35:14,720 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:14,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:14,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1037847345, now seen corresponding path program 1 times [2020-09-25 13:35:14,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:14,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914305392] [2020-09-25 13:35:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:14,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:15,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:15,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 13:35:15,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:35:15,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-09-25 13:35:15,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:15,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:35:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:35:15,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 13:35:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:35:16,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:16,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:16,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:35:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:16,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:35:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:16,064 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 13:35:16,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914305392] [2020-09-25 13:35:16,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:35:16,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:35:16,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562870660] [2020-09-25 13:35:16,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:35:16,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:16,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:35:16,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:35:16,096 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 13:35:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:18,209 INFO L93 Difference]: Finished difference Result 1160 states and 1585 transitions. [2020-09-25 13:35:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:35:18,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-25 13:35:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:18,235 INFO L225 Difference]: With dead ends: 1160 [2020-09-25 13:35:18,236 INFO L226 Difference]: Without dead ends: 631 [2020-09-25 13:35:18,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 13:35:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2020-09-25 13:35:18,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 576. [2020-09-25 13:35:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-09-25 13:35:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 708 transitions. [2020-09-25 13:35:18,350 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 708 transitions. Word has length 57 [2020-09-25 13:35:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:18,351 INFO L479 AbstractCegarLoop]: Abstraction has 576 states and 708 transitions. [2020-09-25 13:35:18,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:35:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 708 transitions. [2020-09-25 13:35:18,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-25 13:35:18,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:18,361 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:18,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:35:18,361 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:18,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:18,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1358485705, now seen corresponding path program 1 times [2020-09-25 13:35:18,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:18,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169188702] [2020-09-25 13:35:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:18,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:19,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:19,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:23,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:23,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:35:23,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:35:23,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:35:23,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:23,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:35:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:35:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 13:35:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:23,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:23,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:23,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:23,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 13:35:23,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:23,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:35:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:23,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:23,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 13:35:23,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 13:35:23,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:23,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:35:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:35:23,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169188702] [2020-09-25 13:35:23,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:35:23,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:35:23,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637724011] [2020-09-25 13:35:23,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:35:23,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:23,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:35:23,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:35:23,851 INFO L87 Difference]: Start difference. First operand 576 states and 708 transitions. Second operand 7 states. [2020-09-25 13:35:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:26,042 INFO L93 Difference]: Finished difference Result 1330 states and 1655 transitions. [2020-09-25 13:35:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:35:26,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-09-25 13:35:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:26,049 INFO L225 Difference]: With dead ends: 1330 [2020-09-25 13:35:26,049 INFO L226 Difference]: Without dead ends: 769 [2020-09-25 13:35:26,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:35:26,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-09-25 13:35:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 731. [2020-09-25 13:35:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-09-25 13:35:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 902 transitions. [2020-09-25 13:35:26,105 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 902 transitions. Word has length 140 [2020-09-25 13:35:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:26,106 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 902 transitions. [2020-09-25 13:35:26,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:35:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 902 transitions. [2020-09-25 13:35:26,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-25 13:35:26,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:26,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:26,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:35:26,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:26,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:26,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1711199918, now seen corresponding path program 1 times [2020-09-25 13:35:26,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:26,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381870199] [2020-09-25 13:35:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:26,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:26,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:26,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:27,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:27,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:27,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:27,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:31,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:31,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 13:35:31,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:35:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4852 [2020-09-25 13:35:31,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:31,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:35:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 13:35:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 13:35:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:31,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:31,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:31,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:31,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:31,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:35:31,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:31,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:35:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:31,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:31,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:31,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 13:35:31,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:31,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 13:35:31,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:31,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:31,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:35:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:35:31,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381870199] [2020-09-25 13:35:31,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:35:31,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:35:31,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605957809] [2020-09-25 13:35:31,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:35:31,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:31,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:35:31,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:35:31,374 INFO L87 Difference]: Start difference. First operand 731 states and 902 transitions. Second operand 7 states. [2020-09-25 13:35:33,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:33,892 INFO L93 Difference]: Finished difference Result 1828 states and 2362 transitions. [2020-09-25 13:35:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:35:33,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-09-25 13:35:33,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:33,901 INFO L225 Difference]: With dead ends: 1828 [2020-09-25 13:35:33,901 INFO L226 Difference]: Without dead ends: 1112 [2020-09-25 13:35:33,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:35:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2020-09-25 13:35:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1050. [2020-09-25 13:35:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-09-25 13:35:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1254 transitions. [2020-09-25 13:35:33,948 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1254 transitions. Word has length 140 [2020-09-25 13:35:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:33,949 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1254 transitions. [2020-09-25 13:35:33,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:35:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1254 transitions. [2020-09-25 13:35:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 13:35:33,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:33,952 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:33,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:35:33,953 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:33,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:33,953 INFO L82 PathProgramCache]: Analyzing trace with hash -861467326, now seen corresponding path program 1 times [2020-09-25 13:35:33,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:33,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097805029] [2020-09-25 13:35:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:34,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:34,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:35,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:35,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:38,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:38,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4088 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:35:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 13:35:38,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:38,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:38,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:38,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:38,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:35:38,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:38,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:35:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:38,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:38,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:38,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:35:38,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:38,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 13:35:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:38,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:35:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 13:35:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:35:38,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097805029] [2020-09-25 13:35:38,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:35:38,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:35:38,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191715351] [2020-09-25 13:35:38,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:35:38,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:38,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:35:38,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:35:38,575 INFO L87 Difference]: Start difference. First operand 1050 states and 1254 transitions. Second operand 8 states. [2020-09-25 13:35:42,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:42,132 INFO L93 Difference]: Finished difference Result 2709 states and 3389 transitions. [2020-09-25 13:35:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:35:42,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-25 13:35:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:42,145 INFO L225 Difference]: With dead ends: 2709 [2020-09-25 13:35:42,145 INFO L226 Difference]: Without dead ends: 1824 [2020-09-25 13:35:42,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:35:42,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-09-25 13:35:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1724. [2020-09-25 13:35:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2020-09-25 13:35:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2118 transitions. [2020-09-25 13:35:42,217 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2118 transitions. Word has length 146 [2020-09-25 13:35:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:42,219 INFO L479 AbstractCegarLoop]: Abstraction has 1724 states and 2118 transitions. [2020-09-25 13:35:42,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:35:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2118 transitions. [2020-09-25 13:35:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 13:35:42,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:42,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:35:42,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:35:42,223 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:42,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash -764978616, now seen corresponding path program 1 times [2020-09-25 13:35:42,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:42,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101699711] [2020-09-25 13:35:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:42,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:42,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:42,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:43,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:43,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:35:43,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:35:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1269 [2020-09-25 13:35:43,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:43,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:43,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:35:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:35:43,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 13:35:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:43,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:43,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:43,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:43,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:35:43,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:43,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:43,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:35:43,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:43,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:43,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:43,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:43,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 13:35:43,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 13:35:43,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:43,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 13:35:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:35:43,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101699711] [2020-09-25 13:35:43,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:35:43,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:35:43,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069720629] [2020-09-25 13:35:43,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:35:43,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:43,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:35:43,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:35:43,991 INFO L87 Difference]: Start difference. First operand 1724 states and 2118 transitions. Second operand 7 states. [2020-09-25 13:35:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:46,029 INFO L93 Difference]: Finished difference Result 4257 states and 5519 transitions. [2020-09-25 13:35:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:35:46,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-09-25 13:35:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:46,045 INFO L225 Difference]: With dead ends: 4257 [2020-09-25 13:35:46,045 INFO L226 Difference]: Without dead ends: 2698 [2020-09-25 13:35:46,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:35:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2020-09-25 13:35:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2682. [2020-09-25 13:35:46,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2682 states. [2020-09-25 13:35:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3391 transitions. [2020-09-25 13:35:46,127 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3391 transitions. Word has length 162 [2020-09-25 13:35:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:46,127 INFO L479 AbstractCegarLoop]: Abstraction has 2682 states and 3391 transitions. [2020-09-25 13:35:46,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:35:46,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3391 transitions. [2020-09-25 13:35:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 13:35:46,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:46,133 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:35:46,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:35:46,133 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:46,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:46,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1687252463, now seen corresponding path program 1 times [2020-09-25 13:35:46,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:46,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911432490] [2020-09-25 13:35:46,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:46,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:46,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:47,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:48,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:51,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:51,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:35:51,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-25 13:35:51,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:35:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:51,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:35:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:35:51,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:35:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:51,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:35:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:51,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:51,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 13:35:51,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 13:35:51,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:51,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:35:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:51,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:35:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:35:51,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:35:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:35:51,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:35:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:35:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:35:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 13:35:51,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:35:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-25 13:35:51,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911432490] [2020-09-25 13:35:51,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:35:51,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:35:51,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142162918] [2020-09-25 13:35:51,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:35:51,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:35:51,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:35:51,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:35:51,743 INFO L87 Difference]: Start difference. First operand 2682 states and 3391 transitions. Second operand 9 states. [2020-09-25 13:35:56,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:35:56,078 INFO L93 Difference]: Finished difference Result 6766 states and 8940 transitions. [2020-09-25 13:35:56,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:35:56,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2020-09-25 13:35:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:35:56,104 INFO L225 Difference]: With dead ends: 6766 [2020-09-25 13:35:56,104 INFO L226 Difference]: Without dead ends: 4249 [2020-09-25 13:35:56,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:35:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4249 states. [2020-09-25 13:35:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4249 to 3987. [2020-09-25 13:35:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3987 states. [2020-09-25 13:35:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 5100 transitions. [2020-09-25 13:35:56,241 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 5100 transitions. Word has length 225 [2020-09-25 13:35:56,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:35:56,242 INFO L479 AbstractCegarLoop]: Abstraction has 3987 states and 5100 transitions. [2020-09-25 13:35:56,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:35:56,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 5100 transitions. [2020-09-25 13:35:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-25 13:35:56,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:35:56,248 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:35:56,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:35:56,248 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:35:56,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:35:56,249 INFO L82 PathProgramCache]: Analyzing trace with hash -808700956, now seen corresponding path program 1 times [2020-09-25 13:35:56,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:35:56,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609340568] [2020-09-25 13:35:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:35:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:35:56,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:56,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:56,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:57,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:35:58,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:01,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:01,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 13:36:01,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:36:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 13:36:01,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:01,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:36:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:36:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-09-25 13:36:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:01,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:36:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:01,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:01,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:01,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 13:36:01,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:36:01,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:36:01,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:01,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:36:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:01,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:36:01,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:01,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 13:36:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:01,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:01,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:36:01,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:36:01,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:36:01,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 13:36:01,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:36:01,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:36:01,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:36:01,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:36:01,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:36:01,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:36:01,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 13:36:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:36:01,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:36:01,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking...