/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:46:01,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:46:01,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:46:01,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:46:01,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:46:01,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:46:01,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:46:01,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:46:01,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:46:01,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:46:01,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:46:01,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:46:01,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:46:01,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:46:01,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:46:01,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:46:01,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:46:01,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:46:01,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:46:01,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:46:01,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:46:01,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:46:01,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:46:01,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:46:01,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:46:01,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:46:01,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:46:01,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:46:01,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:46:01,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:46:01,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:46:01,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:46:01,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:46:01,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:46:01,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:46:01,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:46:01,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:46:01,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:46:01,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:46:01,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:46:01,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:46:01,097 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 [2020-09-24 23:46:01,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:46:01,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:46:01,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:46:01,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:46:01,127 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:46:01,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:46:01,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:46:01,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:46:01,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:46:01,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:46:01,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:46:01,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:46:01,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:46:01,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:46:01,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:46:01,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:46:01,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:46:01,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:46:01,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:46:01,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:46:01,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:46:01,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:01,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:46:01,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:46:01,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:46:01,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:46:01,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:46:01,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:46:01,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:46:01,132 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:46:01,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:46:01,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:46:01,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:46:01,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:46:01,635 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:46:01,636 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-24 23:46:01,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2a2e383/4b1cb51e7fc64503beca1e0fb64794d4/FLAGe05c62852 [2020-09-24 23:46:02,238 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:46:02,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-1.c [2020-09-24 23:46:02,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2a2e383/4b1cb51e7fc64503beca1e0fb64794d4/FLAGe05c62852 [2020-09-24 23:46:02,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f2a2e383/4b1cb51e7fc64503beca1e0fb64794d4 [2020-09-24 23:46:02,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:46:02,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:46:02,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:02,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:46:02,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:46:02,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02, skipping insertion in model container [2020-09-24 23:46:02,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:46:02,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:46:02,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:02,901 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:46:02,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:02,940 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:46:02,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02 WrapperNode [2020-09-24 23:46:02,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:02,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:46:02,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:46:02,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:46:02,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... [2020-09-24 23:46:02,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:46:02,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:46:02,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:46:02,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:46:02,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:03,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:46:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:46:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:46:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:46:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:46:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:46:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:46:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:46:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:46:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:46:03,367 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:46:03,368 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:46:03,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:03 BoogieIcfgContainer [2020-09-24 23:46:03,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:46:03,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:46:03,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:46:03,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:46:03,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:46:02" (1/3) ... [2020-09-24 23:46:03,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4cf838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:03, skipping insertion in model container [2020-09-24 23:46:03,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:02" (2/3) ... [2020-09-24 23:46:03,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4cf838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:03, skipping insertion in model container [2020-09-24 23:46:03,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:03" (3/3) ... [2020-09-24 23:46:03,385 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-1.c [2020-09-24 23:46:03,396 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:46:03,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:46:03,427 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:46:03,457 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:46:03,457 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:46:03,458 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:46:03,458 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:46:03,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:46:03,458 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:46:03,458 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:46:03,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:46:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:46:03,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:46:03,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:03,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:03,489 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:03,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:46:03,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:03,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497359492] [2020-09-24 23:46:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:03,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:46:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:03,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 23:46:03,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:03,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:46:03,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:03,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:03,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:03,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:03,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:46:03,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:03,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:03,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:03,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:03,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:03,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:03,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:03,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:03,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:46:03,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:03,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:03,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:03,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:03,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497359492] [2020-09-24 23:46:03,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:03,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:03,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255983272] [2020-09-24 23:46:03,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:03,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:03,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:03,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:03,941 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:46:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:04,067 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:46:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:04,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:46:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:04,083 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:04,083 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:46:04,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:46:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:46:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:04,139 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:46:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:04,139 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:04,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:04,140 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:46:04,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:04,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:04,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:46:04,143 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:04,143 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:46:04,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:04,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317248688] [2020-09-24 23:46:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:46:04,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 23:46:04,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:04,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:04,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:04,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:04,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:04,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:04,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 23:46:04,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:04,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:04,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:46:04,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317248688] [2020-09-24 23:46:04,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:04,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:04,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143241739] [2020-09-24 23:46:04,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:04,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:04,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:04,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:04,463 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:46:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:04,531 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:46:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:04,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:46:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:04,534 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:46:04,534 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:46:04,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:46:04,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:46:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:46:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:46:04,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:46:04,547 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:46:04,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:04,548 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:46:04,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:46:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:46:04,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:04,550 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:04,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:46:04,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:04,551 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:46:04,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:04,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220911941] [2020-09-24 23:46:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:46:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-09-24 23:46:05,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:46:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:05,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:05,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:05,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:05,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:05,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:05,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:05,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:05,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:05,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:05,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 23:46:05,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:05,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:05,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:05,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:05,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:05,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:46:05,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:05,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:05,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220911941] [2020-09-24 23:46:05,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:05,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:05,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292870320] [2020-09-24 23:46:05,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:05,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:05,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:05,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:05,544 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:46:05,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:05,731 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:46:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:46:05,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:46:05,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:05,734 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:46:05,734 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:46:05,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:46:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:46:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:46:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:46:05,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:46:05,745 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:46:05,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:05,746 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:46:05,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:46:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:46:05,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:05,748 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:05,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:46:05,749 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:05,749 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:46:05,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:05,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032899365] [2020-09-24 23:46:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:05,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:05,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:46:06,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-09-24 23:46:06,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:46:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:06,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:06,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:06,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:06,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:06,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:06,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:46:06,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-24 23:46:06,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:46:06,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:06,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:06,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:06,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:06,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:06,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:46:06,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:06,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:07,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:07,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:46:07,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032899365] [2020-09-24 23:46:07,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:07,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:46:07,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491437893] [2020-09-24 23:46:07,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:46:07,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:07,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:46:07,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:46:07,036 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 23:46:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:07,178 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-24 23:46:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:46:07,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 23:46:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:07,182 INFO L225 Difference]: With dead ends: 88 [2020-09-24 23:46:07,182 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 23:46:07,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:46:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 23:46:07,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-24 23:46:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 23:46:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-24 23:46:07,199 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-24 23:46:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:07,200 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-24 23:46:07,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:46:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-24 23:46:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 23:46:07,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:07,204 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-24 23:46:07,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:46:07,204 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:07,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:07,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-24 23:46:07,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:07,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199679851] [2020-09-24 23:46:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:07,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:07,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:12,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:46:12,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:46:12,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:46:12,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:46:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:12,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:12,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:12,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:12,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:12,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:12,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:12,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:13,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 23:46:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:46:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3141 [2020-09-24 23:46:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:46:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:15,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:15,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-09-24 23:46:15,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:15,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:15,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:15,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:15,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:15,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:15,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:15,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:15,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:15,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:15,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:15,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:15,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:15,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:15,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 23:46:15,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199679851] [2020-09-24 23:46:15,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:15,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:46:15,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023564799] [2020-09-24 23:46:15,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:46:15,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:15,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:46:15,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:46:15,873 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 9 states. [2020-09-24 23:46:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:16,122 INFO L93 Difference]: Finished difference Result 122 states and 193 transitions. [2020-09-24 23:46:16,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:46:16,123 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-24 23:46:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:16,130 INFO L225 Difference]: With dead ends: 122 [2020-09-24 23:46:16,130 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 23:46:16,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:46:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 23:46:16,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2020-09-24 23:46:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 23:46:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-09-24 23:46:16,159 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 51 [2020-09-24 23:46:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:16,160 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-09-24 23:46:16,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:46:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-09-24 23:46:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 23:46:16,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:16,166 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:16,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:46:16,167 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:16,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1437641953, now seen corresponding path program 2 times [2020-09-24 23:46:16,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:16,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965754560] [2020-09-24 23:46:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:16,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:16,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:17,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-24 23:46:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:46:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 23:46:21,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:46:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:46:21,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:21,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:21,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:21,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:21,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:21,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:21,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:21,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:25,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:26,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 23:46:26,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 23:46:26,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 23:46:26,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:26,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:46:26,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:46:26,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 23:46:26,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:26,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:26,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:27,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 23:46:29,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3130 [2020-09-24 23:46:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:46:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:46:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:29,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:29,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:46:29,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:29,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:29,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:29,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:46:29,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:29,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:29,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 23:46:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:34,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 23:46:34,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:46:34,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:46:34,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:34,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:46:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:34,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:34,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:34,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:46:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:46:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:46:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:46:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:46:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:46:36,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:36,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 23:46:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:36,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:36,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:36,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:36,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:36,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:46:36,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 126 proven. 198 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2020-09-24 23:46:36,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965754560] [2020-09-24 23:46:36,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:46:36,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 23:46:36,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702698164] [2020-09-24 23:46:36,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 23:46:36,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:36,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 23:46:36,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:46:36,610 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 19 states. [2020-09-24 23:46:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:37,233 INFO L93 Difference]: Finished difference Result 179 states and 340 transitions. [2020-09-24 23:46:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:46:37,233 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 121 [2020-09-24 23:46:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:37,236 INFO L225 Difference]: With dead ends: 179 [2020-09-24 23:46:37,236 INFO L226 Difference]: Without dead ends: 101 [2020-09-24 23:46:37,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-09-24 23:46:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-24 23:46:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2020-09-24 23:46:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-24 23:46:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2020-09-24 23:46:37,253 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 121 [2020-09-24 23:46:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:37,253 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2020-09-24 23:46:37,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 23:46:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2020-09-24 23:46:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 23:46:37,256 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:37,256 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:37,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:46:37,257 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:37,257 INFO L82 PathProgramCache]: Analyzing trace with hash -527666429, now seen corresponding path program 3 times [2020-09-24 23:46:37,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:37,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121635311] [2020-09-24 23:46:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:37,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:37,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 23:46:42,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:46:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:46:42,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:46:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:46:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:42,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:42,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:46,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 23:46:47,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-24 23:46:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:46:47,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:46:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:46:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 23:46:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:46:47,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:46:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-24 23:46:47,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:47,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:46:47,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:47,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:47,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:46:47,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:46:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:46:47,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:46:47,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:46:47,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:46:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:46:47,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:46:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:47,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:47,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:46:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:47,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:46:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:47,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 23:46:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:47,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:48,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:50,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking...