/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:29:59,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:29:59,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:29:59,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:29:59,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:29:59,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:29:59,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:29:59,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:29:59,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:29:59,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:29:59,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:29:59,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:29:59,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:29:59,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:29:59,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:29:59,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:29:59,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:29:59,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:29:59,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:29:59,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:29:59,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:29:59,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:29:59,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:29:59,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:29:59,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:29:59,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:29:59,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:29:59,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:29:59,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:29:59,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:29:59,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:29:59,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:29:59,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:29:59,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:29:59,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:29:59,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:29:59,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:29:59,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:29:59,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:29:59,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:29:59,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:29:59,209 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 18:29:59,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:29:59,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:29:59,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:29:59,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:29:59,237 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:29:59,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:29:59,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:29:59,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:29:59,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:29:59,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:29:59,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:29:59,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:29:59,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:29:59,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:29:59,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:29:59,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:29:59,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:29:59,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:29:59,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:29:59,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:29:59,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:29:59,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:59,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:29:59,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:29:59,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:29:59,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:29:59,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:29:59,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:29:59,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:29:59,242 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:29:59,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:29:59,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:29:59,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:29:59,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:29:59,778 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:29:59,779 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 18:29:59,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eece21446/34cd84b2f856446aa3652fb99115bdfb/FLAG0acd1ee52 [2020-09-24 18:30:00,411 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:30:00,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 18:30:00,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eece21446/34cd84b2f856446aa3652fb99115bdfb/FLAG0acd1ee52 [2020-09-24 18:30:00,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eece21446/34cd84b2f856446aa3652fb99115bdfb [2020-09-24 18:30:00,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:30:00,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:30:00,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:00,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:30:00,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:30:00,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:00,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d7fa3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:00, skipping insertion in model container [2020-09-24 18:30:00,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:30:00" (1/1) ... [2020-09-24 18:30:00,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:30:00,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:30:01,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:01,160 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:30:01,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:30:01,268 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:30:01,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01 WrapperNode [2020-09-24 18:30:01,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:30:01,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:30:01,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:30:01,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:30:01,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (1/1) ... [2020-09-24 18:30:01,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:30:01,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:30:01,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:30:01,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:30:01,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (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 18:30:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:30:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:30:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:30:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:30:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:30:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:30:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:30:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:30:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:30:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:30:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:30:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:30:02,065 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:30:02,065 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:30:02,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:02 BoogieIcfgContainer [2020-09-24 18:30:02,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:30:02,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:30:02,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:30:02,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:30:02,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:30:00" (1/3) ... [2020-09-24 18:30:02,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fc296c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:02, skipping insertion in model container [2020-09-24 18:30:02,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:30:01" (2/3) ... [2020-09-24 18:30:02,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fc296c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:30:02, skipping insertion in model container [2020-09-24 18:30:02,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:30:02" (3/3) ... [2020-09-24 18:30:02,083 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-09-24 18:30:02,095 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:30:02,106 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-09-24 18:30:02,128 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-09-24 18:30:02,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:30:02,164 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:30:02,164 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:30:02,164 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:30:02,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:30:02,165 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:30:02,165 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:30:02,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:30:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-24 18:30:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 18:30:02,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:02,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:02,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:02,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:02,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times [2020-09-24 18:30:02,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:02,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051985683] [2020-09-24 18:30:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 18:30:02,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-24 18:30:02,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:30:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:30:02,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:02,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:02,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:02,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:02,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:02,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:02,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:02,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:02,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:02,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:02,885 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 18:30:02,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051985683] [2020-09-24 18:30:02,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:02,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:02,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560214257] [2020-09-24 18:30:02,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:02,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:02,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:02,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:02,917 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 7 states. [2020-09-24 18:30:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:03,801 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2020-09-24 18:30:03,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:30:03,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 18:30:03,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:03,826 INFO L225 Difference]: With dead ends: 290 [2020-09-24 18:30:03,826 INFO L226 Difference]: Without dead ends: 239 [2020-09-24 18:30:03,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:30:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-09-24 18:30:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187. [2020-09-24 18:30:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 18:30:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions. [2020-09-24 18:30:03,919 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38 [2020-09-24 18:30:03,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:03,919 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 190 transitions. [2020-09-24 18:30:03,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions. [2020-09-24 18:30:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 18:30:03,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:03,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:03,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:30:03,922 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:03,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:03,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times [2020-09-24 18:30:03,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:03,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410443090] [2020-09-24 18:30:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:03,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:30:04,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 18:30:04,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:04,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:30:04,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:04,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:30:04,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:04,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:30:04,310 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 18:30:04,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410443090] [2020-09-24 18:30:04,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:04,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:04,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835131426] [2020-09-24 18:30:04,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:04,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:04,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:04,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:04,318 INFO L87 Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states. [2020-09-24 18:30:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:04,624 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2020-09-24 18:30:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:04,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 18:30:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:04,626 INFO L225 Difference]: With dead ends: 187 [2020-09-24 18:30:04,626 INFO L226 Difference]: Without dead ends: 185 [2020-09-24 18:30:04,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-24 18:30:04,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-09-24 18:30:04,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-24 18:30:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions. [2020-09-24 18:30:04,647 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43 [2020-09-24 18:30:04,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:04,648 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 188 transitions. [2020-09-24 18:30:04,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions. [2020-09-24 18:30:04,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 18:30:04,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:04,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:04,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:30:04,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:04,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:04,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times [2020-09-24 18:30:04,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:04,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102225560] [2020-09-24 18:30:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 18:30:04,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 18:30:04,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:30:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:04,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:04,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:04,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:04,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:04,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:04,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:04,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:04,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:04,853 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 18:30:04,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102225560] [2020-09-24 18:30:04,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:04,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:04,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345265636] [2020-09-24 18:30:04,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:04,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:04,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:04,856 INFO L87 Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states. [2020-09-24 18:30:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:05,349 INFO L93 Difference]: Finished difference Result 237 states and 242 transitions. [2020-09-24 18:30:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:05,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-24 18:30:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:05,353 INFO L225 Difference]: With dead ends: 237 [2020-09-24 18:30:05,354 INFO L226 Difference]: Without dead ends: 235 [2020-09-24 18:30:05,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-24 18:30:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183. [2020-09-24 18:30:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-09-24 18:30:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions. [2020-09-24 18:30:05,379 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53 [2020-09-24 18:30:05,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:05,382 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 186 transitions. [2020-09-24 18:30:05,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions. [2020-09-24 18:30:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 18:30:05,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:05,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:05,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:30:05,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:05,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:05,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times [2020-09-24 18:30:05,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:05,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117923458] [2020-09-24 18:30:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 18:30:05,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-24 18:30:05,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:05,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 18:30:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:30:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:05,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:05,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:05,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:05,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:30:05,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:05,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:05,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:05,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:05,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:05,979 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 18:30:05,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117923458] [2020-09-24 18:30:05,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:05,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:05,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587666672] [2020-09-24 18:30:05,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:05,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:05,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:05,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:05,989 INFO L87 Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states. [2020-09-24 18:30:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:06,218 INFO L93 Difference]: Finished difference Result 183 states and 186 transitions. [2020-09-24 18:30:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:06,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-24 18:30:06,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:06,220 INFO L225 Difference]: With dead ends: 183 [2020-09-24 18:30:06,220 INFO L226 Difference]: Without dead ends: 181 [2020-09-24 18:30:06,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:06,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-24 18:30:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-24 18:30:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 18:30:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2020-09-24 18:30:06,229 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58 [2020-09-24 18:30:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:06,230 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2020-09-24 18:30:06,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2020-09-24 18:30:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 18:30:06,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:06,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:06,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:30:06,233 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:06,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times [2020-09-24 18:30:06,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:06,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249434820] [2020-09-24 18:30:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:06,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 18:30:06,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-24 18:30:06,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:30:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 18:30:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:30:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:06,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:06,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:06,703 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 18:30:06,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249434820] [2020-09-24 18:30:06,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:06,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:30:06,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000583856] [2020-09-24 18:30:06,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:30:06,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:06,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:30:06,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:30:06,705 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 6 states. [2020-09-24 18:30:07,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:07,347 INFO L93 Difference]: Finished difference Result 284 states and 288 transitions. [2020-09-24 18:30:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:07,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-09-24 18:30:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:07,352 INFO L225 Difference]: With dead ends: 284 [2020-09-24 18:30:07,352 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 18:30:07,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:30:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 18:30:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 186. [2020-09-24 18:30:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-09-24 18:30:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 189 transitions. [2020-09-24 18:30:07,368 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 189 transitions. Word has length 64 [2020-09-24 18:30:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:07,369 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 189 transitions. [2020-09-24 18:30:07,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:30:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 189 transitions. [2020-09-24 18:30:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 18:30:07,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:07,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:07,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:30:07,371 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:07,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times [2020-09-24 18:30:07,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:07,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861288797] [2020-09-24 18:30:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:30:07,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:07,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-09-24 18:30:07,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:07,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 18:30:07,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:07,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:07,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:07,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:07,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:07,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:07,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:07,922 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 18:30:07,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861288797] [2020-09-24 18:30:07,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:07,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:07,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61694642] [2020-09-24 18:30:07,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:07,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:07,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:07,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:07,925 INFO L87 Difference]: Start difference. First operand 186 states and 189 transitions. Second operand 7 states. [2020-09-24 18:30:08,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:08,926 INFO L93 Difference]: Finished difference Result 478 states and 487 transitions. [2020-09-24 18:30:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 18:30:08,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 18:30:08,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:08,929 INFO L225 Difference]: With dead ends: 478 [2020-09-24 18:30:08,929 INFO L226 Difference]: Without dead ends: 476 [2020-09-24 18:30:08,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:30:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-24 18:30:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 197. [2020-09-24 18:30:08,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 18:30:08,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 18:30:08,941 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 18:30:08,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:08,941 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 18:30:08,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 18:30:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 18:30:08,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:08,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:08,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:30:08,944 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:08,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:08,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1904710263, now seen corresponding path program 1 times [2020-09-24 18:30:08,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:08,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11124842] [2020-09-24 18:30:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:30:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:30:09,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-24 18:30:09,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:09,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 18:30:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:09,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:09,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:09,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:09,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:09,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:09,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:09,474 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 18:30:09,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11124842] [2020-09-24 18:30:09,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:09,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:09,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583959122] [2020-09-24 18:30:09,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:09,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:09,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:09,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:09,476 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-24 18:30:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:10,146 INFO L93 Difference]: Finished difference Result 308 states and 314 transitions. [2020-09-24 18:30:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:30:10,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 18:30:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:10,149 INFO L225 Difference]: With dead ends: 308 [2020-09-24 18:30:10,149 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 18:30:10,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:30:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 18:30:10,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 197. [2020-09-24 18:30:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-24 18:30:10,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions. [2020-09-24 18:30:10,158 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69 [2020-09-24 18:30:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:10,159 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 202 transitions. [2020-09-24 18:30:10,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2020-09-24 18:30:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 18:30:10,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:10,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:10,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:30:10,161 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times [2020-09-24 18:30:10,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:10,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595965688] [2020-09-24 18:30:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:30:13,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:30:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3633 [2020-09-24 18:30:13,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 18:30:13,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:13,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:13,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:13,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:13,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:13,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:13,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:13,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:13,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:13,892 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 18:30:13,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595965688] [2020-09-24 18:30:13,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:13,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:13,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838999080] [2020-09-24 18:30:13,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:13,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:13,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:13,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:13,896 INFO L87 Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states. [2020-09-24 18:30:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:14,177 INFO L93 Difference]: Finished difference Result 197 states and 202 transitions. [2020-09-24 18:30:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:14,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 18:30:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:14,180 INFO L225 Difference]: With dead ends: 197 [2020-09-24 18:30:14,180 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 18:30:14,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 18:30:14,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-09-24 18:30:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 18:30:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2020-09-24 18:30:14,195 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69 [2020-09-24 18:30:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:14,195 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2020-09-24 18:30:14,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:14,196 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2020-09-24 18:30:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 18:30:14,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:14,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:14,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:30:14,203 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:14,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:14,204 INFO L82 PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times [2020-09-24 18:30:14,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:14,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762839805] [2020-09-24 18:30:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:14,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 18:30:15,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-09-24 18:30:15,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 18:30:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:15,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:15,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:15,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:15,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:15,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:15,901 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 18:30:15,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762839805] [2020-09-24 18:30:15,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:15,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:15,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945989183] [2020-09-24 18:30:15,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:15,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:15,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:15,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:15,909 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states. [2020-09-24 18:30:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:16,423 INFO L93 Difference]: Finished difference Result 297 states and 303 transitions. [2020-09-24 18:30:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:16,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 18:30:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:16,426 INFO L225 Difference]: With dead ends: 297 [2020-09-24 18:30:16,426 INFO L226 Difference]: Without dead ends: 295 [2020-09-24 18:30:16,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:30:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-24 18:30:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193. [2020-09-24 18:30:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 18:30:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2020-09-24 18:30:16,434 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74 [2020-09-24 18:30:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:16,434 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2020-09-24 18:30:16,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2020-09-24 18:30:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 18:30:16,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:16,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:16,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:30:16,436 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:16,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:16,437 INFO L82 PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times [2020-09-24 18:30:16,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:16,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184784233] [2020-09-24 18:30:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:16,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:18,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-24 18:30:18,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:30:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1697 [2020-09-24 18:30:18,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:30:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 18:30:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 18:30:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:18,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:18,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:18,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:18,191 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 18:30:18,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184784233] [2020-09-24 18:30:18,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:18,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:30:18,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039414675] [2020-09-24 18:30:18,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:30:18,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:18,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:30:18,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:30:18,195 INFO L87 Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 4 states. [2020-09-24 18:30:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:18,533 INFO L93 Difference]: Finished difference Result 292 states and 298 transitions. [2020-09-24 18:30:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:30:18,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-09-24 18:30:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:18,536 INFO L225 Difference]: With dead ends: 292 [2020-09-24 18:30:18,537 INFO L226 Difference]: Without dead ends: 193 [2020-09-24 18:30:18,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:30:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-24 18:30:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2020-09-24 18:30:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-24 18:30:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 196 transitions. [2020-09-24 18:30:18,548 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 196 transitions. Word has length 75 [2020-09-24 18:30:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:18,548 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 196 transitions. [2020-09-24 18:30:18,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:30:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 196 transitions. [2020-09-24 18:30:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 18:30:18,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:18,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:18,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:30:18,551 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:18,552 INFO L82 PathProgramCache]: Analyzing trace with hash 661067438, now seen corresponding path program 1 times [2020-09-24 18:30:18,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:18,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463277868] [2020-09-24 18:30:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:18,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:18,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:19,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:19,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:20,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:20,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 18:30:20,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:30:20,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2414 [2020-09-24 18:30:20,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 18:30:20,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:21,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:21,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:21,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:21,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:21,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:21,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:21,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:21,088 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 18:30:21,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463277868] [2020-09-24 18:30:21,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:21,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:21,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950210567] [2020-09-24 18:30:21,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:21,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:21,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:21,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:21,091 INFO L87 Difference]: Start difference. First operand 193 states and 196 transitions. Second operand 8 states. [2020-09-24 18:30:21,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:21,483 INFO L93 Difference]: Finished difference Result 193 states and 196 transitions. [2020-09-24 18:30:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:21,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-09-24 18:30:21,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:21,485 INFO L225 Difference]: With dead ends: 193 [2020-09-24 18:30:21,485 INFO L226 Difference]: Without dead ends: 191 [2020-09-24 18:30:21,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:21,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-24 18:30:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2020-09-24 18:30:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 18:30:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 194 transitions. [2020-09-24 18:30:21,493 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 194 transitions. Word has length 80 [2020-09-24 18:30:21,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:21,493 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 194 transitions. [2020-09-24 18:30:21,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 194 transitions. [2020-09-24 18:30:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 18:30:21,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:21,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:21,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:30:21,495 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:21,496 INFO L82 PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times [2020-09-24 18:30:21,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:21,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909940080] [2020-09-24 18:30:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:21,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:21,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:26,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:26,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 18:30:26,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:30:26,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4853 [2020-09-24 18:30:26,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 18:30:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:26,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:26,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:26,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:26,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:26,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:26,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:26,426 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 18:30:26,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909940080] [2020-09-24 18:30:26,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:26,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:26,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301856405] [2020-09-24 18:30:26,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:26,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:26,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:26,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:26,428 INFO L87 Difference]: Start difference. First operand 191 states and 194 transitions. Second operand 7 states. [2020-09-24 18:30:26,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:26,799 INFO L93 Difference]: Finished difference Result 191 states and 194 transitions. [2020-09-24 18:30:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:30:26,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-09-24 18:30:26,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:26,802 INFO L225 Difference]: With dead ends: 191 [2020-09-24 18:30:26,802 INFO L226 Difference]: Without dead ends: 189 [2020-09-24 18:30:26,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:30:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-09-24 18:30:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-09-24 18:30:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 18:30:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2020-09-24 18:30:26,813 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 85 [2020-09-24 18:30:26,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:26,814 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2020-09-24 18:30:26,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2020-09-24 18:30:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 18:30:26,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:26,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:26,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:30:26,817 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:26,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:26,817 INFO L82 PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times [2020-09-24 18:30:26,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:26,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515633312] [2020-09-24 18:30:26,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:26,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:26,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:27,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:28,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:30:28,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1996 [2020-09-24 18:30:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:30:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:28,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 18:30:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:28,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:28,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:28,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:28,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:28,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:28,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:30:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 18:30:28,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515633312] [2020-09-24 18:30:28,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:30:28,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 18:30:28,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652723866] [2020-09-24 18:30:28,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:28,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:28,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:28,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:28,939 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 8 states. [2020-09-24 18:30:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:29,513 INFO L93 Difference]: Finished difference Result 279 states and 283 transitions. [2020-09-24 18:30:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:30:29,513 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 18:30:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:29,515 INFO L225 Difference]: With dead ends: 279 [2020-09-24 18:30:29,515 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 18:30:29,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:30:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 18:30:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 182. [2020-09-24 18:30:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-24 18:30:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 185 transitions. [2020-09-24 18:30:29,526 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 185 transitions. Word has length 86 [2020-09-24 18:30:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:29,526 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 185 transitions. [2020-09-24 18:30:29,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 185 transitions. [2020-09-24 18:30:29,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 18:30:29,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:29,527 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:29,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:30:29,528 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:29,529 INFO L82 PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times [2020-09-24 18:30:29,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:29,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749254025] [2020-09-24 18:30:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:29,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:29,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:31,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:30:31,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:30:31,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2032 [2020-09-24 18:30:31,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:30:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:31,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 18:30:31,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:31,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:31,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:31,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:31,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:31,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:31,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:31,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 18:30:31,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749254025] [2020-09-24 18:30:31,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:30:31,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 18:30:31,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519575996] [2020-09-24 18:30:31,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:31,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:31,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:31,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:31,672 INFO L87 Difference]: Start difference. First operand 182 states and 185 transitions. Second operand 8 states. [2020-09-24 18:30:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:32,041 INFO L93 Difference]: Finished difference Result 182 states and 185 transitions. [2020-09-24 18:30:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:32,041 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 18:30:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:32,043 INFO L225 Difference]: With dead ends: 182 [2020-09-24 18:30:32,043 INFO L226 Difference]: Without dead ends: 180 [2020-09-24 18:30:32,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:32,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-09-24 18:30:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2020-09-24 18:30:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-24 18:30:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-09-24 18:30:32,057 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 86 [2020-09-24 18:30:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:32,057 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-09-24 18:30:32,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-09-24 18:30:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 18:30:32,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:32,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:32,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 18:30:32,061 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash -228867626, now seen corresponding path program 1 times [2020-09-24 18:30:32,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:32,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808005873] [2020-09-24 18:30:32,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:32,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:32,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:33,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:30:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:30:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 18:30:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:37,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:37,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:37,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:37,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:37,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:37,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:37,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:37,206 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 18:30:37,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808005873] [2020-09-24 18:30:37,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:37,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:37,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063727835] [2020-09-24 18:30:37,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:37,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:37,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:37,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:37,208 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 8 states. [2020-09-24 18:30:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:37,726 INFO L93 Difference]: Finished difference Result 169 states and 171 transitions. [2020-09-24 18:30:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:37,726 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2020-09-24 18:30:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:37,728 INFO L225 Difference]: With dead ends: 169 [2020-09-24 18:30:37,728 INFO L226 Difference]: Without dead ends: 167 [2020-09-24 18:30:37,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-24 18:30:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-09-24 18:30:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-24 18:30:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2020-09-24 18:30:37,736 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 99 [2020-09-24 18:30:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:37,736 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2020-09-24 18:30:37,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2020-09-24 18:30:37,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 18:30:37,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:37,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:37,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 18:30:37,738 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:37,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:37,738 INFO L82 PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times [2020-09-24 18:30:37,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:37,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842042502] [2020-09-24 18:30:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:37,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:42,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:42,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 18:30:42,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:30:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:30:42,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:30:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:42,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:42,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:42,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:42,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:42,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:42,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:42,825 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 18:30:42,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842042502] [2020-09-24 18:30:42,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:42,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:42,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938422892] [2020-09-24 18:30:42,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:42,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:42,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:42,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:42,827 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand 8 states. [2020-09-24 18:30:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:43,357 INFO L93 Difference]: Finished difference Result 207 states and 210 transitions. [2020-09-24 18:30:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:30:43,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-09-24 18:30:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:43,360 INFO L225 Difference]: With dead ends: 207 [2020-09-24 18:30:43,360 INFO L226 Difference]: Without dead ends: 205 [2020-09-24 18:30:43,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-24 18:30:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2020-09-24 18:30:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-24 18:30:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2020-09-24 18:30:43,367 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 104 [2020-09-24 18:30:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:43,367 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2020-09-24 18:30:43,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2020-09-24 18:30:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 18:30:43,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:43,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:43,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 18:30:43,369 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:43,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1039394916, now seen corresponding path program 1 times [2020-09-24 18:30:43,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:43,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957305914] [2020-09-24 18:30:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:43,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:43,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:45,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:48,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:48,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 18:30:48,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:30:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 18:30:48,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-09-24 18:30:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 18:30:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:48,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:48,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:48,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:48,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:48,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:48,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:48,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:48,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:48,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:48,476 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 18:30:48,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957305914] [2020-09-24 18:30:48,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:48,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:48,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898606057] [2020-09-24 18:30:48,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:48,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:48,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:48,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:48,478 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand 8 states. [2020-09-24 18:30:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:49,402 INFO L93 Difference]: Finished difference Result 219 states and 222 transitions. [2020-09-24 18:30:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:30:49,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-09-24 18:30:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:49,405 INFO L225 Difference]: With dead ends: 219 [2020-09-24 18:30:49,405 INFO L226 Difference]: Without dead ends: 217 [2020-09-24 18:30:49,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:30:49,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-24 18:30:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 172. [2020-09-24 18:30:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-24 18:30:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 174 transitions. [2020-09-24 18:30:49,413 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 174 transitions. Word has length 111 [2020-09-24 18:30:49,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:49,413 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 174 transitions. [2020-09-24 18:30:49,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 174 transitions. [2020-09-24 18:30:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-09-24 18:30:49,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:49,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:49,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 18:30:49,415 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:49,416 INFO L82 PathProgramCache]: Analyzing trace with hash -109554473, now seen corresponding path program 1 times [2020-09-24 18:30:49,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:49,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747868315] [2020-09-24 18:30:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:49,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:49,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:49,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:50,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:54,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:54,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 18:30:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:54,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:54,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:54,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:30:54,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:54,508 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 18:30:54,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747868315] [2020-09-24 18:30:54,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:54,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:30:54,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037792747] [2020-09-24 18:30:54,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:30:54,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:54,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:30:54,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:30:54,510 INFO L87 Difference]: Start difference. First operand 172 states and 174 transitions. Second operand 8 states. [2020-09-24 18:30:55,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:55,042 INFO L93 Difference]: Finished difference Result 215 states and 218 transitions. [2020-09-24 18:30:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:55,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 116 [2020-09-24 18:30:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:55,045 INFO L225 Difference]: With dead ends: 215 [2020-09-24 18:30:55,045 INFO L226 Difference]: Without dead ends: 213 [2020-09-24 18:30:55,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-24 18:30:55,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-09-24 18:30:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 170. [2020-09-24 18:30:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-24 18:30:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 172 transitions. [2020-09-24 18:30:55,061 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 172 transitions. Word has length 116 [2020-09-24 18:30:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:55,061 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 172 transitions. [2020-09-24 18:30:55,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:30:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 172 transitions. [2020-09-24 18:30:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-24 18:30:55,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:55,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:55,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 18:30:55,064 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:55,064 INFO L82 PathProgramCache]: Analyzing trace with hash -533911886, now seen corresponding path program 1 times [2020-09-24 18:30:55,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:55,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111267630] [2020-09-24 18:30:55,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:55,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:55,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:30:55,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-09-24 18:30:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:30:55,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:55,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:30:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:55,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:30:55,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:30:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:30:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:30:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:30:55,315 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 18:30:55,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111267630] [2020-09-24 18:30:55,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:30:55,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:30:55,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950787364] [2020-09-24 18:30:55,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:30:55,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:30:55,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:30:55,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:30:55,317 INFO L87 Difference]: Start difference. First operand 170 states and 172 transitions. Second operand 7 states. [2020-09-24 18:30:55,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:30:55,904 INFO L93 Difference]: Finished difference Result 197 states and 200 transitions. [2020-09-24 18:30:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:30:55,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-09-24 18:30:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:30:55,906 INFO L225 Difference]: With dead ends: 197 [2020-09-24 18:30:55,906 INFO L226 Difference]: Without dead ends: 195 [2020-09-24 18:30:55,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:30:55,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-09-24 18:30:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 168. [2020-09-24 18:30:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-24 18:30:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 170 transitions. [2020-09-24 18:30:55,913 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 170 transitions. Word has length 127 [2020-09-24 18:30:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:30:55,914 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 170 transitions. [2020-09-24 18:30:55,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:30:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 170 transitions. [2020-09-24 18:30:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-24 18:30:55,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:30:55,915 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:30:55,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 18:30:55,916 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:30:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:30:55,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1320919986, now seen corresponding path program 1 times [2020-09-24 18:30:55,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:30:55,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740277184] [2020-09-24 18:30:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:30:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:30:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:56,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:56,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:30:56,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking...