/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=1000 --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 -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:34:23,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:34:23,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:34:23,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:34:23,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:34:23,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:34:23,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:34:23,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:34:23,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:34:23,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:34:23,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:34:23,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:34:23,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:34:23,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:34:23,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:34:23,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:34:23,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:34:23,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:34:23,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:34:23,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:34:23,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:34:23,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:34:23,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:34:23,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:34:23,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:34:23,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:34:23,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:34:23,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:34:23,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:34:23,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:34:23,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:34:23,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:34:23,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:34:23,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:34:23,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:34:23,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:34:23,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:34:23,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:34:23,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:34:23,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:34:23,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:34:23,515 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 19:34:23,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:34:23,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:34:23,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:34:23,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:34:23,567 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:34:23,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:34:23,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:34:23,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:34:23,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:34:23,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:34:23,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:34:23,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:34:23,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:34:23,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:34:23,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:34:23,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:34:23,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:34:23,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:34:23,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:34:23,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:34:23,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:34:23,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:34:23,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:34:23,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:34:23,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:34:23,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:34:23,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:34:23,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:34:23,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:34:23,573 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=1000;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=1000;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=1000;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=1000;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:34:24,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:34:24,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:34:24,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:34:24,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:34:24,124 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:34:24,125 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-24 19:34:24,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6c771034/5ed27c3ed01048e6baea756ce96fdb7e/FLAG86b1f5787 [2020-09-24 19:34:24,724 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:34:24,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-24 19:34:24,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6c771034/5ed27c3ed01048e6baea756ce96fdb7e/FLAG86b1f5787 [2020-09-24 19:34:25,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f6c771034/5ed27c3ed01048e6baea756ce96fdb7e [2020-09-24 19:34:25,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:34:25,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:34:25,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:34:25,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:34:25,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:34:25,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c54ab82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25, skipping insertion in model container [2020-09-24 19:34:25,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:34:25,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:34:25,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:34:25,420 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:34:25,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:34:25,478 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:34:25,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25 WrapperNode [2020-09-24 19:34:25,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:34:25,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:34:25,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:34:25,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:34:25,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (1/1) ... [2020-09-24 19:34:25,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:34:25,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:34:25,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:34:25,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:34:25,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (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 19:34:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:34:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:34:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:34:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:34:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:34:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:34:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:34:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:34:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:34:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:34:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:34:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:34:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:34:26,128 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:34:26,128 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 19:34:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:34:26 BoogieIcfgContainer [2020-09-24 19:34:26,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:34:26,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:34:26,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:34:26,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:34:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:34:25" (1/3) ... [2020-09-24 19:34:26,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cc3a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:34:26, skipping insertion in model container [2020-09-24 19:34:26,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:25" (2/3) ... [2020-09-24 19:34:26,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cc3a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:34:26, skipping insertion in model container [2020-09-24 19:34:26,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:34:26" (3/3) ... [2020-09-24 19:34:26,144 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2020-09-24 19:34:26,154 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:34:26,165 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:34:26,187 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:34:26,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:34:26,221 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:34:26,221 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:34:26,222 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:34:26,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:34:26,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:34:26,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:34:26,222 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:34:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-24 19:34:26,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 19:34:26,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:26,258 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] [2020-09-24 19:34:26,258 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash 60896664, now seen corresponding path program 1 times [2020-09-24 19:34:26,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:26,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753259497] [2020-09-24 19:34:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:26,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:26,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 19:34:26,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:26,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-24 19:34:26,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:34:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 19:34:26,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:34:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:34:26,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:26,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:26,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:26,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:26,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:34:26,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:26,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:26,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:26,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:26,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:26,845 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 19:34:26,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753259497] [2020-09-24 19:34:26,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:26,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:34:26,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758006331] [2020-09-24 19:34:26,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:34:26,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:26,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:34:26,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:34:26,879 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2020-09-24 19:34:27,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:27,243 INFO L93 Difference]: Finished difference Result 178 states and 273 transitions. [2020-09-24 19:34:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:34:27,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 19:34:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:27,260 INFO L225 Difference]: With dead ends: 178 [2020-09-24 19:34:27,260 INFO L226 Difference]: Without dead ends: 103 [2020-09-24 19:34:27,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:34:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-24 19:34:27,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2020-09-24 19:34:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 19:34:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2020-09-24 19:34:27,341 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 30 [2020-09-24 19:34:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:27,342 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2020-09-24 19:34:27,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:34:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2020-09-24 19:34:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 19:34:27,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:27,345 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:34:27,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:34:27,345 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:27,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1464371663, now seen corresponding path program 1 times [2020-09-24 19:34:27,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:27,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416164423] [2020-09-24 19:34:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:27,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:27,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 19:34:27,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 19:34:27,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:34:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 19:34:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:34:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:27,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:27,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:27,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:27,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:27,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:27,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:27,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:34:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:27,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:27,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:27,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:27,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:34:27,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:34:27,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416164423] [2020-09-24 19:34:27,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:27,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:34:27,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162835896] [2020-09-24 19:34:27,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:34:27,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:27,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:34:27,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:34:27,728 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand 7 states. [2020-09-24 19:34:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:27,977 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2020-09-24 19:34:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:34:27,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 19:34:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:27,982 INFO L225 Difference]: With dead ends: 99 [2020-09-24 19:34:27,983 INFO L226 Difference]: Without dead ends: 97 [2020-09-24 19:34:27,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:34:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-24 19:34:27,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-24 19:34:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-24 19:34:28,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2020-09-24 19:34:28,002 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 35 [2020-09-24 19:34:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:28,003 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2020-09-24 19:34:28,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:34:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2020-09-24 19:34:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 19:34:28,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:28,006 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:28,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:34:28,006 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:28,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:28,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1188311592, now seen corresponding path program 1 times [2020-09-24 19:34:28,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:28,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38647392] [2020-09-24 19:34:28,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:28,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:28,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:28,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:34:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:34:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:34:29,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 19:34:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:34:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:29,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:29,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:34:29,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:29,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:34:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:29,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:29,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:29,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-24 19:34:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:34:29,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:29,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-24 19:34:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:29,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:29,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:29,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 19:34:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:29,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-24 19:34:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:34:29,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:29,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 19:34:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:29,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:29,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:29,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:34:29,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:29,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-24 19:34:29,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38647392] [2020-09-24 19:34:29,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:29,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:34:29,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85900451] [2020-09-24 19:34:29,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:34:29,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:29,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:34:29,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:34:29,147 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand 3 states. [2020-09-24 19:34:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:29,196 INFO L93 Difference]: Finished difference Result 140 states and 173 transitions. [2020-09-24 19:34:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:34:29,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-09-24 19:34:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:29,198 INFO L225 Difference]: With dead ends: 140 [2020-09-24 19:34:29,199 INFO L226 Difference]: Without dead ends: 97 [2020-09-24 19:34:29,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:34:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-24 19:34:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-24 19:34:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-24 19:34:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2020-09-24 19:34:29,215 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 65 [2020-09-24 19:34:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:29,216 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2020-09-24 19:34:29,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:34:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2020-09-24 19:34:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-24 19:34:29,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:29,219 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:29,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:34:29,219 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2082475577, now seen corresponding path program 1 times [2020-09-24 19:34:29,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:29,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364659831] [2020-09-24 19:34:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:29,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 19:34:30,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:34:30,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:34:30,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:34:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 19:34:30,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:34:30,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:34:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:34:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:30,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-24 19:34:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:30,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-24 19:34:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:34:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:34:30,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:30,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 19:34:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:30,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-24 19:34:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:34:30,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:30,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:30,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:34:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:30,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:30,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:30,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:30,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:30,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-24 19:34:30,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364659831] [2020-09-24 19:34:30,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:30,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:34:30,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576055404] [2020-09-24 19:34:30,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:34:30,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:30,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:34:30,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:34:30,442 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand 7 states. [2020-09-24 19:34:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:30,679 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2020-09-24 19:34:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:34:30,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-09-24 19:34:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:30,682 INFO L225 Difference]: With dead ends: 103 [2020-09-24 19:34:30,682 INFO L226 Difference]: Without dead ends: 101 [2020-09-24 19:34:30,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:34:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-24 19:34:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-09-24 19:34:30,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-24 19:34:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2020-09-24 19:34:30,699 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 68 [2020-09-24 19:34:30,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:30,700 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2020-09-24 19:34:30,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:34:30,700 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2020-09-24 19:34:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 19:34:30,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:30,704 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:30,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:34:30,704 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:30,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1342891699, now seen corresponding path program 1 times [2020-09-24 19:34:30,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:30,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122589440] [2020-09-24 19:34:30,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:30,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-24 19:34:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 19:34:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:34:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-09-24 19:34:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 19:34:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:31,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:34:31,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:34:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-24 19:34:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-24 19:34:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 19:34:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-24 19:34:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:34:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:34:31,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 19:34:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:34:31,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-24 19:34:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:34:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:34:31,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-24 19:34:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-24 19:34:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:34:31,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:34:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:31,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-09-24 19:34:31,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122589440] [2020-09-24 19:34:31,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:31,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:34:31,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694002588] [2020-09-24 19:34:31,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:34:31,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:31,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:34:31,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:34:31,186 INFO L87 Difference]: Start difference. First operand 101 states and 120 transitions. Second operand 6 states. [2020-09-24 19:34:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:31,287 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2020-09-24 19:34:31,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:34:31,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-09-24 19:34:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:31,290 INFO L225 Difference]: With dead ends: 112 [2020-09-24 19:34:31,290 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 19:34:31,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:34:31,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 19:34:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2020-09-24 19:34:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 19:34:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-09-24 19:34:31,304 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 114 [2020-09-24 19:34:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:31,305 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-09-24 19:34:31,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:34:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-09-24 19:34:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-24 19:34:31,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:31,308 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:31,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:34:31,309 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash -279016842, now seen corresponding path program 1 times [2020-09-24 19:34:31,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:31,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444042366] [2020-09-24 19:34:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-24 19:34:31,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-24 19:34:31,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:34:31,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-24 19:34:31,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 19:34:31,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:34:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:34:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:34:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-24 19:34:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-24 19:34:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:34:31,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 19:34:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-24 19:34:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:34:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 19:34:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:34:31,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 19:34:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:31,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-24 19:34:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:34:31,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:31,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:31,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:34:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:34:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-24 19:34:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:34:31,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-24 19:34:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:34:31,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:34:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:34:31,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-24 19:34:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:31,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:31,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:31,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:34:31,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:31,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:34:31,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:34:31,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:34:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:31,896 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-24 19:34:31,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444042366] [2020-09-24 19:34:31,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:31,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:34:31,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387538679] [2020-09-24 19:34:31,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:34:31,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:31,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:34:31,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:34:31,899 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 6 states. [2020-09-24 19:34:32,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:32,020 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-09-24 19:34:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:34:32,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-09-24 19:34:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:32,022 INFO L225 Difference]: With dead ends: 117 [2020-09-24 19:34:32,022 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:34:32,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:34:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:34:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:34:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:34:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:34:32,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2020-09-24 19:34:32,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:32,027 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:34:32,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:34:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:34:32,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:34:32,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:34:32,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:34:32,659 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 19:34:32,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:32,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:32,659 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:34:32,659 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:34:32,660 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:34:32,660 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:32,660 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:32,660 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 19:34:32,661 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 19:34:32,662 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:32,662 INFO L264 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,662 INFO L264 CegarLoopResult]: At program point L60-1(line 60) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,662 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 72) no Hoare annotation was computed. [2020-09-24 19:34:32,663 INFO L264 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,663 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 19:34:32,664 INFO L264 CegarLoopResult]: At program point L52-1(line 52) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,664 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-24 19:34:32,664 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-24 19:34:32,664 INFO L264 CegarLoopResult]: At program point L36-1(lines 35 41) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,665 INFO L264 CegarLoopResult]: At program point L36-2(lines 36 41) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,665 INFO L264 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,665 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 19:34:32,667 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 19:34:32,667 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-24 19:34:32,668 INFO L264 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,668 INFO L264 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,668 INFO L271 CegarLoopResult]: At program point L70(lines 14 72) the Hoare annotation is: true [2020-09-24 19:34:32,669 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-24 19:34:32,669 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-24 19:34:32,669 INFO L268 CegarLoopResult]: For program point L37-2(line 37) no Hoare annotation was computed. [2020-09-24 19:34:32,669 INFO L268 CegarLoopResult]: For program point L37-4(line 37) no Hoare annotation was computed. [2020-09-24 19:34:32,669 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (and (<= 1 main_~c~0) (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,670 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 19:34:32,670 INFO L264 CegarLoopResult]: At program point L54-1(lines 53 66) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,670 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 19:34:32,670 INFO L268 CegarLoopResult]: For program point L46(lines 33 69) no Hoare annotation was computed. [2020-09-24 19:34:32,670 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 72) no Hoare annotation was computed. [2020-09-24 19:34:32,670 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,671 INFO L264 CegarLoopResult]: At program point L38-1(line 38) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,671 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 19:34:32,671 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 72) the Hoare annotation is: true [2020-09-24 19:34:32,671 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 19:34:32,671 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 19:34:32,671 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 19:34:32,672 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,672 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,672 INFO L264 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,672 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 19:34:32,673 INFO L264 CegarLoopResult]: At program point L56-1(line 56) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~c~0 2) main_~tokenlen~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (<= 0 main_~c~0) (not (= (+ main_~cp~0 1) main_~urilen~0)) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,674 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-24 19:34:32,674 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-24 19:34:32,674 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L48-2(line 48) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-24 19:34:32,675 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 19:34:32,676 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 19:34:32,676 INFO L268 CegarLoopResult]: For program point L24-1(lines 14 72) no Hoare annotation was computed. [2020-09-24 19:34:32,676 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-24 19:34:32,677 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 19:34:32,677 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 19:34:32,677 INFO L268 CegarLoopResult]: For program point L33(lines 33 69) no Hoare annotation was computed. [2020-09-24 19:34:32,678 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-24 19:34:32,678 INFO L268 CegarLoopResult]: For program point L33-3(line 33) no Hoare annotation was computed. [2020-09-24 19:34:32,678 INFO L268 CegarLoopResult]: For program point L58(lines 58 64) no Hoare annotation was computed. [2020-09-24 19:34:32,678 INFO L268 CegarLoopResult]: For program point L25(lines 14 72) no Hoare annotation was computed. [2020-09-24 19:34:32,678 INFO L268 CegarLoopResult]: For program point L58-1(line 58) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L58-2(line 58) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L58-3(lines 58 64) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L50-1(lines 50 68) no Hoare annotation was computed. [2020-09-24 19:34:32,681 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 19:34:32,682 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-24 19:34:32,682 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-24 19:34:32,682 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,682 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,683 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (and (< 0 main_~scheme~0) (<= 1 main_~cp~0) (<= (+ main_~scheme~0 1) main_~urilen~0) (< main_~cp~0 main_~urilen~0)) [2020-09-24 19:34:32,683 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-24 19:34:32,683 INFO L268 CegarLoopResult]: For program point L26(lines 14 72) no Hoare annotation was computed. [2020-09-24 19:34:32,683 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-24 19:34:32,683 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-24 19:34:32,683 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 19:34:32,684 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 19:34:32,684 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 19:34:32,684 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 19:34:32,684 INFO L268 CegarLoopResult]: For program point L43(lines 33 69) no Hoare annotation was computed. [2020-09-24 19:34:32,684 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 19:34:32,686 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 19:34:32,686 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 19:34:32,686 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 19:34:32,686 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 19:34:32,686 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 19:34:32,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:34:32 BoogieIcfgContainer [2020-09-24 19:34:32,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:34:32,729 INFO L168 Benchmark]: Toolchain (without parser) took 7641.12 ms. Allocated memory was 110.1 MB in the beginning and 261.1 MB in the end (delta: 151.0 MB). Free memory was 75.5 MB in the beginning and 230.1 MB in the end (delta: -154.6 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,730 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 110.1 MB. Free memory was 92.8 MB in the beginning and 92.7 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.12 ms. Allocated memory was 110.1 MB in the beginning and 123.2 MB in the end (delta: 13.1 MB). Free memory was 74.9 MB in the beginning and 99.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,740 INFO L168 Benchmark]: Boogie Preprocessor took 114.78 ms. Allocated memory was 123.2 MB in the beginning and 163.6 MB in the end (delta: 40.4 MB). Free memory was 99.6 MB in the beginning and 149.4 MB in the end (delta: -49.9 MB). Peak memory consumption was 741.1 kB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,740 INFO L168 Benchmark]: RCFGBuilder took 539.18 ms. Allocated memory is still 163.6 MB. Free memory was 149.0 MB in the beginning and 128.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,742 INFO L168 Benchmark]: TraceAbstraction took 6585.89 ms. Allocated memory was 163.6 MB in the beginning and 261.1 MB in the end (delta: 97.5 MB). Free memory was 127.5 MB in the beginning and 230.1 MB in the end (delta: -102.6 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:32,755 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 110.1 MB. Free memory was 92.8 MB in the beginning and 92.7 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 392.12 ms. Allocated memory was 110.1 MB in the beginning and 123.2 MB in the end (delta: 13.1 MB). Free memory was 74.9 MB in the beginning and 99.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.78 ms. Allocated memory was 123.2 MB in the beginning and 163.6 MB in the end (delta: 40.4 MB). Free memory was 99.6 MB in the beginning and 149.4 MB in the end (delta: -49.9 MB). Peak memory consumption was 741.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 539.18 ms. Allocated memory is still 163.6 MB. Free memory was 149.0 MB in the beginning and 128.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6585.89 ms. Allocated memory was 163.6 MB in the beginning and 261.1 MB in the end (delta: 97.5 MB). Free memory was 127.5 MB in the beginning and 230.1 MB in the end (delta: -102.6 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((0 < scheme && 1 <= cp) && scheme + 1 <= urilen) && cp < urilen - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (((0 < scheme && 1 <= cp) && scheme + 1 <= urilen) && 0 <= c) && cp < urilen - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 586 SDtfs, 261 SDslu, 1636 SDs, 0 SdLazy, 449 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 76 PreInvPairs, 105 NumberOfFragments, 423 HoareAnnotationTreeSize, 76 FomulaSimplifications, 238 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 26 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 425 ConstructedInterpolants, 0 QuantifiedInterpolants, 50246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 772/772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...