/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:04:50,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:04:50,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:04:50,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:04:50,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:04:50,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:04:50,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:04:50,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:04:50,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:04:50,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:04:50,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:04:50,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:04:50,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:04:50,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:04:50,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:04:50,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:04:50,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:04:50,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:04:50,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:04:50,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:04:50,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:04:50,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:04:50,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:04:50,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:04:50,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:04:50,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:04:50,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:04:50,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:04:50,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:04:50,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:04:50,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:04:50,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:04:50,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:04:50,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:04:50,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:04:50,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:04:50,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:04:50,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:04:50,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:04:50,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:04:50,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:04:50,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:04:51,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:04:51,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:04:51,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:04:51,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:04:51,010 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:04:51,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:04:51,011 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:04:51,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:04:51,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:04:51,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:04:51,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:04:51,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:04:51,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:04:51,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:04:51,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:04:51,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:04:51,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:04:51,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:04:51,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:04:51,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:04:51,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:04:51,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:04:51,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:04:51,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:04:51,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:04:51,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:04:51,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:04:51,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:04:51,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:04:51,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-25 00:04:51,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:04:51,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:04:51,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:04:51,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:04:51,529 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:04:51,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-25 00:04:51,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e901722/0a1be8550fc542ac8f8d5c9ae12bc080/FLAG16dbb7aa8 [2020-09-25 00:04:52,140 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:04:52,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i [2020-09-25 00:04:52,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e901722/0a1be8550fc542ac8f8d5c9ae12bc080/FLAG16dbb7aa8 [2020-09-25 00:04:52,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52e901722/0a1be8550fc542ac8f8d5c9ae12bc080 [2020-09-25 00:04:52,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:04:52,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:04:52,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:52,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:04:52,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:04:52,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535e39d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52, skipping insertion in model container [2020-09-25 00:04:52,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:04:52,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:04:52,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:52,835 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:04:52,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:52,885 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:04:52,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52 WrapperNode [2020-09-25 00:04:52,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:52,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:04:52,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:04:52,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:04:52,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:52,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:53,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:53,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... [2020-09-25 00:04:53,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:04:53,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:04:53,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:04:53,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:04:53,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:04:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:04:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:04:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 00:04:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 00:04:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:04:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:04:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:04:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 00:04:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:04:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:04:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:04:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:04:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:04:53,518 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:04:53,519 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 00:04:53,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:53 BoogieIcfgContainer [2020-09-25 00:04:53,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:04:53,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:04:53,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:04:53,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:04:53,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:52" (1/3) ... [2020-09-25 00:04:53,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d255500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:53, skipping insertion in model container [2020-09-25 00:04:53,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:52" (2/3) ... [2020-09-25 00:04:53,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d255500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:53, skipping insertion in model container [2020-09-25 00:04:53,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:53" (3/3) ... [2020-09-25 00:04:53,535 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2020-09-25 00:04:53,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:04:53,557 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:04:53,577 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:04:53,617 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:04:53,617 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:04:53,617 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:04:53,617 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:04:53,617 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:04:53,618 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:04:53,618 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:04:53,618 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:04:53,645 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-25 00:04:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 00:04:53,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:53,656 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] [2020-09-25 00:04:53,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:53,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:53,664 INFO L82 PathProgramCache]: Analyzing trace with hash 60896664, now seen corresponding path program 1 times [2020-09-25 00:04:53,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:53,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108565453] [2020-09-25 00:04:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:54,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:54,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 00:04:54,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-25 00:04:54,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:04:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 00:04:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:04:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:04:54,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:54,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:54,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:04:54,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:04:54,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:04:54,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108565453] [2020-09-25 00:04:54,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:54,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:04:54,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11085886] [2020-09-25 00:04:54,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:04:54,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:54,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:04:54,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:04:54,342 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 6 states. [2020-09-25 00:04:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:54,739 INFO L93 Difference]: Finished difference Result 178 states and 273 transitions. [2020-09-25 00:04:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:04:54,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-25 00:04:54,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:54,757 INFO L225 Difference]: With dead ends: 178 [2020-09-25 00:04:54,758 INFO L226 Difference]: Without dead ends: 103 [2020-09-25 00:04:54,765 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 [2020-09-25 00:04:54,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-25 00:04:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2020-09-25 00:04:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 00:04:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2020-09-25 00:04:54,840 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 116 transitions. Word has length 30 [2020-09-25 00:04:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:54,840 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 116 transitions. [2020-09-25 00:04:54,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:04:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 116 transitions. [2020-09-25 00:04:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:04:54,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:54,844 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] [2020-09-25 00:04:54,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:04:54,844 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:54,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1464371663, now seen corresponding path program 1 times [2020-09-25 00:04:54,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:54,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917896159] [2020-09-25 00:04:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:55,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 00:04:55,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:55,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 00:04:55,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:04:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 00:04:55,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:04:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:55,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:55,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:04:55,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:55,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:04:55,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:55,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:55,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:55,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:55,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:04:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:55,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:55,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:04:55,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:04:55,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917896159] [2020-09-25 00:04:55,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:55,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 00:04:55,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975229] [2020-09-25 00:04:55,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:04:55,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:55,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:04:55,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:04:55,161 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand 7 states. [2020-09-25 00:04:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:55,422 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2020-09-25 00:04:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:04:55,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 00:04:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:55,428 INFO L225 Difference]: With dead ends: 99 [2020-09-25 00:04:55,428 INFO L226 Difference]: Without dead ends: 97 [2020-09-25 00:04:55,429 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 [2020-09-25 00:04:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-25 00:04:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-25 00:04:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 00:04:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2020-09-25 00:04:55,447 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 35 [2020-09-25 00:04:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:55,448 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2020-09-25 00:04:55,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:04:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2020-09-25 00:04:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 00:04:55,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:55,453 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] [2020-09-25 00:04:55,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:04:55,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:55,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:55,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1188311592, now seen corresponding path program 1 times [2020-09-25 00:04:55,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:55,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668595526] [2020-09-25 00:04:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:55,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:04:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:04:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1999 [2020-09-25 00:04:57,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:04:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 00:04:57,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 00:04:57,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:57,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:04:57,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:04:57,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:57,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:04:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:04:57,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:57,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 00:04:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:04:57,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:57,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 00:04:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:04:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:04:57,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:57,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 00:04:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:04:57,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:57,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 00:04:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:04:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:04:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:04:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:04:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 00:04:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:57,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:57,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:57,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:04:57,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 00:04:57,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:04:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:04:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-09-25 00:04:57,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668595526] [2020-09-25 00:04:57,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:04:57,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:04:57,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086448515] [2020-09-25 00:04:57,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:04:57,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:04:57,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:04:57,747 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand 8 states. [2020-09-25 00:04:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:58,064 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-09-25 00:04:58,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:04:58,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-25 00:04:58,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:58,067 INFO L225 Difference]: With dead ends: 104 [2020-09-25 00:04:58,067 INFO L226 Difference]: Without dead ends: 102 [2020-09-25 00:04:58,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:04:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-25 00:04:58,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2020-09-25 00:04:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 00:04:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2020-09-25 00:04:58,084 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 65 [2020-09-25 00:04:58,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:58,085 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2020-09-25 00:04:58,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:04:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2020-09-25 00:04:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 00:04:58,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:58,090 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] [2020-09-25 00:04:58,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:04:58,090 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:58,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:58,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1072542460, now seen corresponding path program 1 times [2020-09-25 00:04:58,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:58,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604226400] [2020-09-25 00:04:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:58,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:58,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:58,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:59,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 00:05:03,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:05:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 00:05:03,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-25 00:05:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:05:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:05:03,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:05:03,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:05:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 00:05:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 00:05:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 00:05:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 00:05:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:05:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 00:05:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:05:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 00:05:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-25 00:05:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 00:05:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:05:03,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 00:05:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-25 00:05:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-25 00:05:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:05:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-09-25 00:05:03,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604226400] [2020-09-25 00:05:03,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:03,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:05:03,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651099730] [2020-09-25 00:05:03,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:05:03,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:03,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:05:03,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:05:03,316 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand 3 states. [2020-09-25 00:05:03,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:03,354 INFO L93 Difference]: Finished difference Result 144 states and 177 transitions. [2020-09-25 00:05:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:05:03,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-09-25 00:05:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:03,356 INFO L225 Difference]: With dead ends: 144 [2020-09-25 00:05:03,357 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 00:05:03,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:05:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 00:05:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-09-25 00:05:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-25 00:05:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2020-09-25 00:05:03,371 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 111 [2020-09-25 00:05:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:03,371 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2020-09-25 00:05:03,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:05:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2020-09-25 00:05:03,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 00:05:03,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:03,374 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] [2020-09-25 00:05:03,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:05:03,375 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:03,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1342891699, now seen corresponding path program 1 times [2020-09-25 00:05:03,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:03,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604236581] [2020-09-25 00:05:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-25 00:05:03,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 00:05:03,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:05:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-09-25 00:05:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:05:03,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:05:03,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:05:03,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:05:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 00:05:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:03,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 00:05:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 00:05:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 00:05:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 00:05:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:05:03,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:03,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 00:05:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 00:05:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:05:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:05:03,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 00:05:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:03,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 00:05:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:05:03,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:05:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:03,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:03,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:03,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:03,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:05:03,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:03,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-09-25 00:05:03,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604236581] [2020-09-25 00:05:03,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:03,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:05:03,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085606332] [2020-09-25 00:05:03,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:05:03,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:03,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:05:03,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:05:03,857 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand 6 states. [2020-09-25 00:05:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:03,981 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2020-09-25 00:05:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:05:03,982 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2020-09-25 00:05:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:03,984 INFO L225 Difference]: With dead ends: 110 [2020-09-25 00:05:03,984 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 00:05:03,985 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 [2020-09-25 00:05:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 00:05:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2020-09-25 00:05:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 00:05:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2020-09-25 00:05:04,004 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 114 [2020-09-25 00:05:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:04,004 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2020-09-25 00:05:04,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:05:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2020-09-25 00:05:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 00:05:04,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:05:04,015 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] [2020-09-25 00:05:04,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:05:04,015 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:05:04,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:05:04,016 INFO L82 PathProgramCache]: Analyzing trace with hash -279016842, now seen corresponding path program 1 times [2020-09-25 00:05:04,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:05:04,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689426337] [2020-09-25 00:05:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:05:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 00:05:04,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 00:05:04,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:05:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-25 00:05:04,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:05:04,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:05:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:05:04,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:04,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:05:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:05:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:04,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-25 00:05:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-25 00:05:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:05:04,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 00:05:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:04,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-25 00:05:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:05:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-25 00:05:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:05:04,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 00:05:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:05:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 00:05:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:05:04,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:05:04,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:05:04,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:05:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:05:04,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:04,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:04,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 00:05:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:05:04,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-25 00:05:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:05:04,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:04,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:05:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:05:04,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:04,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 00:05:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:05:04,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:05:04,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:05:04,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:05:04,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:05:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:05:04,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:05:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:05:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:05:04,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:05:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:05:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-25 00:05:04,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689426337] [2020-09-25 00:05:04,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:05:04,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:05:04,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680344930] [2020-09-25 00:05:04,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:05:04,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:05:04,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:05:04,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:05:04,499 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 6 states. [2020-09-25 00:05:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:05:04,591 INFO L93 Difference]: Finished difference Result 117 states and 138 transitions. [2020-09-25 00:05:04,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:05:04,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2020-09-25 00:05:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:05:04,592 INFO L225 Difference]: With dead ends: 117 [2020-09-25 00:05:04,593 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:05:04,596 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 [2020-09-25 00:05:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:05:04,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:05:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:05:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:05:04,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2020-09-25 00:05:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:05:04,597 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:05:04,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:05:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:05:04,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:05:04,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:05:04,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:05:05,128 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 00:05:05,128 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:05:05,128 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:05:05,128 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:05:05,128 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:05:05,128 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:05:05,129 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:05:05,129 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:05:05,129 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 00:05:05,129 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 00:05:05,129 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:05:05,129 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)) [2020-09-25 00:05:05,130 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)) [2020-09-25 00:05:05,130 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 72) no Hoare annotation was computed. [2020-09-25 00:05:05,130 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)) [2020-09-25 00:05:05,130 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 00:05:05,131 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)) [2020-09-25 00:05:05,131 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 00:05:05,131 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 00:05:05,131 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)) [2020-09-25 00:05:05,131 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)) [2020-09-25 00:05:05,131 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)) [2020-09-25 00:05:05,132 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 00:05:05,132 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 00:05:05,132 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-25 00:05:05,132 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)) [2020-09-25 00:05:05,132 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)) [2020-09-25 00:05:05,133 INFO L271 CegarLoopResult]: At program point L70(lines 14 72) the Hoare annotation is: true [2020-09-25 00:05:05,133 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 00:05:05,133 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-25 00:05:05,133 INFO L268 CegarLoopResult]: For program point L37-2(line 37) no Hoare annotation was computed. [2020-09-25 00:05:05,133 INFO L268 CegarLoopResult]: For program point L37-4(line 37) no Hoare annotation was computed. [2020-09-25 00:05:05,133 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)) [2020-09-25 00:05:05,134 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 00:05:05,134 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)) [2020-09-25 00:05:05,134 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 00:05:05,134 INFO L268 CegarLoopResult]: For program point L46(lines 33 69) no Hoare annotation was computed. [2020-09-25 00:05:05,134 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 72) no Hoare annotation was computed. [2020-09-25 00:05:05,135 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)) [2020-09-25 00:05:05,135 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)) [2020-09-25 00:05:05,135 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 00:05:05,135 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 72) the Hoare annotation is: true [2020-09-25 00:05:05,135 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:05:05,135 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 00:05:05,136 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-25 00:05:05,136 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)) [2020-09-25 00:05:05,136 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)) [2020-09-25 00:05:05,136 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)) [2020-09-25 00:05:05,136 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 00:05:05,137 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)) [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L48-2(line 48) no Hoare annotation was computed. [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-25 00:05:05,137 INFO L268 CegarLoopResult]: For program point L40-1(line 40) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 00:05:05,138 INFO L268 CegarLoopResult]: For program point L24-1(lines 14 72) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L33(lines 33 69) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L33-3(line 33) no Hoare annotation was computed. [2020-09-25 00:05:05,139 INFO L268 CegarLoopResult]: For program point L58(lines 58 64) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L25(lines 14 72) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L58-1(line 58) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L58-2(line 58) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L58-3(lines 58 64) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 00:05:05,140 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 00:05:05,141 INFO L268 CegarLoopResult]: For program point L50-1(lines 50 68) no Hoare annotation was computed. [2020-09-25 00:05:05,141 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 00:05:05,141 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-25 00:05:05,141 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 00:05:05,141 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)) [2020-09-25 00:05:05,141 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)) [2020-09-25 00:05:05,142 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)) [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L26(lines 14 72) no Hoare annotation was computed. [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 00:05:05,142 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point L43(lines 33 69) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 00:05:05,143 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 00:05:05,144 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 00:05:05,144 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 00:05:05,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:05:05 BoogieIcfgContainer [2020-09-25 00:05:05,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:05:05,171 INFO L168 Benchmark]: Toolchain (without parser) took 12676.85 ms. Allocated memory was 141.6 MB in the beginning and 323.0 MB in the end (delta: 181.4 MB). Free memory was 105.0 MB in the beginning and 241.5 MB in the end (delta: -136.6 MB). Peak memory consumption was 164.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,172 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.90 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 94.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,173 INFO L168 Benchmark]: Boogie Preprocessor took 120.02 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 93.9 MB in the beginning and 181.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,174 INFO L168 Benchmark]: RCFGBuilder took 518.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.6 MB in the beginning and 160.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,175 INFO L168 Benchmark]: TraceAbstraction took 11641.00 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 159.4 MB in the beginning and 241.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 157.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:05:05,179 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 388.90 ms. Allocated memory is still 141.6 MB. Free memory was 104.3 MB in the beginning and 94.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.02 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 93.9 MB in the beginning and 181.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 518.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.6 MB in the beginning and 160.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11641.00 ms. Allocated memory was 203.4 MB in the beginning and 323.0 MB in the end (delta: 119.5 MB). Free memory was 159.4 MB in the beginning and 241.5 MB in the end (delta: -82.1 MB). Peak memory consumption was 157.6 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: 10.9s, OverallIterations: 6, TraceHistogramMax: 14, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 577 SDtfs, 286 SDslu, 1542 SDs, 0 SdLazy, 535 SolverSat, 172 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 76 PreInvPairs, 105 NumberOfFragments, 423 HoareAnnotationTreeSize, 76 FomulaSimplifications, 395 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 26 FomulaSimplificationsInter, 126 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 468 ConstructedInterpolants, 0 QuantifiedInterpolants, 58530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 984/988 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...