/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:57:30,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:57:30,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:57:30,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:57:30,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:57:30,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:57:30,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:57:30,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:57:30,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:57:30,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:57:30,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:57:30,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:57:30,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:57:30,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:57:30,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:57:30,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:57:30,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:57:30,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:57:30,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:57:30,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:57:30,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:57:30,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:57:30,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:57:30,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:57:30,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:57:30,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:57:30,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:57:30,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:57:30,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:57:30,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:57:30,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:57:30,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:57:30,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:57:30,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:57:30,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:57:30,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:57:30,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:57:30,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:57:30,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:57:30,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:57:30,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:57:30,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:57:31,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:57:31,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:57:31,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:57:31,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:57:31,034 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:57:31,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:57:31,035 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:57:31,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:57:31,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:57:31,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:57:31,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:57:31,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:57:31,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:57:31,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:57:31,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:57:31,038 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:57:31,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:57:31,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:57:31,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:57:31,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:57:31,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:57:31,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:57:31,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:57:31,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:57:31,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:57:31,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:57:31,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:57:31,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:57:31,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:57:31,041 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:57:31,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:57:31,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:57:31,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:57:31,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:57:31,518 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:57:31,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt5.c [2020-09-24 22:57:31,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10eaf14/c98c54c46801403092e4fb7b3d4657a6/FLAGc8d1553e0 [2020-09-24 22:57:32,198 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:57:32,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt5.c [2020-09-24 22:57:32,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10eaf14/c98c54c46801403092e4fb7b3d4657a6/FLAGc8d1553e0 [2020-09-24 22:57:32,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec10eaf14/c98c54c46801403092e4fb7b3d4657a6 [2020-09-24 22:57:32,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:57:32,588 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:57:32,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:57:32,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:57:32,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:57:32,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:32,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb5adc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32, skipping insertion in model container [2020-09-24 22:57:32,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:32,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:57:32,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:57:32,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:57:32,869 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:57:32,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:57:32,910 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:57:32,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32 WrapperNode [2020-09-24 22:57:32,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:57:32,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:57:32,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:57:32,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:57:32,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:32,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... [2020-09-24 22:57:33,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:57:33,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:57:33,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:57:33,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:57:33,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:57:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:57:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:57:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:57:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 22:57:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:57:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:57:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 22:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:57:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:57:33,404 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:57:33,405 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 22:57:33,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:33 BoogieIcfgContainer [2020-09-24 22:57:33,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:57:33,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:57:33,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:57:33,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:57:33,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:57:32" (1/3) ... [2020-09-24 22:57:33,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a007a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:33, skipping insertion in model container [2020-09-24 22:57:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:32" (2/3) ... [2020-09-24 22:57:33,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a007a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:33, skipping insertion in model container [2020-09-24 22:57:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:33" (3/3) ... [2020-09-24 22:57:33,424 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt5.c [2020-09-24 22:57:33,440 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:57:33,453 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:57:33,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:57:33,532 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:57:33,532 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:57:33,532 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:57:33,532 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:57:33,532 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:57:33,532 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:57:33,533 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:57:33,533 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:57:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-24 22:57:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 22:57:33,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:33,567 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] [2020-09-24 22:57:33,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:33,575 INFO L82 PathProgramCache]: Analyzing trace with hash -687260303, now seen corresponding path program 1 times [2020-09-24 22:57:33,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:33,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108620850] [2020-09-24 22:57:33,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:33,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:33,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:34,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:34,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:57:34,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:57:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-24 22:57:34,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 22:57:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:57:34,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:34,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:34,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:34,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:34,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:57:34,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:34,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:34,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108620850] [2020-09-24 22:57:34,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:34,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:57:34,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980952231] [2020-09-24 22:57:34,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:57:34,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:34,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:57:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:57:34,349 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-09-24 22:57:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:34,456 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-09-24 22:57:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:57:34,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-09-24 22:57:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:34,480 INFO L225 Difference]: With dead ends: 52 [2020-09-24 22:57:34,481 INFO L226 Difference]: Without dead ends: 32 [2020-09-24 22:57:34,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:57:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-24 22:57:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-24 22:57:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-24 22:57:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-09-24 22:57:34,555 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 21 [2020-09-24 22:57:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:34,556 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-09-24 22:57:34,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:57:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-09-24 22:57:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 22:57:34,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:34,558 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] [2020-09-24 22:57:34,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:57:34,560 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:34,561 INFO L82 PathProgramCache]: Analyzing trace with hash -715889454, now seen corresponding path program 1 times [2020-09-24 22:57:34,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:34,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187533550] [2020-09-24 22:57:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:34,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:34,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 22:57:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 22:57:34,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 22:57:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 22:57:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:57:34,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:35,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:35,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:35,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:35,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:35,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:35,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:35,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:35,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:35,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187533550] [2020-09-24 22:57:35,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:35,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:57:35,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588813214] [2020-09-24 22:57:35,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:57:35,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:35,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:57:35,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:57:35,220 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2020-09-24 22:57:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:35,808 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions. [2020-09-24 22:57:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:57:35,809 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-24 22:57:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:35,813 INFO L225 Difference]: With dead ends: 91 [2020-09-24 22:57:35,813 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 22:57:35,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 22:57:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 22:57:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 34. [2020-09-24 22:57:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 22:57:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-09-24 22:57:35,825 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21 [2020-09-24 22:57:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:35,826 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-09-24 22:57:35,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:57:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-09-24 22:57:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 22:57:35,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:35,828 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] [2020-09-24 22:57:35,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:57:35,828 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:35,829 INFO L82 PathProgramCache]: Analyzing trace with hash -805340680, now seen corresponding path program 1 times [2020-09-24 22:57:35,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:35,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349646396] [2020-09-24 22:57:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:35,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:36,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:36,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 22:57:36,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-24 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 22:57:36,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 22:57:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:36,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:36,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:36,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:36,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:36,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:36,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349646396] [2020-09-24 22:57:36,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:57:36,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 22:57:36,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626426185] [2020-09-24 22:57:36,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:57:36,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:36,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:57:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:57:36,667 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 13 states. [2020-09-24 22:57:39,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:39,518 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2020-09-24 22:57:39,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:57:39,519 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-09-24 22:57:39,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:39,521 INFO L225 Difference]: With dead ends: 87 [2020-09-24 22:57:39,521 INFO L226 Difference]: Without dead ends: 82 [2020-09-24 22:57:39,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:57:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-24 22:57:39,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 37. [2020-09-24 22:57:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-24 22:57:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-09-24 22:57:39,538 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-09-24 22:57:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:39,539 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-09-24 22:57:39,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:57:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-09-24 22:57:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 22:57:39,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:39,557 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:39,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:57:39,557 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:39,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1490056162, now seen corresponding path program 2 times [2020-09-24 22:57:39,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:39,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933287352] [2020-09-24 22:57:39,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:39,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:39,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:40,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 22:57:40,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:57:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 790 [2020-09-24 22:57:40,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:57:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 22:57:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:57:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:40,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:40,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:40,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:40,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:40,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:40,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:40,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:40,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933287352] [2020-09-24 22:57:40,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:57:40,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:57:40,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521357677] [2020-09-24 22:57:40,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:57:40,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:57:40,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:57:40,697 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2020-09-24 22:57:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:43,042 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2020-09-24 22:57:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:57:43,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-09-24 22:57:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:43,050 INFO L225 Difference]: With dead ends: 57 [2020-09-24 22:57:43,050 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 22:57:43,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:57:43,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 22:57:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-09-24 22:57:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 22:57:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-09-24 22:57:43,064 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 29 [2020-09-24 22:57:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:43,064 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-09-24 22:57:43,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:57:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2020-09-24 22:57:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 22:57:43,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:43,066 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:43,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:57:43,067 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:43,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:43,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1369450661, now seen corresponding path program 1 times [2020-09-24 22:57:43,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:43,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901918643] [2020-09-24 22:57:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:43,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:43,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-24 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:57:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:57:43,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:57:43,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:43,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:43,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:43,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:43,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:43,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:43,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:43,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:43,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:57:43,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:43,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901918643] [2020-09-24 22:57:43,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:57:43,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 22:57:43,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393612446] [2020-09-24 22:57:43,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:57:43,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:43,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:57:43,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:57:43,923 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 5 states. [2020-09-24 22:57:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:44,084 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2020-09-24 22:57:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:57:44,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 22:57:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:44,086 INFO L225 Difference]: With dead ends: 67 [2020-09-24 22:57:44,086 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 22:57:44,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:57:44,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 22:57:44,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-24 22:57:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 22:57:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-09-24 22:57:44,094 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2020-09-24 22:57:44,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:44,094 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-09-24 22:57:44,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:57:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-09-24 22:57:44,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-24 22:57:44,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:44,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:44,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:57:44,096 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash -895592636, now seen corresponding path program 1 times [2020-09-24 22:57:44,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:44,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807122399] [2020-09-24 22:57:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:44,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:44,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:44,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:44,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:57:44,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:57:44,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-24 22:57:44,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:44,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:57:44,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:57:44,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:57:44,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:45,015 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 21 [2020-09-24 22:57:45,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:45,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:57:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:45,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807122399] [2020-09-24 22:57:45,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:57:45,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 22:57:45,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236565914] [2020-09-24 22:57:45,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:57:45,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:45,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:57:45,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:57:45,040 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 5 states. [2020-09-24 22:57:45,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:45,219 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2020-09-24 22:57:45,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:57:45,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-09-24 22:57:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:45,221 INFO L225 Difference]: With dead ends: 66 [2020-09-24 22:57:45,221 INFO L226 Difference]: Without dead ends: 47 [2020-09-24 22:57:45,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:57:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-24 22:57:45,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2020-09-24 22:57:45,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 22:57:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-09-24 22:57:45,228 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 31 [2020-09-24 22:57:45,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:45,229 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-09-24 22:57:45,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:57:45,229 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-09-24 22:57:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 22:57:45,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:45,230 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:45,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:57:45,231 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:45,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:45,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1939159041, now seen corresponding path program 1 times [2020-09-24 22:57:45,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:45,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203067304] [2020-09-24 22:57:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:45,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:45,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:46,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:46,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:57:46,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:57:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 979 [2020-09-24 22:57:46,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:57:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:57:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:57:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:49,696 WARN L193 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 37 DAG size of output: 13 [2020-09-24 22:57:49,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:49,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:49,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:49,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:49,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:57:49,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:49,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:49,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:49,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:49,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:57:49,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203067304] [2020-09-24 22:57:49,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:57:49,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 22:57:49,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500015885] [2020-09-24 22:57:49,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:57:49,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:49,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:57:49,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:57:49,725 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 5 states. [2020-09-24 22:57:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:51,956 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2020-09-24 22:57:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:57:51,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-09-24 22:57:51,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:51,957 INFO L225 Difference]: With dead ends: 64 [2020-09-24 22:57:51,958 INFO L226 Difference]: Without dead ends: 45 [2020-09-24 22:57:51,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:57:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-24 22:57:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2020-09-24 22:57:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 22:57:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-09-24 22:57:51,965 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2020-09-24 22:57:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:51,965 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-09-24 22:57:51,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:57:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-09-24 22:57:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 22:57:51,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:57:51,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:57:51,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:57:51,967 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:57:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:57:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1240166497, now seen corresponding path program 1 times [2020-09-24 22:57:51,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:57:51,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362500865] [2020-09-24 22:57:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:57:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:52,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:52,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:52,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:57:52,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:52,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-09-24 22:57:52,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 22:57:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 22:57:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 22:57:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:57:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:57:52,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:57:52,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:57:52,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:57:52,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:57:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:57:52,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:57:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:57:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:57:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:57:52,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:57:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 22:57:53,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362500865] [2020-09-24 22:57:53,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:57:53,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 22:57:53,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642119584] [2020-09-24 22:57:53,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:57:53,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:57:53,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:57:53,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:57:53,003 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 13 states. [2020-09-24 22:57:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:57:53,766 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-09-24 22:57:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 22:57:53,767 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-09-24 22:57:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:57:53,768 INFO L225 Difference]: With dead ends: 60 [2020-09-24 22:57:53,768 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:57:53,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2020-09-24 22:57:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:57:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:57:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:57:53,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:57:53,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-09-24 22:57:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:57:53,771 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:57:53,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:57:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:57:53,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:57:53,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:57:53,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:57:54,115 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-09-24 22:57:54,118 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:57:54,119 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-24 22:57:54,119 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:57:54,119 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:57:54,120 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 22:57:54,120 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 22:57:54,120 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:57:54,121 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 22:57:54,121 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 22:57:54,121 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 22:57:54,121 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 22:57:54,121 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 22:57:54,122 INFO L268 CegarLoopResult]: For program point L27(lines 27 30) no Hoare annotation was computed. [2020-09-24 22:57:54,122 INFO L268 CegarLoopResult]: For program point L27-2(lines 21 30) no Hoare annotation was computed. [2020-09-24 22:57:54,122 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed. [2020-09-24 22:57:54,122 INFO L268 CegarLoopResult]: For program point L23(lines 23 30) no Hoare annotation was computed. [2020-09-24 22:57:54,122 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 32) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-09-24 22:57:54,124 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 32) the Hoare annotation is: (let ((.cse12 (+ main_~i~0 main_~k~0)) (.cse10 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (let ((.cse2 (<= .cse10 main_~l~0)) (.cse0 (<= 0 .cse12)) (.cse9 (div .cse10 4294967296)) (.cse8 (div main_~l~0 4294967296)) (.cse3 (<= main_~i~0 0)) (.cse6 (<= 0 main_~i~0)) (.cse1 (+ main_~i~0 main_~j~0 main_~k~0)) (.cse7 (<= .cse12 0))) (or (let ((.cse5 (+ main_~l~0 (* 4294967296 .cse9))) (.cse4 (* 4294967296 .cse8))) (and .cse0 (<= 0 .cse1) .cse2 .cse3 (<= .cse1 0) (<= (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4) .cse5) .cse6 (< .cse5 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4 1)) .cse7)) (and (<= main_~l~0 .cse10) .cse2) (let ((.cse11 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0))) (and .cse0 (= (+ main_~l~0 (* .cse9 4294967296)) (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 (* .cse8 4294967296))) .cse3 (<= main_~l~0 .cse1) (<= main_~l~0 .cse11) .cse6 (<= .cse11 main_~l~0) (<= main_~l~0 0) (<= .cse1 main_~l~0) .cse7 (<= 0 main_~l~0)))))) [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 22:57:54,125 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L25(lines 25 30) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L21(lines 21 30) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 22:57:54,126 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2020-09-24 22:57:54,127 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 22:57:54,127 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 22:57:54,127 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 22:57:54,127 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 22:57:54,127 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 22:57:54,128 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 22:57:54,128 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 22:57:54,129 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 22:57:54,129 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 22:57:54,129 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 22:57:54,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:57:54 BoogieIcfgContainer [2020-09-24 22:57:54,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:57:54,169 INFO L168 Benchmark]: Toolchain (without parser) took 21584.96 ms. Allocated memory was 140.5 MB in the beginning and 318.2 MB in the end (delta: 177.7 MB). Free memory was 103.3 MB in the beginning and 234.6 MB in the end (delta: -131.3 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,170 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.79 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,172 INFO L168 Benchmark]: Boogie Preprocessor took 118.39 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 181.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,173 INFO L168 Benchmark]: RCFGBuilder took 381.74 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 165.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,174 INFO L168 Benchmark]: TraceAbstraction took 20752.82 ms. Allocated memory was 202.9 MB in the beginning and 318.2 MB in the end (delta: 115.3 MB). Free memory was 165.5 MB in the beginning and 234.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:57:54,178 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.79 ms. Allocated memory is still 140.5 MB. Free memory was 102.7 MB in the beginning and 92.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.39 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 181.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.74 ms. Allocated memory is still 202.9 MB. Free memory was 181.0 MB in the beginning and 165.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20752.82 ms. Allocated memory was 202.9 MB in the beginning and 318.2 MB in the end (delta: 115.3 MB). Free memory was 165.5 MB in the beginning and 234.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 46.3 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: 19]: Loop Invariant Derived loop invariant: l <= i + j + k + v3 + v4 && i + j + k + v3 + v4 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.2s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 210 SDtfs, 797 SDslu, 213 SDs, 0 SdLazy, 980 SolverSat, 118 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=7, 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, 8 MinimizatonAttempts, 95 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 16 PreInvPairs, 26 NumberOfFragments, 201 HoareAnnotationTreeSize, 16 FomulaSimplifications, 3488 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 53140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/27 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...