/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test29-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:18:04,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:18:04,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:18:04,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:18:04,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:18:04,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:18:04,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:18:04,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:18:04,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:18:04,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:18:04,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:18:04,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:18:04,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:18:05,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:18:05,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:18:05,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:18:05,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:18:05,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:18:05,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:18:05,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:18:05,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:18:05,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:18:05,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:18:05,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:18:05,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:18:05,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:18:05,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:18:05,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:18:05,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:18:05,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:18:05,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:18:05,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:18:05,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:18:05,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:18:05,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:18:05,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:18:05,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:18:05,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:18:05,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:18:05,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:18:05,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:18:05,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:18:05,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:18:05,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:18:05,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:18:05,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:18:05,094 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:18:05,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:18:05,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:18:05,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:18:05,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:18:05,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:18:05,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:18:05,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:18:05,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:18:05,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:18:05,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:18:05,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:18:05,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:18:05,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:18:05,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:18:05,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:18:05,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:18:05,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:18:05,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:18:05,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:18:05,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:18:05,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:18:05,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:18:05,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:18:05,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:18:05,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:18:05,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:18:05,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:18:05,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:18:05,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:18:05,576 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:18:05,578 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-2.c [2020-09-24 18:18:05,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ae79b0f/321fdd9bc4cd44bc98d65db481877d97/FLAG2b351fdf3 [2020-09-24 18:18:06,217 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:18:06,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test29-2.c [2020-09-24 18:18:06,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ae79b0f/321fdd9bc4cd44bc98d65db481877d97/FLAG2b351fdf3 [2020-09-24 18:18:06,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ae79b0f/321fdd9bc4cd44bc98d65db481877d97 [2020-09-24 18:18:06,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:18:06,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:18:06,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:18:06,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:18:06,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:18:06,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:06,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ae34dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06, skipping insertion in model container [2020-09-24 18:18:06,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:06,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:18:06,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:18:06,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:18:06,918 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:18:06,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:18:06,954 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:18:06,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06 WrapperNode [2020-09-24 18:18:06,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:18:06,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:18:06,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:18:06,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:18:07,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... [2020-09-24 18:18:07,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:18:07,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:18:07,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:18:07,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:18:07,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:18:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:18:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:18:07,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:18:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:18:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:18:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:18:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:18:07,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:18:07,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:18:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:18:07,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:18:07,487 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:18:07,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:07 BoogieIcfgContainer [2020-09-24 18:18:07,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:18:07,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:18:07,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:18:07,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:18:07,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:18:06" (1/3) ... [2020-09-24 18:18:07,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438e7b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:07, skipping insertion in model container [2020-09-24 18:18:07,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:06" (2/3) ... [2020-09-24 18:18:07,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438e7b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:07, skipping insertion in model container [2020-09-24 18:18:07,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:07" (3/3) ... [2020-09-24 18:18:07,510 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-2.c [2020-09-24 18:18:07,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:18:07,530 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:18:07,548 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:18:07,575 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:18:07,575 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:18:07,576 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:18:07,576 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:18:07,576 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:18:07,576 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:18:07,576 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:18:07,576 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:18:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 18:18:07,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 18:18:07,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:07,605 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] [2020-09-24 18:18:07,606 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:07,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:07,612 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-09-24 18:18:07,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:07,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486743408] [2020-09-24 18:18:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:07,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:07,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 18:18:08,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:18:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-09-24 18:18:08,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:08,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:18:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 18:18:08,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:18:08,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:18:08,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:08,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:08,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:18:08,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:18:08,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:08,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:18:08,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486743408] [2020-09-24 18:18:08,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:08,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:18:08,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996419678] [2020-09-24 18:18:08,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:18:08,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:18:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:18:08,722 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-09-24 18:18:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:08,848 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-09-24 18:18:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:18:08,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-24 18:18:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:08,862 INFO L225 Difference]: With dead ends: 54 [2020-09-24 18:18:08,863 INFO L226 Difference]: Without dead ends: 29 [2020-09-24 18:18:08,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:18:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-24 18:18:08,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-09-24 18:18:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-24 18:18:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-09-24 18:18:08,912 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-09-24 18:18:08,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:08,913 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-09-24 18:18:08,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:18:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-09-24 18:18:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 18:18:08,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:08,914 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] [2020-09-24 18:18:08,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:18:08,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:08,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:08,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-09-24 18:18:08,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:08,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942159786] [2020-09-24 18:18:08,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:08,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:09,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:09,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 18:18:09,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:18:09,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 18:18:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:09,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:18:09,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:18:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 18:18:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:10,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:10,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:10,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:18:10,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:18:10,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:18:10,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942159786] [2020-09-24 18:18:10,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:10,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:18:10,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417300181] [2020-09-24 18:18:10,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:18:10,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:10,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:18:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:18:10,067 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2020-09-24 18:18:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:10,249 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-09-24 18:18:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:18:10,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-09-24 18:18:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:10,252 INFO L225 Difference]: With dead ends: 52 [2020-09-24 18:18:10,252 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 18:18:10,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:18:10,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 18:18:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-09-24 18:18:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-24 18:18:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-09-24 18:18:10,262 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 26 [2020-09-24 18:18:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:10,263 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-09-24 18:18:10,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:18:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-09-24 18:18:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 18:18:10,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:10,265 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] [2020-09-24 18:18:10,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:18:10,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:10,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:10,266 INFO L82 PathProgramCache]: Analyzing trace with hash -316312164, now seen corresponding path program 1 times [2020-09-24 18:18:10,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:10,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008969539] [2020-09-24 18:18:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:10,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:10,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 18:18:10,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:18:10,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-24 18:18:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:18:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 18:18:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 18:18:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:10,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:10,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:10,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:10,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:18:10,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:10,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:18:10,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:10,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:10,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:10,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:10,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:10,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:18:10,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008969539] [2020-09-24 18:18:10,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:10,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:18:10,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987914819] [2020-09-24 18:18:10,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:18:10,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:10,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:18:10,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:18:10,767 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 8 states. [2020-09-24 18:18:10,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:10,982 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-09-24 18:18:10,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:18:10,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-09-24 18:18:10,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:10,984 INFO L225 Difference]: With dead ends: 42 [2020-09-24 18:18:10,984 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 18:18:10,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:18:10,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 18:18:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 18:18:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 18:18:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-09-24 18:18:10,991 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2020-09-24 18:18:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:10,991 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-09-24 18:18:10,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:18:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-09-24 18:18:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 18:18:10,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:10,993 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] [2020-09-24 18:18:10,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:18:10,993 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:10,994 INFO L82 PathProgramCache]: Analyzing trace with hash -497457956, now seen corresponding path program 1 times [2020-09-24 18:18:10,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:10,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356653987] [2020-09-24 18:18:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:11,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:11,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 18:18:11,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:18:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653 [2020-09-24 18:18:11,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:18:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:18:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 18:18:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:11,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:11,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:18:11,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:11,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:18:11,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:11,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:11,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:18:11,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356653987] [2020-09-24 18:18:11,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:11,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 18:18:11,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254836733] [2020-09-24 18:18:11,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:18:11,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:11,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:18:11,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:18:11,726 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 7 states. [2020-09-24 18:18:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:11,842 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-09-24 18:18:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:18:11,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-09-24 18:18:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:11,843 INFO L225 Difference]: With dead ends: 37 [2020-09-24 18:18:11,844 INFO L226 Difference]: Without dead ends: 27 [2020-09-24 18:18:11,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:18:11,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-24 18:18:11,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-24 18:18:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-24 18:18:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-09-24 18:18:11,849 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2020-09-24 18:18:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:11,849 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-09-24 18:18:11,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:18:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-09-24 18:18:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-24 18:18:11,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:11,851 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] [2020-09-24 18:18:11,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:18:11,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:11,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2080572732, now seen corresponding path program 1 times [2020-09-24 18:18:11,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:11,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856787631] [2020-09-24 18:18:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:12,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:12,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 18:18:12,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:18:12,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-09-24 18:18:12,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:18:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 18:18:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:18:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:12,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:12,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:12,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:12,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:18:12,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:12,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:18:12,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:12,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:18:12,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856787631] [2020-09-24 18:18:12,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:12,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:18:12,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735683315] [2020-09-24 18:18:12,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:18:12,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:12,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:18:12,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:18:12,492 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 5 states. [2020-09-24 18:18:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:12,534 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-09-24 18:18:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:18:12,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-09-24 18:18:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:12,536 INFO L225 Difference]: With dead ends: 27 [2020-09-24 18:18:12,536 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:18:12,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:18:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:18:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:18:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:18:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:18:12,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-09-24 18:18:12,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:12,538 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:18:12,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:18:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:18:12,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:18:12,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:18:12,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:18:12,586 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,586 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,586 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,587 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 18:18:12,587 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,587 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,587 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:18:12,587 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:18:12,587 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L19-1(lines 16 20) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-24 18:18:12,588 INFO L268 CegarLoopResult]: For program point L15-4(line 15) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L15-5(line 15) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,589 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L21-6(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L21-7(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,590 INFO L268 CegarLoopResult]: For program point L21-8(line 21) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-5(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,591 INFO L268 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,592 INFO L268 CegarLoopResult]: For program point L13-7(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,592 INFO L268 CegarLoopResult]: For program point L13-8(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,592 INFO L268 CegarLoopResult]: For program point L13-9(line 13) no Hoare annotation was computed. [2020-09-24 18:18:12,592 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2020-09-24 18:18:12,592 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 18:18:12,592 INFO L264 CegarLoopResult]: At program point L22(lines 12 29) the Hoare annotation is: false [2020-09-24 18:18:12,593 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 18:18:12,593 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 18:18:12,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:18:12 BoogieIcfgContainer [2020-09-24 18:18:12,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:18:12,612 INFO L168 Benchmark]: Toolchain (without parser) took 6010.66 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 102.0 MB in the beginning and 131.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,613 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.87 ms. Allocated memory is still 138.9 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,615 INFO L168 Benchmark]: Boogie Preprocessor took 122.00 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,616 INFO L168 Benchmark]: RCFGBuilder took 419.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 163.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,617 INFO L168 Benchmark]: TraceAbstraction took 5110.09 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 163.0 MB in the beginning and 131.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:18:12,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.87 ms. Allocated memory is still 138.9 MB. Free memory was 101.4 MB in the beginning and 91.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.00 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 163.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5110.09 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 163.0 MB in the beginning and 131.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 117 SDtfs, 119 SDslu, 273 SDs, 0 SdLazy, 251 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 7309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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...