/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:55:22,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:55:22,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:55:22,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:55:22,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:55:22,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:55:22,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:55:22,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:55:22,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:55:22,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:55:22,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:55:22,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:55:22,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:55:22,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:55:22,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:55:22,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:55:22,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:55:22,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:55:22,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:55:22,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:55:22,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:55:22,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:55:22,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:55:22,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:55:22,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:55:22,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:55:22,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:55:22,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:55:22,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:55:22,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 23:55:22,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:55:22,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:55:22,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:55:22,625 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 [2020-08-21 23:55:22,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:55:22,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:55:22,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:55:22,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:55:22,650 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:55:22,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:55:22,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:55:22,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:55:22,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:55:22,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:55:22,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:55:22,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:55:22,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:55:22,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:55:22,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:55:22,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:55:22,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:55:22,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:55:22,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:55:22,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:55:22,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:55:22,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:55:22,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:55:22,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:55:22,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:55:22,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:55:22,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:55:22,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:55:22,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:55:22,655 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:55:22,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:55:23,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:55:23,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:55:23,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:55:23,012 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:55:23,013 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-08-21 23:55:23,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9c808dc6/ae365e562b184ce68160b5c5c15051ce/FLAG34d66165c [2020-08-21 23:55:23,607 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:55:23,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-08-21 23:55:23,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9c808dc6/ae365e562b184ce68160b5c5c15051ce/FLAG34d66165c [2020-08-21 23:55:23,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9c808dc6/ae365e562b184ce68160b5c5c15051ce [2020-08-21 23:55:24,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:55:24,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:55:24,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:55:24,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:55:24,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:55:24,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e51550b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24, skipping insertion in model container [2020-08-21 23:55:24,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:55:24,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:55:24,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:55:24,275 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:55:24,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:55:24,325 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:55:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24 WrapperNode [2020-08-21 23:55:24,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:55:24,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:55:24,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:55:24,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:55:24,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (1/1) ... [2020-08-21 23:55:24,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:55:24,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:55:24,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:55:24,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:55:24,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (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 [2020-08-21 23:55:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:55:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:55:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 23:55:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:55:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:55:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 23:55:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 23:55:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 23:55:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:55:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:55:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:55:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:55:24,869 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:55:24,870 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 23:55:24,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:55:24 BoogieIcfgContainer [2020-08-21 23:55:24,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:55:24,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:55:24,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:55:24,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:55:24,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:55:24" (1/3) ... [2020-08-21 23:55:24,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d002b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:55:24, skipping insertion in model container [2020-08-21 23:55:24,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:55:24" (2/3) ... [2020-08-21 23:55:24,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d002b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:55:24, skipping insertion in model container [2020-08-21 23:55:24,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:55:24" (3/3) ... [2020-08-21 23:55:24,883 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-08-21 23:55:24,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:55:24,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-08-21 23:55:24,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-08-21 23:55:24,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:55:24,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:55:24,945 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:55:24,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:55:24,946 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:55:24,946 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:55:24,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:55:24,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:55:24,983 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-08-21 23:55:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 23:55:24,990 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:24,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:24,992 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:24,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:24,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1781845407, now seen corresponding path program 1 times [2020-08-21 23:55:25,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:25,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449707725] [2020-08-21 23:55:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:25,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449707725] [2020-08-21 23:55:25,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:25,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 23:55:25,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365553026] [2020-08-21 23:55:25,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 23:55:25,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:25,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 23:55:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 23:55:25,233 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-08-21 23:55:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:25,365 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-08-21 23:55:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:55:25,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-08-21 23:55:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:25,379 INFO L225 Difference]: With dead ends: 90 [2020-08-21 23:55:25,380 INFO L226 Difference]: Without dead ends: 76 [2020-08-21 23:55:25,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-08-21 23:55:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2020-08-21 23:55:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-21 23:55:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-08-21 23:55:25,435 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2020-08-21 23:55:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:25,435 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-08-21 23:55:25,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 23:55:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-08-21 23:55:25,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 23:55:25,436 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:25,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:25,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:55:25,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash -594195383, now seen corresponding path program 1 times [2020-08-21 23:55:25,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:25,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188681451] [2020-08-21 23:55:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:25,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188681451] [2020-08-21 23:55:25,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:25,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:25,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688811824] [2020-08-21 23:55:25,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:25,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:25,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:25,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:25,521 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-08-21 23:55:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:25,781 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2020-08-21 23:55:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:55:25,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-21 23:55:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:25,784 INFO L225 Difference]: With dead ends: 153 [2020-08-21 23:55:25,785 INFO L226 Difference]: Without dead ends: 101 [2020-08-21 23:55:25,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:55:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-08-21 23:55:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2020-08-21 23:55:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-21 23:55:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-08-21 23:55:25,801 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2020-08-21 23:55:25,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:25,804 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-08-21 23:55:25,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-08-21 23:55:25,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 23:55:25,805 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:25,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:25,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:55:25,806 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:25,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:25,810 INFO L82 PathProgramCache]: Analyzing trace with hash -597364152, now seen corresponding path program 1 times [2020-08-21 23:55:25,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:25,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63893775] [2020-08-21 23:55:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:25,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63893775] [2020-08-21 23:55:25,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:25,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:25,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358729639] [2020-08-21 23:55:25,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:25,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:25,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:25,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:25,921 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2020-08-21 23:55:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:26,038 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-08-21 23:55:26,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:55:26,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-21 23:55:26,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:26,040 INFO L225 Difference]: With dead ends: 75 [2020-08-21 23:55:26,040 INFO L226 Difference]: Without dead ends: 73 [2020-08-21 23:55:26,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-21 23:55:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2020-08-21 23:55:26,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-08-21 23:55:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-08-21 23:55:26,050 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2020-08-21 23:55:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:26,050 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-08-21 23:55:26,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-08-21 23:55:26,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 23:55:26,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:26,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:26,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:55:26,052 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:26,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1240184593, now seen corresponding path program 1 times [2020-08-21 23:55:26,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:26,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269123619] [2020-08-21 23:55:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:26,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269123619] [2020-08-21 23:55:26,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:26,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:26,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4260075] [2020-08-21 23:55:26,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:26,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:26,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:26,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:26,114 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-08-21 23:55:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:26,269 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2020-08-21 23:55:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:55:26,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-08-21 23:55:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:26,271 INFO L225 Difference]: With dead ends: 96 [2020-08-21 23:55:26,271 INFO L226 Difference]: Without dead ends: 94 [2020-08-21 23:55:26,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:26,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-08-21 23:55:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 54. [2020-08-21 23:55:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-21 23:55:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-08-21 23:55:26,280 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2020-08-21 23:55:26,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:26,281 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-08-21 23:55:26,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-08-21 23:55:26,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:55:26,282 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:26,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:26,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:55:26,283 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:26,283 INFO L82 PathProgramCache]: Analyzing trace with hash 208986383, now seen corresponding path program 1 times [2020-08-21 23:55:26,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:26,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167742057] [2020-08-21 23:55:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:26,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167742057] [2020-08-21 23:55:26,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:26,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:55:26,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793562375] [2020-08-21 23:55:26,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:55:26,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:26,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:55:26,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:55:26,361 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2020-08-21 23:55:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:26,585 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-08-21 23:55:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:55:26,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 23:55:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:26,586 INFO L225 Difference]: With dead ends: 95 [2020-08-21 23:55:26,587 INFO L226 Difference]: Without dead ends: 93 [2020-08-21 23:55:26,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:55:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-08-21 23:55:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 52. [2020-08-21 23:55:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-21 23:55:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-08-21 23:55:26,595 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2020-08-21 23:55:26,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:26,595 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-08-21 23:55:26,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:55:26,596 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-08-21 23:55:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:55:26,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:26,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:26,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:55:26,597 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:26,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1458792136, now seen corresponding path program 1 times [2020-08-21 23:55:26,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:26,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714677266] [2020-08-21 23:55:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:26,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714677266] [2020-08-21 23:55:26,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:26,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:26,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513074856] [2020-08-21 23:55:26,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:26,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:26,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:26,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:26,663 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2020-08-21 23:55:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:26,827 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-08-21 23:55:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:55:26,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-21 23:55:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:26,829 INFO L225 Difference]: With dead ends: 69 [2020-08-21 23:55:26,829 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 23:55:26,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:55:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 23:55:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2020-08-21 23:55:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-21 23:55:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-08-21 23:55:26,846 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2020-08-21 23:55:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:26,846 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-08-21 23:55:26,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-08-21 23:55:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:55:26,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:26,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:26,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:55:26,850 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash -2111353611, now seen corresponding path program 1 times [2020-08-21 23:55:26,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:26,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351884028] [2020-08-21 23:55:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:26,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351884028] [2020-08-21 23:55:26,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:26,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:26,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605931640] [2020-08-21 23:55:26,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:26,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:26,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:26,960 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 5 states. [2020-08-21 23:55:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:27,099 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-08-21 23:55:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:55:27,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-21 23:55:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:27,100 INFO L225 Difference]: With dead ends: 91 [2020-08-21 23:55:27,100 INFO L226 Difference]: Without dead ends: 89 [2020-08-21 23:55:27,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-08-21 23:55:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 48. [2020-08-21 23:55:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-21 23:55:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-08-21 23:55:27,107 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2020-08-21 23:55:27,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:27,108 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-08-21 23:55:27,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-08-21 23:55:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:55:27,109 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:27,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:27,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:55:27,109 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2022080917, now seen corresponding path program 1 times [2020-08-21 23:55:27,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:27,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98212267] [2020-08-21 23:55:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:27,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98212267] [2020-08-21 23:55:27,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:27,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:55:27,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012798859] [2020-08-21 23:55:27,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:55:27,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:27,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:55:27,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:55:27,164 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 6 states. [2020-08-21 23:55:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:27,346 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2020-08-21 23:55:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:55:27,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 23:55:27,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:27,347 INFO L225 Difference]: With dead ends: 73 [2020-08-21 23:55:27,347 INFO L226 Difference]: Without dead ends: 71 [2020-08-21 23:55:27,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:55:27,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-21 23:55:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2020-08-21 23:55:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-08-21 23:55:27,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-08-21 23:55:27,354 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2020-08-21 23:55:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:27,355 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-08-21 23:55:27,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:55:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-08-21 23:55:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 23:55:27,356 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:27,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:27,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:55:27,356 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:27,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:27,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1740004142, now seen corresponding path program 1 times [2020-08-21 23:55:27,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:27,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770708335] [2020-08-21 23:55:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:27,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770708335] [2020-08-21 23:55:27,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:27,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:55:27,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585117427] [2020-08-21 23:55:27,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:55:27,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:27,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:55:27,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:55:27,422 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2020-08-21 23:55:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:27,563 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-08-21 23:55:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:55:27,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 23:55:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:27,565 INFO L225 Difference]: With dead ends: 61 [2020-08-21 23:55:27,565 INFO L226 Difference]: Without dead ends: 59 [2020-08-21 23:55:27,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:55:27,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-21 23:55:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2020-08-21 23:55:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-21 23:55:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-08-21 23:55:27,571 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2020-08-21 23:55:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:27,572 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-08-21 23:55:27,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:55:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-08-21 23:55:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 23:55:27,573 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:27,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:55:27,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:55:27,573 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:27,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:27,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1894443311, now seen corresponding path program 1 times [2020-08-21 23:55:27,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:27,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771962293] [2020-08-21 23:55:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:27,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771962293] [2020-08-21 23:55:27,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:27,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:27,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121112975] [2020-08-21 23:55:27,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:27,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:27,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:27,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:27,645 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-08-21 23:55:27,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:27,735 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-08-21 23:55:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:55:27,736 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-08-21 23:55:27,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:27,737 INFO L225 Difference]: With dead ends: 61 [2020-08-21 23:55:27,737 INFO L226 Difference]: Without dead ends: 59 [2020-08-21 23:55:27,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:27,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-21 23:55:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2020-08-21 23:55:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-21 23:55:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-08-21 23:55:27,747 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2020-08-21 23:55:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:27,748 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-08-21 23:55:27,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-08-21 23:55:27,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 23:55:27,752 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:27,752 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] [2020-08-21 23:55:27,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:55:27,752 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:27,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:27,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1401802644, now seen corresponding path program 1 times [2020-08-21 23:55:27,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:27,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752002562] [2020-08-21 23:55:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:27,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752002562] [2020-08-21 23:55:27,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:27,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:55:27,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334151362] [2020-08-21 23:55:27,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:55:27,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:27,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:55:27,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:55:27,831 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2020-08-21 23:55:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:27,994 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-08-21 23:55:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:55:27,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-21 23:55:27,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:27,995 INFO L225 Difference]: With dead ends: 69 [2020-08-21 23:55:27,996 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 23:55:27,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:55:27,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 23:55:28,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2020-08-21 23:55:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 23:55:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-08-21 23:55:28,004 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2020-08-21 23:55:28,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:28,004 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-08-21 23:55:28,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:55:28,004 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-08-21 23:55:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-21 23:55:28,005 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:28,005 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] [2020-08-21 23:55:28,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:55:28,006 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:28,006 INFO L82 PathProgramCache]: Analyzing trace with hash 506212151, now seen corresponding path program 1 times [2020-08-21 23:55:28,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:28,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312819607] [2020-08-21 23:55:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:28,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312819607] [2020-08-21 23:55:28,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:28,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:55:28,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276189643] [2020-08-21 23:55:28,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:55:28,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:28,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:55:28,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:55:28,048 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2020-08-21 23:55:28,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:28,204 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2020-08-21 23:55:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:55:28,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-21 23:55:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:28,206 INFO L225 Difference]: With dead ends: 74 [2020-08-21 23:55:28,206 INFO L226 Difference]: Without dead ends: 72 [2020-08-21 23:55:28,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:55:28,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-08-21 23:55:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2020-08-21 23:55:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-21 23:55:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-08-21 23:55:28,214 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2020-08-21 23:55:28,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:28,214 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-08-21 23:55:28,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:55:28,215 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-08-21 23:55:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 23:55:28,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:28,216 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] [2020-08-21 23:55:28,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 23:55:28,216 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1487289350, now seen corresponding path program 1 times [2020-08-21 23:55:28,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:28,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078341614] [2020-08-21 23:55:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:28,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078341614] [2020-08-21 23:55:28,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:28,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:55:28,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574775106] [2020-08-21 23:55:28,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:55:28,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:28,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:55:28,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:28,270 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2020-08-21 23:55:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:28,476 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2020-08-21 23:55:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:55:28,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-08-21 23:55:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:28,478 INFO L225 Difference]: With dead ends: 62 [2020-08-21 23:55:28,478 INFO L226 Difference]: Without dead ends: 60 [2020-08-21 23:55:28,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:55:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-08-21 23:55:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2020-08-21 23:55:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-21 23:55:28,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-08-21 23:55:28,484 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2020-08-21 23:55:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:28,486 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-08-21 23:55:28,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:55:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-08-21 23:55:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 23:55:28,490 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:28,490 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] [2020-08-21 23:55:28,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 23:55:28,491 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:28,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:28,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1138673565, now seen corresponding path program 1 times [2020-08-21 23:55:28,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:28,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429464646] [2020-08-21 23:55:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:28,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429464646] [2020-08-21 23:55:28,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:28,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:55:28,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818486460] [2020-08-21 23:55:28,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:55:28,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:28,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:55:28,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:55:28,564 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-08-21 23:55:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:28,767 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2020-08-21 23:55:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:55:28,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-21 23:55:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:28,768 INFO L225 Difference]: With dead ends: 87 [2020-08-21 23:55:28,769 INFO L226 Difference]: Without dead ends: 85 [2020-08-21 23:55:28,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:55:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-08-21 23:55:28,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 34. [2020-08-21 23:55:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-08-21 23:55:28,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-08-21 23:55:28,777 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2020-08-21 23:55:28,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:28,777 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-08-21 23:55:28,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:55:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-08-21 23:55:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-21 23:55:28,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:28,778 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] [2020-08-21 23:55:28,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 23:55:28,779 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:28,779 INFO L82 PathProgramCache]: Analyzing trace with hash 939145312, now seen corresponding path program 1 times [2020-08-21 23:55:28,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:28,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548104688] [2020-08-21 23:55:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:28,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548104688] [2020-08-21 23:55:28,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:28,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:55:28,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617229051] [2020-08-21 23:55:28,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:55:28,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:28,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:55:28,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:28,832 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2020-08-21 23:55:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:29,023 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-08-21 23:55:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:55:29,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-08-21 23:55:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:29,024 INFO L225 Difference]: With dead ends: 60 [2020-08-21 23:55:29,025 INFO L226 Difference]: Without dead ends: 58 [2020-08-21 23:55:29,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:55:29,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-08-21 23:55:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2020-08-21 23:55:29,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-21 23:55:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-08-21 23:55:29,030 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-08-21 23:55:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:29,030 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-08-21 23:55:29,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:55:29,030 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-08-21 23:55:29,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-21 23:55:29,031 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:55:29,031 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] [2020-08-21 23:55:29,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 23:55:29,031 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:55:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:55:29,032 INFO L82 PathProgramCache]: Analyzing trace with hash -951263229, now seen corresponding path program 1 times [2020-08-21 23:55:29,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:55:29,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694974056] [2020-08-21 23:55:29,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:55:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:55:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:55:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:55:29,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694974056] [2020-08-21 23:55:29,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:55:29,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:55:29,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497959643] [2020-08-21 23:55:29,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:55:29,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:55:29,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:55:29,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:55:29,081 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-08-21 23:55:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:55:29,401 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2020-08-21 23:55:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:55:29,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-08-21 23:55:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:55:29,402 INFO L225 Difference]: With dead ends: 125 [2020-08-21 23:55:29,402 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:55:29,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:55:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:55:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:55:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:55:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:55:29,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-08-21 23:55:29,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:55:29,404 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:55:29,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:55:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:55:29,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:55:29,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 23:55:29,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:55:29,655 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 103 [2020-08-21 23:55:29,825 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 97 [2020-08-21 23:55:29,979 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 41 [2020-08-21 23:55:30,293 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2020-08-21 23:55:30,511 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 23 [2020-08-21 23:55:30,571 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:55:30,572 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_334~0 |old(~__return_334~0)|) (= ~__return_main~0 |old(~__return_main~0)|)) [2020-08-21 23:55:30,572 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:55:30,572 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:55:30,572 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 23:55:30,572 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:55:30,573 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-08-21 23:55:30,574 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-08-21 23:55:30,575 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-08-21 23:55:30,576 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-08-21 23:55:30,576 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-08-21 23:55:30,577 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-08-21 23:55:30,577 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-08-21 23:55:30,577 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-08-21 23:55:30,577 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse2 (<= (+ main_~main__j~0 4) main_~main__bufsize~0)) (.cse4 (<= 0 main_~main__j~0)) (.cse5 (= |old(~__return_334~0)| ~__return_334~0))) (let ((.cse0 (<= 1 main_~main__j~0)) (.cse1 (let ((.cse6 (<= 1 main_~main__i~0))) (or (and .cse4 .cse6 .cse2 .cse5) (and .cse4 .cse6 .cse5 (not (= main_~__VERIFIER_assert__cond~12 0)))))) (.cse3 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse3) (and (<= 0 main_~main__i~0) .cse4 (<= (+ main_~main__i~0 1) main_~main__len~0) .cse5 .cse3)))) [2020-08-21 23:55:30,577 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 23:55:30,577 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-08-21 23:55:30,578 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-08-21 23:55:30,579 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-08-21 23:55:30,580 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-08-21 23:55:30,581 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-08-21 23:55:30,581 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-08-21 23:55:30,581 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 23:55:30,581 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-08-21 23:55:30,581 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= 0 main_~main__i~0) (<= 0 main_~main__j~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__i~0 1) main_~main__len~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-08-21 23:55:30,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:55:30 BoogieIcfgContainer [2020-08-21 23:55:30,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:55:30,608 INFO L168 Benchmark]: Toolchain (without parser) took 6599.22 ms. Allocated memory was 140.0 MB in the beginning and 302.0 MB in the end (delta: 162.0 MB). Free memory was 101.4 MB in the beginning and 246.8 MB in the end (delta: -145.4 MB). Peak memory consumption was 146.1 MB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,609 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.58 ms. Allocated memory is still 140.0 MB. Free memory was 101.2 MB in the beginning and 89.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,611 INFO L168 Benchmark]: Boogie Preprocessor took 119.48 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 89.0 MB in the beginning and 179.6 MB in the end (delta: -90.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,611 INFO L168 Benchmark]: RCFGBuilder took 429.11 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 157.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,612 INFO L168 Benchmark]: TraceAbstraction took 5729.80 ms. Allocated memory was 202.4 MB in the beginning and 302.0 MB in the end (delta: 99.6 MB). Free memory was 156.7 MB in the beginning and 246.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 139.1 MB. Max. memory is 7.1 GB. [2020-08-21 23:55:30,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.58 ms. Allocated memory is still 140.0 MB. Free memory was 101.2 MB in the beginning and 89.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.48 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 89.0 MB in the beginning and 179.6 MB in the end (delta: -90.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.11 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 157.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5729.80 ms. Allocated memory was 202.4 MB in the beginning and 302.0 MB in the end (delta: 99.6 MB). Free memory was 156.7 MB in the beginning and 246.8 MB in the end (delta: -90.1 MB). Peak memory consumption was 139.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 255]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 163]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 227]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 243]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 98]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 203]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 74]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 57]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((1 <= main__j && ((((0 <= main__j && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__j && 1 <= main__i) && \old(__return_334) == __return_334) && !(__VERIFIER_assert__cond == 0)))) && main__j + 4 <= main__bufsize) && main__limit + 4 <= main__bufsize) || (((1 <= main__j && ((((0 <= main__j && 1 <= main__i) && main__j + 4 <= main__bufsize) && \old(__return_334) == __return_334) || (((0 <= main__j && 1 <= main__i) && \old(__return_334) == __return_334) && !(__VERIFIER_assert__cond == 0)))) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize)) || ((((0 <= main__i && 0 <= main__j) && main__i + 1 <= main__len) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((0 <= main__i && 0 <= main__j) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__i + 1 <= main__len) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 935 SDtfs, 1910 SDslu, 227 SDs, 0 SdLazy, 1420 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 435 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 157 HoareAnnotationTreeSize, 7 FomulaSimplifications, 909297226 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 567672 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 15056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...