/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -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-c90d42b [2020-09-24 15:08:05,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:08:05,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:08:05,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:08:05,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:08:05,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:08:05,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:08:05,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:08:05,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:08:05,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:08:05,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:08:05,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:08:05,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:08:05,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:08:05,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:08:05,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:08:05,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:08:05,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:08:05,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:08:05,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:08:05,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:08:05,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:08:05,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:08:05,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:08:05,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 15:08:05,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:08:05,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:08:05,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:08:05,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:08:05,920 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:08:05,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:08:05,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:08:05,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:08:05,924 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:08:05,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:08:05,925 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:08:05,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:08:05,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:08:05,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:08:05,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:08:05,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:08:05,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:08:05,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:08:05,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:08:05,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:08:05,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:08:05,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:08:05,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:08:05,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:08:05,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:08:05,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:08:05,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:08:05,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:08:05,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:08:05,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:08:05,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:08:05,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:08:05,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:08:05,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 15:08:06,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:08:06,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:08:06,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:08:06,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:08:06,403 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:08:06,404 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 15:08:06,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b5d7a6ea/7b675c02593c4069b95f774c47c8d20a/FLAGdc4812762 [2020-09-24 15:08:07,071 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:08:07,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 15:08:07,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b5d7a6ea/7b675c02593c4069b95f774c47c8d20a/FLAGdc4812762 [2020-09-24 15:08:07,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b5d7a6ea/7b675c02593c4069b95f774c47c8d20a [2020-09-24 15:08:07,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:08:07,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:08:07,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:08:07,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:08:07,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:08:07,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180772d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07, skipping insertion in model container [2020-09-24 15:08:07,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:08:07,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:08:07,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:08:07,783 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:08:07,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:08:07,840 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:08:07,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07 WrapperNode [2020-09-24 15:08:07,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:08:07,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:08:07,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:08:07,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:08:07,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... [2020-09-24 15:08:07,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:08:07,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:08:07,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:08:07,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:08:07,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:08:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:08:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:08:08,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 15:08:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 15:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 15:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 15:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:08:08,603 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:08:08,603 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:08:08,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:08:08 BoogieIcfgContainer [2020-09-24 15:08:08,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:08:08,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:08:08,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:08:08,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:08:08,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:08:07" (1/3) ... [2020-09-24 15:08:08,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5cfd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:08:08, skipping insertion in model container [2020-09-24 15:08:08,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:08:07" (2/3) ... [2020-09-24 15:08:08,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5cfd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:08:08, skipping insertion in model container [2020-09-24 15:08:08,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:08:08" (3/3) ... [2020-09-24 15:08:08,622 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-09-24 15:08:08,634 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:08:08,646 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-24 15:08:08,670 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-24 15:08:08,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:08:08,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:08:08,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:08:08,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:08:08,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:08:08,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:08:08,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:08:08,706 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:08:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-09-24 15:08:08,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 15:08:08,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:08,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:08,747 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]=== [2020-09-24 15:08:08,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:08,754 INFO L82 PathProgramCache]: Analyzing trace with hash -2057699390, now seen corresponding path program 1 times [2020-09-24 15:08:08,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:08,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626901086] [2020-09-24 15:08:08,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:09,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:09,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626901086] [2020-09-24 15:08:09,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:09,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:09,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571937095] [2020-09-24 15:08:09,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:09,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:09,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:09,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:09,143 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-09-24 15:08:10,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:10,023 INFO L93 Difference]: Finished difference Result 435 states and 497 transitions. [2020-09-24 15:08:10,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:08:10,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 15:08:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:10,059 INFO L225 Difference]: With dead ends: 435 [2020-09-24 15:08:10,059 INFO L226 Difference]: Without dead ends: 264 [2020-09-24 15:08:10,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:08:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-24 15:08:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 154. [2020-09-24 15:08:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 15:08:10,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 15:08:10,157 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 30 [2020-09-24 15:08:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:10,158 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 15:08:10,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 15:08:10,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 15:08:10,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:10,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:10,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:08:10,160 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]=== [2020-09-24 15:08:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143415, now seen corresponding path program 1 times [2020-09-24 15:08:10,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:10,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795993454] [2020-09-24 15:08:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:10,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:10,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795993454] [2020-09-24 15:08:10,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:10,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:10,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195755338] [2020-09-24 15:08:10,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:10,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:10,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:10,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:10,240 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 6 states. [2020-09-24 15:08:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:10,695 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2020-09-24 15:08:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:08:10,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-24 15:08:10,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:10,699 INFO L225 Difference]: With dead ends: 223 [2020-09-24 15:08:10,699 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 15:08:10,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:08:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 15:08:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2020-09-24 15:08:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 15:08:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 15:08:10,729 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 30 [2020-09-24 15:08:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:10,730 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 15:08:10,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:10,730 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 15:08:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 15:08:10,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:10,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:10,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:08:10,735 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]=== [2020-09-24 15:08:10,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:10,736 INFO L82 PathProgramCache]: Analyzing trace with hash 949374873, now seen corresponding path program 1 times [2020-09-24 15:08:10,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:10,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428948498] [2020-09-24 15:08:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:10,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:10,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428948498] [2020-09-24 15:08:10,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:10,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:10,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832109528] [2020-09-24 15:08:10,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:10,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:10,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:10,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:10,864 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 6 states. [2020-09-24 15:08:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:11,305 INFO L93 Difference]: Finished difference Result 263 states and 271 transitions. [2020-09-24 15:08:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:11,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 15:08:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:11,308 INFO L225 Difference]: With dead ends: 263 [2020-09-24 15:08:11,308 INFO L226 Difference]: Without dead ends: 261 [2020-09-24 15:08:11,309 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 [2020-09-24 15:08:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-24 15:08:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 150. [2020-09-24 15:08:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 15:08:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 15:08:11,321 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 35 [2020-09-24 15:08:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:11,321 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 15:08:11,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 15:08:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 15:08:11,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:11,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:11,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:08:11,324 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]=== [2020-09-24 15:08:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:11,324 INFO L82 PathProgramCache]: Analyzing trace with hash 386303974, now seen corresponding path program 1 times [2020-09-24 15:08:11,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:11,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164766315] [2020-09-24 15:08:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:11,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:11,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164766315] [2020-09-24 15:08:11,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:11,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:11,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948344830] [2020-09-24 15:08:11,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:11,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:11,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:11,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:11,412 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 6 states. [2020-09-24 15:08:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:11,707 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2020-09-24 15:08:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:11,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 15:08:11,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:11,710 INFO L225 Difference]: With dead ends: 192 [2020-09-24 15:08:11,710 INFO L226 Difference]: Without dead ends: 190 [2020-09-24 15:08:11,712 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 [2020-09-24 15:08:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-24 15:08:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 148. [2020-09-24 15:08:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-24 15:08:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2020-09-24 15:08:11,730 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 35 [2020-09-24 15:08:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:11,731 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2020-09-24 15:08:11,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2020-09-24 15:08:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 15:08:11,732 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:11,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:11,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:08:11,733 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]=== [2020-09-24 15:08:11,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1765112685, now seen corresponding path program 1 times [2020-09-24 15:08:11,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:11,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949966741] [2020-09-24 15:08:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:11,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949966741] [2020-09-24 15:08:11,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:11,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:08:11,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92311535] [2020-09-24 15:08:11,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:08:11,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:11,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:08:11,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:11,830 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 7 states. [2020-09-24 15:08:12,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:12,552 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2020-09-24 15:08:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:08:12,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-24 15:08:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:12,554 INFO L225 Difference]: With dead ends: 262 [2020-09-24 15:08:12,554 INFO L226 Difference]: Without dead ends: 260 [2020-09-24 15:08:12,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:08:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-24 15:08:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 146. [2020-09-24 15:08:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-24 15:08:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 150 transitions. [2020-09-24 15:08:12,564 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 150 transitions. Word has length 40 [2020-09-24 15:08:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:12,564 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 150 transitions. [2020-09-24 15:08:12,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:08:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 150 transitions. [2020-09-24 15:08:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 15:08:12,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:12,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:12,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:08:12,567 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]=== [2020-09-24 15:08:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:12,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1900232348, now seen corresponding path program 1 times [2020-09-24 15:08:12,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:12,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436330725] [2020-09-24 15:08:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:12,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436330725] [2020-09-24 15:08:12,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:12,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:12,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353305861] [2020-09-24 15:08:12,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:12,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:12,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:12,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:12,706 INFO L87 Difference]: Start difference. First operand 146 states and 150 transitions. Second operand 6 states. [2020-09-24 15:08:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:13,108 INFO L93 Difference]: Finished difference Result 267 states and 275 transitions. [2020-09-24 15:08:13,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:13,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 15:08:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:13,115 INFO L225 Difference]: With dead ends: 267 [2020-09-24 15:08:13,115 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 15:08:13,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:08:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 15:08:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 144. [2020-09-24 15:08:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-24 15:08:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 148 transitions. [2020-09-24 15:08:13,134 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 148 transitions. Word has length 45 [2020-09-24 15:08:13,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:13,135 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 148 transitions. [2020-09-24 15:08:13,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 148 transitions. [2020-09-24 15:08:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 15:08:13,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:13,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:13,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:08:13,139 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]=== [2020-09-24 15:08:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:13,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1678067487, now seen corresponding path program 1 times [2020-09-24 15:08:13,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:13,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498035036] [2020-09-24 15:08:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:13,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:13,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498035036] [2020-09-24 15:08:13,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:13,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:13,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964021067] [2020-09-24 15:08:13,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:13,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:13,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:13,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:13,292 INFO L87 Difference]: Start difference. First operand 144 states and 148 transitions. Second operand 6 states. [2020-09-24 15:08:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:13,641 INFO L93 Difference]: Finished difference Result 194 states and 202 transitions. [2020-09-24 15:08:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:08:13,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-09-24 15:08:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:13,644 INFO L225 Difference]: With dead ends: 194 [2020-09-24 15:08:13,645 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 15:08:13,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:08:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 15:08:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 142. [2020-09-24 15:08:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-24 15:08:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2020-09-24 15:08:13,654 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 45 [2020-09-24 15:08:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:13,657 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 146 transitions. [2020-09-24 15:08:13,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:13,657 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2020-09-24 15:08:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 15:08:13,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:13,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:13,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:08:13,665 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]=== [2020-09-24 15:08:13,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:13,665 INFO L82 PathProgramCache]: Analyzing trace with hash 776869197, now seen corresponding path program 1 times [2020-09-24 15:08:13,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:13,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745072033] [2020-09-24 15:08:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:13,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:13,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745072033] [2020-09-24 15:08:13,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:13,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:08:13,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651444927] [2020-09-24 15:08:13,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:08:13,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:13,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:08:13,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:08:13,771 INFO L87 Difference]: Start difference. First operand 142 states and 146 transitions. Second operand 8 states. [2020-09-24 15:08:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:14,474 INFO L93 Difference]: Finished difference Result 233 states and 244 transitions. [2020-09-24 15:08:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:08:14,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-24 15:08:14,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:14,476 INFO L225 Difference]: With dead ends: 233 [2020-09-24 15:08:14,476 INFO L226 Difference]: Without dead ends: 231 [2020-09-24 15:08:14,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:08:14,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-09-24 15:08:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 140. [2020-09-24 15:08:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-24 15:08:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 144 transitions. [2020-09-24 15:08:14,485 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 144 transitions. Word has length 50 [2020-09-24 15:08:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:14,486 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 144 transitions. [2020-09-24 15:08:14,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:08:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 144 transitions. [2020-09-24 15:08:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-24 15:08:14,490 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:14,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:14,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:08:14,491 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]=== [2020-09-24 15:08:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:14,492 INFO L82 PathProgramCache]: Analyzing trace with hash -828388948, now seen corresponding path program 1 times [2020-09-24 15:08:14,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:14,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903750006] [2020-09-24 15:08:14,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:14,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:14,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903750006] [2020-09-24 15:08:14,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:14,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:08:14,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608412986] [2020-09-24 15:08:14,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:08:14,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:14,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:08:14,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:14,607 INFO L87 Difference]: Start difference. First operand 140 states and 144 transitions. Second operand 7 states. [2020-09-24 15:08:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:15,086 INFO L93 Difference]: Finished difference Result 198 states and 206 transitions. [2020-09-24 15:08:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:08:15,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-09-24 15:08:15,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:15,088 INFO L225 Difference]: With dead ends: 198 [2020-09-24 15:08:15,088 INFO L226 Difference]: Without dead ends: 196 [2020-09-24 15:08:15,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:08:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-24 15:08:15,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2020-09-24 15:08:15,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-24 15:08:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2020-09-24 15:08:15,096 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 55 [2020-09-24 15:08:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:15,096 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2020-09-24 15:08:15,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:08:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2020-09-24 15:08:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 15:08:15,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:15,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:15,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:08:15,098 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]=== [2020-09-24 15:08:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash -2080692744, now seen corresponding path program 1 times [2020-09-24 15:08:15,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:15,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723915097] [2020-09-24 15:08:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:15,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:15,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723915097] [2020-09-24 15:08:15,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:15,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:08:15,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890280208] [2020-09-24 15:08:15,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:08:15,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:15,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:08:15,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:08:15,178 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 6 states. [2020-09-24 15:08:15,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:15,476 INFO L93 Difference]: Finished difference Result 203 states and 211 transitions. [2020-09-24 15:08:15,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:08:15,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 15:08:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:15,478 INFO L225 Difference]: With dead ends: 203 [2020-09-24 15:08:15,478 INFO L226 Difference]: Without dead ends: 201 [2020-09-24 15:08:15,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:08:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-24 15:08:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2020-09-24 15:08:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-24 15:08:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2020-09-24 15:08:15,486 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 60 [2020-09-24 15:08:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:15,486 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2020-09-24 15:08:15,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:08:15,487 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2020-09-24 15:08:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 15:08:15,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:15,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:15,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:08:15,488 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]=== [2020-09-24 15:08:15,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:15,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1555133305, now seen corresponding path program 1 times [2020-09-24 15:08:15,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:15,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499936371] [2020-09-24 15:08:15,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:15,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499936371] [2020-09-24 15:08:15,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:15,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:08:15,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10519708] [2020-09-24 15:08:15,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:08:15,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:15,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:08:15,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:15,604 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 7 states. [2020-09-24 15:08:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:16,243 INFO L93 Difference]: Finished difference Result 375 states and 390 transitions. [2020-09-24 15:08:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:08:16,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-09-24 15:08:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:16,245 INFO L225 Difference]: With dead ends: 375 [2020-09-24 15:08:16,246 INFO L226 Difference]: Without dead ends: 258 [2020-09-24 15:08:16,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:08:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-09-24 15:08:16,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 158. [2020-09-24 15:08:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-24 15:08:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 162 transitions. [2020-09-24 15:08:16,258 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 162 transitions. Word has length 69 [2020-09-24 15:08:16,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:16,258 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 162 transitions. [2020-09-24 15:08:16,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:08:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 162 transitions. [2020-09-24 15:08:16,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-24 15:08:16,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:16,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:16,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:08:16,261 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]=== [2020-09-24 15:08:16,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:16,261 INFO L82 PathProgramCache]: Analyzing trace with hash -623432219, now seen corresponding path program 1 times [2020-09-24 15:08:16,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:16,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685708687] [2020-09-24 15:08:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:16,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:16,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685708687] [2020-09-24 15:08:16,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:16,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:08:16,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011562940] [2020-09-24 15:08:16,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:08:16,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:16,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:08:16,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:16,387 INFO L87 Difference]: Start difference. First operand 158 states and 162 transitions. Second operand 7 states. [2020-09-24 15:08:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:16,949 INFO L93 Difference]: Finished difference Result 351 states and 362 transitions. [2020-09-24 15:08:16,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:08:16,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-09-24 15:08:16,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:16,952 INFO L225 Difference]: With dead ends: 351 [2020-09-24 15:08:16,952 INFO L226 Difference]: Without dead ends: 349 [2020-09-24 15:08:16,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:08:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-09-24 15:08:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 156. [2020-09-24 15:08:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-24 15:08:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 160 transitions. [2020-09-24 15:08:16,962 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 160 transitions. Word has length 74 [2020-09-24 15:08:16,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:16,962 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 160 transitions. [2020-09-24 15:08:16,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:08:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 160 transitions. [2020-09-24 15:08:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 15:08:16,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:16,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:16,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:08:16,964 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]=== [2020-09-24 15:08:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1977531324, now seen corresponding path program 1 times [2020-09-24 15:08:16,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:16,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660662573] [2020-09-24 15:08:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:17,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:17,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660662573] [2020-09-24 15:08:17,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:17,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:08:17,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355765181] [2020-09-24 15:08:17,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:08:17,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:17,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:08:17,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:08:17,068 INFO L87 Difference]: Start difference. First operand 156 states and 160 transitions. Second operand 8 states. [2020-09-24 15:08:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:17,711 INFO L93 Difference]: Finished difference Result 271 states and 282 transitions. [2020-09-24 15:08:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:08:17,712 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-24 15:08:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:17,713 INFO L225 Difference]: With dead ends: 271 [2020-09-24 15:08:17,714 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 15:08:17,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:08:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 15:08:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 154. [2020-09-24 15:08:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 15:08:17,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2020-09-24 15:08:17,723 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 79 [2020-09-24 15:08:17,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:17,723 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2020-09-24 15:08:17,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:08:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2020-09-24 15:08:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 15:08:17,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:17,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:17,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:08:17,725 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]=== [2020-09-24 15:08:17,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:17,725 INFO L82 PathProgramCache]: Analyzing trace with hash 108101264, now seen corresponding path program 1 times [2020-09-24 15:08:17,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:17,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174157748] [2020-09-24 15:08:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:17,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:17,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174157748] [2020-09-24 15:08:17,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:17,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:08:17,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591458322] [2020-09-24 15:08:17,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:08:17,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:17,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:08:17,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:08:17,832 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand 7 states. [2020-09-24 15:08:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:18,485 INFO L93 Difference]: Finished difference Result 439 states and 453 transitions. [2020-09-24 15:08:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:08:18,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-09-24 15:08:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:18,488 INFO L225 Difference]: With dead ends: 439 [2020-09-24 15:08:18,488 INFO L226 Difference]: Without dead ends: 437 [2020-09-24 15:08:18,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:08:18,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-24 15:08:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 152. [2020-09-24 15:08:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-24 15:08:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2020-09-24 15:08:18,501 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 84 [2020-09-24 15:08:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:18,501 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2020-09-24 15:08:18,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:08:18,501 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2020-09-24 15:08:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 15:08:18,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:18,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:18,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:08:18,503 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]=== [2020-09-24 15:08:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:18,504 INFO L82 PathProgramCache]: Analyzing trace with hash 274017809, now seen corresponding path program 1 times [2020-09-24 15:08:18,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:18,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125903307] [2020-09-24 15:08:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:18,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:18,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125903307] [2020-09-24 15:08:18,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:18,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:08:18,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876487954] [2020-09-24 15:08:18,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:08:18,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:18,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:08:18,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:08:18,622 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand 9 states. [2020-09-24 15:08:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:19,342 INFO L93 Difference]: Finished difference Result 281 states and 292 transitions. [2020-09-24 15:08:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:08:19,343 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-24 15:08:19,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:19,345 INFO L225 Difference]: With dead ends: 281 [2020-09-24 15:08:19,346 INFO L226 Difference]: Without dead ends: 279 [2020-09-24 15:08:19,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:08:19,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-09-24 15:08:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 150. [2020-09-24 15:08:19,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-24 15:08:19,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2020-09-24 15:08:19,356 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 93 [2020-09-24 15:08:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:19,356 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2020-09-24 15:08:19,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:08:19,357 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2020-09-24 15:08:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-24 15:08:19,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:08:19,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:08:19,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:08:19,359 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]=== [2020-09-24 15:08:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:08:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1620264573, now seen corresponding path program 1 times [2020-09-24 15:08:19,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:08:19,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273600137] [2020-09-24 15:08:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:08:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:19,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:08:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:08:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:08:19,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273600137] [2020-09-24 15:08:19,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:08:19,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:08:19,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271171161] [2020-09-24 15:08:19,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:08:19,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:08:19,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:08:19,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:08:19,473 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 8 states. [2020-09-24 15:08:20,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:08:20,783 INFO L93 Difference]: Finished difference Result 679 states and 701 transitions. [2020-09-24 15:08:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:08:20,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-09-24 15:08:20,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:08:20,784 INFO L225 Difference]: With dead ends: 679 [2020-09-24 15:08:20,785 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:08:20,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:08:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:08:20,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:08:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:08:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:08:20,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2020-09-24 15:08:20,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:08:20,795 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:08:20,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:08:20,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:08:20,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:08:20,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:08:20,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:08:21,657 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 146 [2020-09-24 15:08:22,175 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 114 [2020-09-24 15:08:22,516 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 100 [2020-09-24 15:08:22,930 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 47 [2020-09-24 15:08:23,222 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 20 [2020-09-24 15:08:23,510 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2020-09-24 15:08:23,514 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:08:23,514 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 15:08:23,515 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)|)) [2020-09-24 15:08:23,515 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:08:23,515 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:08:23,515 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:08:23,515 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:08:23,515 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:08:23,515 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:23,516 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 15:08:23,516 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 15:08:23,516 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:23,516 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-24 15:08:23,516 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-24 15:08:23,517 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L251(line 251) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 15:08:23,518 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L235(line 235) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-24 15:08:23,519 INFO L268 CegarLoopResult]: For program point L252(line 252) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (<= 0 main_~main__i~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0)) [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-09-24 15:08:23,520 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-24 15:08:23,521 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L237(line 237) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-09-24 15:08:23,522 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 15:08:23,523 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 15:08:23,524 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-24 15:08:23,525 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L256(line 256) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point L240(line 240) no Hoare annotation was computed. [2020-09-24 15:08:23,526 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-24 15:08:23,527 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-24 15:08:23,528 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-09-24 15:08:23,528 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__i~0 main_~main__len~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-09-24 15:08:23,529 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 15:08:23,530 INFO L268 CegarLoopResult]: For program point L260(line 260) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-24 15:08:23,531 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L261(line 261) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L63-2(line 63) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 15:08:23,532 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse3 (<= 0 main_~main__i~0)) (.cse4 (<= 0 main_~main__j~0)) (.cse7 (= |old(~__return_334~0)| ~__return_334~0)) (.cse6 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and (let ((.cse1 (<= (+ main_~main__j~0 4) main_~main__bufsize~0))) (let ((.cse0 (<= 1 main_~main__j~0)) (.cse2 (let ((.cse5 (<= 1 main_~main__i~0))) (or (and .cse3 .cse4 .cse1 .cse5 .cse6) (and .cse3 (not (= main_~__tmp_13~0 0)) .cse4 .cse5 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse6))))) (or (and .cse0 .cse1 .cse2) (and .cse0 (not (= main_~__tmp_15~0 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse2)))) .cse7) (and .cse3 .cse4 (<= (+ main_~main__i~0 1) main_~main__len~0) .cse7 .cse6))) [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-09-24 15:08:23,533 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 15:08:23,534 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 15:08:23,535 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L249(line 249) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 15:08:23,536 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-09-24 15:08:23,537 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-09-24 15:08:23,537 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-24 15:08:23,537 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-09-24 15:08:23,537 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-24 15:08:23,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:08:23 BoogieIcfgContainer [2020-09-24 15:08:23,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:08:23,567 INFO L168 Benchmark]: Toolchain (without parser) took 16127.96 ms. Allocated memory was 147.3 MB in the beginning and 351.8 MB in the end (delta: 204.5 MB). Free memory was 102.1 MB in the beginning and 210.0 MB in the end (delta: -107.9 MB). Peak memory consumption was 212.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:23,568 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:08:23,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.40 ms. Allocated memory is still 147.3 MB. Free memory was 101.5 MB in the beginning and 89.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:23,569 INFO L168 Benchmark]: Boogie Preprocessor took 131.92 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 89.4 MB in the beginning and 180.2 MB in the end (delta: -90.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:23,570 INFO L168 Benchmark]: RCFGBuilder took 637.31 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 149.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:23,571 INFO L168 Benchmark]: TraceAbstraction took 14952.65 ms. Allocated memory was 202.9 MB in the beginning and 351.8 MB in the end (delta: 148.9 MB). Free memory was 148.8 MB in the beginning and 210.0 MB in the end (delta: -61.2 MB). Peak memory consumption was 203.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:08:23,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.40 ms. Allocated memory is still 147.3 MB. Free memory was 101.5 MB in the beginning and 89.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.92 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 89.4 MB in the beginning and 180.2 MB in the end (delta: -90.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 637.31 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 149.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14952.65 ms. Allocated memory was 202.9 MB in the beginning and 351.8 MB in the end (delta: 148.9 MB). Free memory was 148.8 MB in the beginning and 210.0 MB in the end (delta: -61.2 MB). Peak memory consumption was 203.1 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 && main__j + 4 <= main__bufsize) && (((((0 <= main__i && 0 <= main__j) && main__j + 4 <= main__bufsize) && 1 <= main__i) && main__limit + 4 <= main__bufsize) || (((((0 <= main__i && !(__tmp_13 == 0)) && 0 <= main__j) && 1 <= main__i) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize))) || (((1 <= main__j && !(__tmp_15 == 0)) && !(__VERIFIER_assert__cond == 0)) && (((((0 <= main__i && 0 <= main__j) && main__j + 4 <= main__bufsize) && 1 <= main__i) && main__limit + 4 <= main__bufsize) || (((((0 <= main__i && !(__tmp_13 == 0)) && 0 <= main__j) && 1 <= main__i) && !(__VERIFIER_assert__cond == 0)) && main__limit + 4 <= main__bufsize)))) && \old(__return_334) == __return_334) || ((((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__i < main__len) && main__j + 5 <= main__bufsize) && \old(__return_334) == __return_334) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= main__i && main__limit + 4 <= main__bufsize) && \old(__return_334) == __return_334 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 183 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3461 SDtfs, 8686 SDslu, 396 SDs, 0 SdLazy, 6219 SolverSat, 240 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred 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: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1653 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 36 NumberOfFragments, 182 HoareAnnotationTreeSize, 7 FomulaSimplifications, 2044841502 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 413901 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 906 ConstructedInterpolants, 0 QuantifiedInterpolants, 182160 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...