/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 -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 0.1.25-86f66a4 [2020-07-07 11:33:25,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:33:25,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:33:25,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:33:25,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:33:25,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:33:25,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:33:25,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:33:25,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:33:25,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:33:25,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:33:25,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:33:25,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:33:25,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:33:25,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:33:25,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:33:25,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:33:25,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:33:25,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:33:25,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:33:25,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:33:25,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:33:25,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:33:25,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:33:25,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:33:25,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:33:25,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:33:25,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:33:25,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:33:25,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:33:25,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:33:25,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:33:25,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:33:25,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:33:25,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:33:25,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:33:25,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:33:25,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:33:25,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:33:25,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:33:25,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:33:25,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:33:25,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:33:25,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:33:25,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:33:25,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:33:25,749 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:33:25,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:33:25,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:33:25,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:33:25,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:33:25,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:33:25,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:33:25,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:33:25,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:33:25,750 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:33:25,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:33:25,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:33:25,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:33:25,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:33:25,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:33:25,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:33:25,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:33:25,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:25,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:33:25,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:33:25,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:33:25,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:33:25,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:33:25,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:33:25,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:33:25,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:33:26,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:33:26,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:33:26,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:33:26,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:33:26,055 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:33:26,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-07-07 11:33:26,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43ad67b34/a6965ae51a8a4408b1caadf21b6386bd/FLAG6cb91aff2 [2020-07-07 11:33:26,598 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:33:26,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2020-07-07 11:33:26,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43ad67b34/a6965ae51a8a4408b1caadf21b6386bd/FLAG6cb91aff2 [2020-07-07 11:33:26,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43ad67b34/a6965ae51a8a4408b1caadf21b6386bd [2020-07-07 11:33:26,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:33:26,971 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:33:26,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:26,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:33:26,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:33:26,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:26" (1/1) ... [2020-07-07 11:33:26,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acbf1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:26, skipping insertion in model container [2020-07-07 11:33:26,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:26" (1/1) ... [2020-07-07 11:33:26,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:33:27,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:33:27,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:27,226 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:33:27,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:27,271 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:33:27,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27 WrapperNode [2020-07-07 11:33:27,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:27,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:33:27,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:33:27,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:33:27,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... [2020-07-07 11:33:27,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:33:27,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:33:27,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:33:27,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:33:27,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-07 11:33:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:33:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:33:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:33:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:33:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:33:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:33:27,798 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:33:27,798 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:33:27,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:27 BoogieIcfgContainer [2020-07-07 11:33:27,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:33:27,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:33:27,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:33:27,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:33:27,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:33:26" (1/3) ... [2020-07-07 11:33:27,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daeaf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:27, skipping insertion in model container [2020-07-07 11:33:27,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:27" (2/3) ... [2020-07-07 11:33:27,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5daeaf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:27, skipping insertion in model container [2020-07-07 11:33:27,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:27" (3/3) ... [2020-07-07 11:33:27,815 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2020-07-07 11:33:27,826 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:33:27,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-07-07 11:33:27,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-07-07 11:33:27,875 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:33:27,876 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:33:27,876 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:33:27,876 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:33:27,876 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:33:27,877 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:33:27,877 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:33:27,877 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:33:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-07-07 11:33:27,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-07 11:33:27,910 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:27,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:27,913 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]=== [2020-07-07 11:33:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1781845407, now seen corresponding path program 1 times [2020-07-07 11:33:27,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:27,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298405865] [2020-07-07 11:33:27,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:28,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298405865] [2020-07-07 11:33:28,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:28,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:33:28,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789826672] [2020-07-07 11:33:28,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:33:28,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:28,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:33:28,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:33:28,154 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-07-07 11:33:28,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:28,287 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2020-07-07 11:33:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:28,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-07 11:33:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:28,300 INFO L225 Difference]: With dead ends: 90 [2020-07-07 11:33:28,301 INFO L226 Difference]: Without dead ends: 76 [2020-07-07 11:33:28,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-07 11:33:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2020-07-07 11:33:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-07 11:33:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-07-07 11:33:28,356 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2020-07-07 11:33:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:28,357 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-07-07 11:33:28,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:33:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-07-07 11:33:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-07 11:33:28,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:28,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:28,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:33:28,360 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]=== [2020-07-07 11:33:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:28,361 INFO L82 PathProgramCache]: Analyzing trace with hash -594195383, now seen corresponding path program 1 times [2020-07-07 11:33:28,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:28,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578471912] [2020-07-07 11:33:28,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:28,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578471912] [2020-07-07 11:33:28,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:28,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:28,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315017246] [2020-07-07 11:33:28,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:28,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:28,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:28,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:28,455 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-07-07 11:33:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:28,718 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2020-07-07 11:33:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:28,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-07 11:33:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:28,721 INFO L225 Difference]: With dead ends: 153 [2020-07-07 11:33:28,721 INFO L226 Difference]: Without dead ends: 101 [2020-07-07 11:33:28,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:33:28,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-07 11:33:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2020-07-07 11:33:28,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-07 11:33:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2020-07-07 11:33:28,736 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2020-07-07 11:33:28,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:28,736 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2020-07-07 11:33:28,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2020-07-07 11:33:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-07 11:33:28,737 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:28,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:28,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:33:28,738 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]=== [2020-07-07 11:33:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash -597364152, now seen corresponding path program 1 times [2020-07-07 11:33:28,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:28,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171208803] [2020-07-07 11:33:28,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:28,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171208803] [2020-07-07 11:33:28,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:28,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:28,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913960704] [2020-07-07 11:33:28,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:28,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:28,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:28,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:28,805 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2020-07-07 11:33:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:28,932 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-07-07 11:33:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:28,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-07 11:33:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:28,934 INFO L225 Difference]: With dead ends: 75 [2020-07-07 11:33:28,934 INFO L226 Difference]: Without dead ends: 73 [2020-07-07 11:33:28,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-07 11:33:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2020-07-07 11:33:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-07 11:33:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2020-07-07 11:33:28,944 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2020-07-07 11:33:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:28,945 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2020-07-07 11:33:28,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2020-07-07 11:33:28,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-07 11:33:28,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:28,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:28,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:33:28,947 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]=== [2020-07-07 11:33:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:28,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1240184593, now seen corresponding path program 1 times [2020-07-07 11:33:28,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:28,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254110614] [2020-07-07 11:33:28,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:29,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254110614] [2020-07-07 11:33:29,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:29,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:29,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465784679] [2020-07-07 11:33:29,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:29,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:29,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:29,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:29,014 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 5 states. [2020-07-07 11:33:29,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:29,157 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2020-07-07 11:33:29,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:29,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-07 11:33:29,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:29,159 INFO L225 Difference]: With dead ends: 96 [2020-07-07 11:33:29,159 INFO L226 Difference]: Without dead ends: 94 [2020-07-07 11:33:29,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-07-07 11:33:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 54. [2020-07-07 11:33:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-07 11:33:29,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-07-07 11:33:29,168 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2020-07-07 11:33:29,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:29,168 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-07-07 11:33:29,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-07-07 11:33:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-07 11:33:29,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:29,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:29,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:33:29,170 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]=== [2020-07-07 11:33:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:29,171 INFO L82 PathProgramCache]: Analyzing trace with hash 208986383, now seen corresponding path program 1 times [2020-07-07 11:33:29,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:29,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942459424] [2020-07-07 11:33:29,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:29,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942459424] [2020-07-07 11:33:29,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:29,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:29,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099760738] [2020-07-07 11:33:29,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:29,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:29,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:29,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:29,237 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2020-07-07 11:33:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:29,451 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-07-07 11:33:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:29,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-07-07 11:33:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:29,453 INFO L225 Difference]: With dead ends: 95 [2020-07-07 11:33:29,453 INFO L226 Difference]: Without dead ends: 93 [2020-07-07 11:33:29,454 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 [2020-07-07 11:33:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-07-07 11:33:29,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 52. [2020-07-07 11:33:29,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-07 11:33:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-07-07 11:33:29,461 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2020-07-07 11:33:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:29,462 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-07-07 11:33:29,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:29,462 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-07-07 11:33:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-07 11:33:29,463 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:29,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:29,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:33:29,464 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]=== [2020-07-07 11:33:29,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:29,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1458792136, now seen corresponding path program 1 times [2020-07-07 11:33:29,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:29,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953770583] [2020-07-07 11:33:29,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:29,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953770583] [2020-07-07 11:33:29,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:29,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:29,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597092190] [2020-07-07 11:33:29,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:29,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:29,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:29,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:29,531 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2020-07-07 11:33:29,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:29,682 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-07 11:33:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:29,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-07 11:33:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:29,683 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:33:29,684 INFO L226 Difference]: Without dead ends: 67 [2020-07-07 11:33:29,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:33:29,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-07 11:33:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2020-07-07 11:33:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-07 11:33:29,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-07-07 11:33:29,698 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2020-07-07 11:33:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:29,699 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-07-07 11:33:29,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:29,699 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-07-07 11:33:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-07 11:33:29,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:29,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:29,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 11:33:29,708 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]=== [2020-07-07 11:33:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:29,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2111353611, now seen corresponding path program 1 times [2020-07-07 11:33:29,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:29,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242642344] [2020-07-07 11:33:29,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:29,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242642344] [2020-07-07 11:33:29,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:29,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:29,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28009625] [2020-07-07 11:33:29,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:29,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:29,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:29,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:29,790 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 5 states. [2020-07-07 11:33:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:29,928 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-07-07 11:33:29,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:29,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-07-07 11:33:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:29,930 INFO L225 Difference]: With dead ends: 91 [2020-07-07 11:33:29,930 INFO L226 Difference]: Without dead ends: 89 [2020-07-07 11:33:29,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-07 11:33:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 48. [2020-07-07 11:33:29,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-07 11:33:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-07-07 11:33:29,937 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2020-07-07 11:33:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:29,938 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-07-07 11:33:29,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-07-07 11:33:29,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-07 11:33:29,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:29,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:29,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 11:33:29,939 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]=== [2020-07-07 11:33:29,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:29,940 INFO L82 PathProgramCache]: Analyzing trace with hash -2022080917, now seen corresponding path program 1 times [2020-07-07 11:33:29,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:29,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319244236] [2020-07-07 11:33:29,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:29,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319244236] [2020-07-07 11:33:29,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:29,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:29,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976468878] [2020-07-07 11:33:29,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:29,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:29,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:29,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:29,998 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 6 states. [2020-07-07 11:33:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,218 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2020-07-07 11:33:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:30,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-07-07 11:33:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:30,220 INFO L225 Difference]: With dead ends: 73 [2020-07-07 11:33:30,220 INFO L226 Difference]: Without dead ends: 71 [2020-07-07 11:33:30,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:33:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-07-07 11:33:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2020-07-07 11:33:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-07 11:33:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-07-07 11:33:30,227 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2020-07-07 11:33:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:30,227 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-07-07 11:33:30,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-07 11:33:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-07 11:33:30,228 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:30,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:30,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 11:33:30,229 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]=== [2020-07-07 11:33:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:30,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1740004142, now seen corresponding path program 1 times [2020-07-07 11:33:30,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:30,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183070436] [2020-07-07 11:33:30,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:30,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183070436] [2020-07-07 11:33:30,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:30,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:30,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723571606] [2020-07-07 11:33:30,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:30,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:30,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:30,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:30,285 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2020-07-07 11:33:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,422 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-07-07 11:33:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:30,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-07 11:33:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:30,424 INFO L225 Difference]: With dead ends: 61 [2020-07-07 11:33:30,424 INFO L226 Difference]: Without dead ends: 59 [2020-07-07 11:33:30,425 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 [2020-07-07 11:33:30,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-07 11:33:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2020-07-07 11:33:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-07 11:33:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-07-07 11:33:30,430 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2020-07-07 11:33:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:30,431 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-07-07 11:33:30,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-07-07 11:33:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-07 11:33:30,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:30,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:30,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 11:33:30,432 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]=== [2020-07-07 11:33:30,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:30,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1894443311, now seen corresponding path program 1 times [2020-07-07 11:33:30,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:30,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205939892] [2020-07-07 11:33:30,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:30,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205939892] [2020-07-07 11:33:30,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:30,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:30,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653135889] [2020-07-07 11:33:30,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:30,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:30,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:30,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:30,492 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-07-07 11:33:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,578 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-07-07 11:33:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:30,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-07-07 11:33:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:30,579 INFO L225 Difference]: With dead ends: 61 [2020-07-07 11:33:30,580 INFO L226 Difference]: Without dead ends: 59 [2020-07-07 11:33:30,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-07 11:33:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2020-07-07 11:33:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-07 11:33:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-07-07 11:33:30,586 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2020-07-07 11:33:30,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:30,586 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-07-07 11:33:30,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-07-07 11:33:30,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:33:30,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:30,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:30,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 11:33:30,588 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]=== [2020-07-07 11:33:30,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:30,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1401802644, now seen corresponding path program 1 times [2020-07-07 11:33:30,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:30,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559531959] [2020-07-07 11:33:30,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:30,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559531959] [2020-07-07 11:33:30,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:30,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:30,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728810840] [2020-07-07 11:33:30,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:30,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:30,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:30,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:30,631 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2020-07-07 11:33:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,762 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-07 11:33:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:30,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-07-07 11:33:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:30,763 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:33:30,763 INFO L226 Difference]: Without dead ends: 67 [2020-07-07 11:33:30,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:33:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-07 11:33:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2020-07-07 11:33:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-07 11:33:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-07-07 11:33:30,769 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2020-07-07 11:33:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:30,770 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-07-07 11:33:30,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-07-07 11:33:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-07 11:33:30,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:30,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:30,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 11:33:30,771 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]=== [2020-07-07 11:33:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash 506212151, now seen corresponding path program 1 times [2020-07-07 11:33:30,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:30,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707657395] [2020-07-07 11:33:30,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:30,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707657395] [2020-07-07 11:33:30,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:30,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:30,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045131962] [2020-07-07 11:33:30,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:30,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:30,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:30,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:30,855 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2020-07-07 11:33:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,998 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2020-07-07 11:33:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:30,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-07-07 11:33:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,000 INFO L225 Difference]: With dead ends: 74 [2020-07-07 11:33:31,000 INFO L226 Difference]: Without dead ends: 72 [2020-07-07 11:33:31,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:33:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-07 11:33:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2020-07-07 11:33:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-07 11:33:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-07-07 11:33:31,010 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2020-07-07 11:33:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,011 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-07-07 11:33:31,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-07-07 11:33:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 11:33:31,011 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:31,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 11:33:31,012 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]=== [2020-07-07 11:33:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1487289350, now seen corresponding path program 1 times [2020-07-07 11:33:31,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610699518] [2020-07-07 11:33:31,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610699518] [2020-07-07 11:33:31,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:33:31,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289513090] [2020-07-07 11:33:31,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:31,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:31,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:31,108 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2020-07-07 11:33:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,330 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2020-07-07 11:33:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:33:31,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-07-07 11:33:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,334 INFO L225 Difference]: With dead ends: 62 [2020-07-07 11:33:31,334 INFO L226 Difference]: Without dead ends: 60 [2020-07-07 11:33:31,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:33:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-07-07 11:33:31,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 36. [2020-07-07 11:33:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-07 11:33:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-07-07 11:33:31,341 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2020-07-07 11:33:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,344 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-07-07 11:33:31,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-07-07 11:33:31,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-07 11:33:31,349 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:31,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 11:33:31,350 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]=== [2020-07-07 11:33:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1138673565, now seen corresponding path program 1 times [2020-07-07 11:33:31,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372919404] [2020-07-07 11:33:31,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372919404] [2020-07-07 11:33:31,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:31,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232197148] [2020-07-07 11:33:31,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:31,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:31,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:31,446 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2020-07-07 11:33:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,632 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2020-07-07 11:33:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:31,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-07-07 11:33:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,633 INFO L225 Difference]: With dead ends: 87 [2020-07-07 11:33:31,633 INFO L226 Difference]: Without dead ends: 85 [2020-07-07 11:33:31,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:33:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-07 11:33:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 34. [2020-07-07 11:33:31,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-07 11:33:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-07-07 11:33:31,642 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2020-07-07 11:33:31,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,643 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-07-07 11:33:31,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:31,643 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-07-07 11:33:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 11:33:31,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:31,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 11:33:31,646 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]=== [2020-07-07 11:33:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash 939145312, now seen corresponding path program 1 times [2020-07-07 11:33:31,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506612243] [2020-07-07 11:33:31,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506612243] [2020-07-07 11:33:31,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:33:31,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493487293] [2020-07-07 11:33:31,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:31,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:31,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:31,742 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2020-07-07 11:33:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,933 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2020-07-07 11:33:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:33:31,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-07-07 11:33:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,935 INFO L225 Difference]: With dead ends: 60 [2020-07-07 11:33:31,935 INFO L226 Difference]: Without dead ends: 58 [2020-07-07 11:33:31,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:33:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-07 11:33:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2020-07-07 11:33:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-07 11:33:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-07-07 11:33:31,941 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2020-07-07 11:33:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,941 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-07-07 11:33:31,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-07-07 11:33:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:33:31,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:31,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 11:33:31,943 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]=== [2020-07-07 11:33:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash -951263229, now seen corresponding path program 1 times [2020-07-07 11:33:31,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083721844] [2020-07-07 11:33:31,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083721844] [2020-07-07 11:33:31,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:33:31,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953975691] [2020-07-07 11:33:31,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:31,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:31,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:31,996 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-07-07 11:33:32,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:32,298 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2020-07-07 11:33:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:33:32,299 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-07-07 11:33:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:32,299 INFO L225 Difference]: With dead ends: 125 [2020-07-07 11:33:32,299 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:33:32,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:33:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:33:32,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:33:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:33:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:33:32,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-07-07 11:33:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:32,302 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:33:32,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:32,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:33:32,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:33:32,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 11:33:32,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:33:32,589 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 92 [2020-07-07 11:33:32,804 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 72 [2020-07-07 11:33:33,046 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 48 [2020-07-07 11:33:33,268 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 39 [2020-07-07 11:33:33,423 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 23 [2020-07-07 11:33:33,507 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:33:33,508 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_334~0 |old(~__return_334~0)|)) [2020-07-07 11:33:33,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:33:33,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:33:33,509 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:33:33,509 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:33:33,509 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:33:33,509 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:33,509 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point L225(lines 225 267) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 311) no Hoare annotation was computed. [2020-07-07 11:33:33,510 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point L201(lines 201 271) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point L36(lines 36 292) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-07 11:33:33,511 INFO L268 CegarLoopResult]: For program point L243(line 243) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 243) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L268 CegarLoopResult]: For program point L227(line 227) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L268 CegarLoopResult]: For program point L161(lines 161 277) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-07-07 11:33:33,512 INFO L264 CegarLoopResult]: At program point L302(lines 23 310) the Hoare annotation is: (and (= |old(~__return_334~0)| ~__return_334~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (<= 0 main_~main__i~0)) [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 311) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 227) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point L137(lines 137 281) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point L96(lines 96 123) no Hoare annotation was computed. [2020-07-07 11:33:33,513 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 311) the Hoare annotation is: (= |old(~__return_334~0)| ~__return_334~0) [2020-07-07 11:33:33,513 INFO L268 CegarLoopResult]: For program point L253(lines 253 263) no Hoare annotation was computed. [2020-07-07 11:33:33,514 INFO L268 CegarLoopResult]: For program point L55(lines 55 284) no Hoare annotation was computed. [2020-07-07 11:33:33,514 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 163) no Hoare annotation was computed. [2020-07-07 11:33:33,514 INFO L268 CegarLoopResult]: For program point L72(lines 72 127) no Hoare annotation was computed. [2020-07-07 11:33:33,515 INFO L264 CegarLoopResult]: At program point L262(lines 29 304) the Hoare annotation is: (let ((.cse0 (= |old(~__return_334~0)| ~__return_334~0)) (.cse1 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0))) (or (and (<= (+ main_~main__i~0 1) main_~main__len~0) .cse0 (<= 0 main_~main__j~0) .cse1 (<= 0 main_~main__i~0)) (and .cse0 (let ((.cse4 (<= (+ main_~main__j~0 4) main_~main__bufsize~0))) (let ((.cse2 (let ((.cse5 (<= 1 main_~main__i~0))) (or (and .cse1 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse5) (and .cse1 .cse4 .cse5)))) (.cse3 (<= 1 main_~main__j~0))) (or (and .cse2 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse3) (and .cse2 .cse4 .cse3))))))) [2020-07-07 11:33:33,516 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-07 11:33:33,516 INFO L268 CegarLoopResult]: For program point L64(lines 64 283) no Hoare annotation was computed. [2020-07-07 11:33:33,516 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-07-07 11:33:33,516 INFO L268 CegarLoopResult]: For program point L213(lines 213 269) no Hoare annotation was computed. [2020-07-07 11:33:33,517 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-07-07 11:33:33,517 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-07 11:33:33,518 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-07-07 11:33:33,518 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2020-07-07 11:33:33,518 INFO L268 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-07-07 11:33:33,518 INFO L268 CegarLoopResult]: For program point L189(lines 189 273) no Hoare annotation was computed. [2020-07-07 11:33:33,518 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-07-07 11:33:33,519 INFO L268 CegarLoopResult]: For program point L173(lines 173 275) no Hoare annotation was computed. [2020-07-07 11:33:33,519 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-07-07 11:33:33,519 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2020-07-07 11:33:33,519 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2020-07-07 11:33:33,519 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-07 11:33:33,520 INFO L268 CegarLoopResult]: For program point L149(lines 149 279) no Hoare annotation was computed. [2020-07-07 11:33:33,520 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point L108(lines 108 121) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point L34(lines 34 298) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point L84(lines 84 125) no Hoare annotation was computed. [2020-07-07 11:33:33,521 INFO L268 CegarLoopResult]: For program point L18(lines 18 310) no Hoare annotation was computed. [2020-07-07 11:33:33,522 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 215) no Hoare annotation was computed. [2020-07-07 11:33:33,522 INFO L268 CegarLoopResult]: For program point L241(lines 241 265) no Hoare annotation was computed. [2020-07-07 11:33:33,522 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:33:33,522 INFO L268 CegarLoopResult]: For program point L43(lines 43 286) no Hoare annotation was computed. [2020-07-07 11:33:33,522 INFO L264 CegarLoopResult]: At program point L291(lines 36 292) the Hoare annotation is: (and (<= (+ main_~main__i~0 1) main_~main__len~0) (= |old(~__return_334~0)| ~__return_334~0) (<= 0 main_~main__j~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (<= 0 main_~main__i~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0)) [2020-07-07 11:33:33,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:33:33 BoogieIcfgContainer [2020-07-07 11:33:33,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:33:33,573 INFO L168 Benchmark]: Toolchain (without parser) took 6601.18 ms. Allocated memory was 135.8 MB in the beginning and 296.7 MB in the end (delta: 161.0 MB). Free memory was 100.7 MB in the beginning and 172.8 MB in the end (delta: -72.1 MB). Peak memory consumption was 173.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,576 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.23 ms. Allocated memory is still 135.8 MB. Free memory was 100.3 MB in the beginning and 88.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,580 INFO L168 Benchmark]: Boogie Preprocessor took 119.10 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 88.3 MB in the beginning and 177.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,581 INFO L168 Benchmark]: RCFGBuilder took 413.26 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 154.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,582 INFO L168 Benchmark]: TraceAbstraction took 5763.13 ms. Allocated memory was 199.8 MB in the beginning and 296.7 MB in the end (delta: 97.0 MB). Free memory was 154.7 MB in the beginning and 172.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:33,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 300.23 ms. Allocated memory is still 135.8 MB. Free memory was 100.3 MB in the beginning and 88.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.10 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 88.3 MB in the beginning and 177.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.26 ms. Allocated memory is still 199.8 MB. Free memory was 177.6 MB in the beginning and 154.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5763.13 ms. Allocated memory was 199.8 MB in the beginning and 296.7 MB in the end (delta: 97.0 MB). Free memory was 154.7 MB in the beginning and 172.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 163.4 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: ((((main__i + 1 <= main__len && \old(__return_334) == __return_334) && 0 <= main__j) && main__limit + 4 <= main__bufsize) && 0 <= main__i) || (\old(__return_334) == __return_334 && ((((((main__limit + 4 <= main__bufsize && !(__VERIFIER_assert__cond == 0)) && 1 <= main__i) || ((main__limit + 4 <= main__bufsize && main__j + 4 <= main__bufsize) && 1 <= main__i)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__j) || (((((main__limit + 4 <= main__bufsize && !(__VERIFIER_assert__cond == 0)) && 1 <= main__i) || ((main__limit + 4 <= main__bufsize && main__j + 4 <= main__bufsize) && 1 <= main__i)) && main__j + 4 <= main__bufsize) && 1 <= main__j))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((main__i + 1 <= main__len && \old(__return_334) == __return_334) && 0 <= main__j) && main__limit + 4 <= main__bufsize) && 0 <= main__i) && main__j + 5 <= main__bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (\old(__return_334) == __return_334 && main__limit + 4 <= main__bufsize) && 0 <= main__i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 935 SDtfs, 1910 SDslu, 227 SDs, 0 SdLazy, 1420 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 435 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 148 HoareAnnotationTreeSize, 7 FomulaSimplifications, 909827071 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 37836 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 15056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...