/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:09:37,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:09:37,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:09:37,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:09:37,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:09:37,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:09:37,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:09:37,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:09:37,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:09:37,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:09:37,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:09:37,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:09:37,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:09:37,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:09:37,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:09:37,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:09:37,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:09:37,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:09:37,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:09:37,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:09:37,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:09:37,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:09:37,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:09:37,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:09:37,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:09:37,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:09:37,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:09:37,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:09:37,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:09:37,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:09:37,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:09:37,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:09:37,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:09:37,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:09:37,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:09:37,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:09:37,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:09:37,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:09:37,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:09:37,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:09:37,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:09:37,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:09:37,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:09:37,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:09:37,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:09:37,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:09:37,671 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:09:37,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:09:37,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:09:37,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:09:37,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:09:37,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:09:37,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:09:37,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:09:37,674 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:09:37,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:09:37,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:09:37,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:09:37,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:09:37,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:09:37,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:09:37,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:09:37,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:09:37,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:09:37,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:09:37,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:09:37,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:09:37,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:09:38,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:09:38,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:09:38,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:09:38,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:09:38,090 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:09:38,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2020-12-22 06:09:38,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d69aaf761/062761e2bdee4719af1f8f37a49cf4be/FLAGde2a65578 [2020-12-22 06:09:38,950 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:09:38,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c [2020-12-22 06:09:38,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d69aaf761/062761e2bdee4719af1f8f37a49cf4be/FLAGde2a65578 [2020-12-22 06:09:39,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d69aaf761/062761e2bdee4719af1f8f37a49cf4be [2020-12-22 06:09:39,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:09:39,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:09:39,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:39,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:09:39,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:09:39,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:39" (1/1) ... [2020-12-22 06:09:39,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b607aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:39, skipping insertion in model container [2020-12-22 06:09:39,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:39" (1/1) ... [2020-12-22 06:09:39,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:09:39,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:09:39,719 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c[32074,32087] [2020-12-22 06:09:39,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:39,924 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:09:39,989 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product18.cil.c[32074,32087] [2020-12-22 06:09:40,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:40,161 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:09:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40 WrapperNode [2020-12-22 06:09:40,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:40,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:40,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:09:40,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:09:40,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:40,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:40,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:40,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:09:40,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:09:40,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:09:40,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:40,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:41,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:41,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:41,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:41,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:41,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (1/1) ... [2020-12-22 06:09:42,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:09:42,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:09:42,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:09:42,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:09:42,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (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 [2020-12-22 06:09:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:09:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:09:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:09:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:10:03,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:10:03,648 INFO L299 CfgBuilder]: Removed 2477 assume(true) statements. [2020-12-22 06:10:03,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:10:03 BoogieIcfgContainer [2020-12-22 06:10:03,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:10:03,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:10:03,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:10:03,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:10:03,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:09:39" (1/3) ... [2020-12-22 06:10:03,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae520a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:10:03, skipping insertion in model container [2020-12-22 06:10:03,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:40" (2/3) ... [2020-12-22 06:10:03,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ae520a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:10:03, skipping insertion in model container [2020-12-22 06:10:03,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:10:03" (3/3) ... [2020-12-22 06:10:03,671 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2020-12-22 06:10:03,678 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:10:03,687 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 06:10:03,704 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 06:10:03,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:10:03,773 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:10:03,773 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:10:03,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:10:03,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:10:03,774 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:10:03,774 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:10:03,774 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:10:04,078 INFO L276 IsEmpty]: Start isEmpty. Operand 11523 states. [2020-12-22 06:10:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:10:04,094 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:04,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:04,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1060902546, now seen corresponding path program 1 times [2020-12-22 06:10:04,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:04,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512799512] [2020-12-22 06:10:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:04,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512799512] [2020-12-22 06:10:04,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:04,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:04,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051602067] [2020-12-22 06:10:04,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:04,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:04,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:04,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:04,602 INFO L87 Difference]: Start difference. First operand 11523 states. Second operand 4 states. [2020-12-22 06:10:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:06,483 INFO L93 Difference]: Finished difference Result 45917 states and 87029 transitions. [2020-12-22 06:10:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:06,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-22 06:10:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:06,730 INFO L225 Difference]: With dead ends: 45917 [2020-12-22 06:10:06,730 INFO L226 Difference]: Without dead ends: 34407 [2020-12-22 06:10:06,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34407 states. [2020-12-22 06:10:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34407 to 11531. [2020-12-22 06:10:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11531 states. [2020-12-22 06:10:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 21833 transitions. [2020-12-22 06:10:07,803 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 21833 transitions. Word has length 30 [2020-12-22 06:10:07,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:07,804 INFO L481 AbstractCegarLoop]: Abstraction has 11531 states and 21833 transitions. [2020-12-22 06:10:07,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 21833 transitions. [2020-12-22 06:10:07,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:10:07,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:07,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:07,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:10:07,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:07,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1398461997, now seen corresponding path program 1 times [2020-12-22 06:10:07,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:07,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067824101] [2020-12-22 06:10:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:07,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067824101] [2020-12-22 06:10:07,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:07,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:07,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968040197] [2020-12-22 06:10:07,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:07,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:07,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:07,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:07,981 INFO L87 Difference]: Start difference. First operand 11531 states and 21833 transitions. Second operand 3 states. [2020-12-22 06:10:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:08,566 INFO L93 Difference]: Finished difference Result 22978 states and 43513 transitions. [2020-12-22 06:10:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:08,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 06:10:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:08,607 INFO L225 Difference]: With dead ends: 22978 [2020-12-22 06:10:08,607 INFO L226 Difference]: Without dead ends: 11461 [2020-12-22 06:10:08,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-12-22 06:10:09,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 11461. [2020-12-22 06:10:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11461 states. [2020-12-22 06:10:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 21693 transitions. [2020-12-22 06:10:09,062 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 21693 transitions. Word has length 31 [2020-12-22 06:10:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:09,063 INFO L481 AbstractCegarLoop]: Abstraction has 11461 states and 21693 transitions. [2020-12-22 06:10:09,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 21693 transitions. [2020-12-22 06:10:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:10:09,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:09,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:09,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:10:09,066 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1509226250, now seen corresponding path program 1 times [2020-12-22 06:10:09,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:09,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964783914] [2020-12-22 06:10:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:09,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964783914] [2020-12-22 06:10:09,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:09,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:09,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381413250] [2020-12-22 06:10:09,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:09,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:09,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:09,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:09,210 INFO L87 Difference]: Start difference. First operand 11461 states and 21693 transitions. Second operand 4 states. [2020-12-22 06:10:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:09,991 INFO L93 Difference]: Finished difference Result 22896 states and 43349 transitions. [2020-12-22 06:10:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:09,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-12-22 06:10:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:10,033 INFO L225 Difference]: With dead ends: 22896 [2020-12-22 06:10:10,034 INFO L226 Difference]: Without dead ends: 11461 [2020-12-22 06:10:10,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-12-22 06:10:10,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 11461. [2020-12-22 06:10:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11461 states. [2020-12-22 06:10:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 21691 transitions. [2020-12-22 06:10:10,337 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 21691 transitions. Word has length 34 [2020-12-22 06:10:10,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:10,341 INFO L481 AbstractCegarLoop]: Abstraction has 11461 states and 21691 transitions. [2020-12-22 06:10:10,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 21691 transitions. [2020-12-22 06:10:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 06:10:10,343 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:10,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:10,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:10:10,343 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:10,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:10,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1183294011, now seen corresponding path program 1 times [2020-12-22 06:10:10,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:10,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199522055] [2020-12-22 06:10:10,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:10,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199522055] [2020-12-22 06:10:10,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:10,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:10,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259518754] [2020-12-22 06:10:10,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:10,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:10,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:10,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:10,451 INFO L87 Difference]: Start difference. First operand 11461 states and 21691 transitions. Second operand 4 states. [2020-12-22 06:10:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:11,034 INFO L93 Difference]: Finished difference Result 22896 states and 43346 transitions. [2020-12-22 06:10:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:11,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-22 06:10:11,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:11,068 INFO L225 Difference]: With dead ends: 22896 [2020-12-22 06:10:11,068 INFO L226 Difference]: Without dead ends: 11461 [2020-12-22 06:10:11,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-12-22 06:10:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 11461. [2020-12-22 06:10:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11461 states. [2020-12-22 06:10:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 21689 transitions. [2020-12-22 06:10:11,523 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 21689 transitions. Word has length 35 [2020-12-22 06:10:11,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:11,523 INFO L481 AbstractCegarLoop]: Abstraction has 11461 states and 21689 transitions. [2020-12-22 06:10:11,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:11,523 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 21689 transitions. [2020-12-22 06:10:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 06:10:11,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:11,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:11,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:10:11,525 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:11,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash 557529349, now seen corresponding path program 1 times [2020-12-22 06:10:11,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:11,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092664932] [2020-12-22 06:10:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:11,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092664932] [2020-12-22 06:10:11,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:11,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:11,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854863322] [2020-12-22 06:10:11,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:11,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:11,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:11,622 INFO L87 Difference]: Start difference. First operand 11461 states and 21689 transitions. Second operand 4 states. [2020-12-22 06:10:12,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:12,233 INFO L93 Difference]: Finished difference Result 22896 states and 43343 transitions. [2020-12-22 06:10:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:12,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-12-22 06:10:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:12,268 INFO L225 Difference]: With dead ends: 22896 [2020-12-22 06:10:12,269 INFO L226 Difference]: Without dead ends: 11461 [2020-12-22 06:10:12,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:12,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-12-22 06:10:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 11461. [2020-12-22 06:10:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11461 states. [2020-12-22 06:10:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 21687 transitions. [2020-12-22 06:10:12,740 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 21687 transitions. Word has length 36 [2020-12-22 06:10:12,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:12,741 INFO L481 AbstractCegarLoop]: Abstraction has 11461 states and 21687 transitions. [2020-12-22 06:10:12,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 21687 transitions. [2020-12-22 06:10:12,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 06:10:12,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:12,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:12,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:10:12,743 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:12,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2001915808, now seen corresponding path program 1 times [2020-12-22 06:10:12,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:12,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287490149] [2020-12-22 06:10:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:12,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287490149] [2020-12-22 06:10:12,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:12,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:12,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455404601] [2020-12-22 06:10:12,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:12,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:12,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:12,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:12,816 INFO L87 Difference]: Start difference. First operand 11461 states and 21687 transitions. Second operand 4 states. [2020-12-22 06:10:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:13,381 INFO L93 Difference]: Finished difference Result 22896 states and 43340 transitions. [2020-12-22 06:10:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:13,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-12-22 06:10:13,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:13,427 INFO L225 Difference]: With dead ends: 22896 [2020-12-22 06:10:13,428 INFO L226 Difference]: Without dead ends: 11461 [2020-12-22 06:10:13,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11461 states. [2020-12-22 06:10:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11461 to 11461. [2020-12-22 06:10:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11461 states. [2020-12-22 06:10:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 21685 transitions. [2020-12-22 06:10:13,952 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 21685 transitions. Word has length 37 [2020-12-22 06:10:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:13,952 INFO L481 AbstractCegarLoop]: Abstraction has 11461 states and 21685 transitions. [2020-12-22 06:10:13,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 21685 transitions. [2020-12-22 06:10:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:10:13,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:13,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:13,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:10:13,954 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:13,960 INFO L82 PathProgramCache]: Analyzing trace with hash -430731520, now seen corresponding path program 1 times [2020-12-22 06:10:13,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:13,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014949989] [2020-12-22 06:10:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:14,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014949989] [2020-12-22 06:10:14,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:14,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:14,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077402851] [2020-12-22 06:10:14,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:14,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:14,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:14,085 INFO L87 Difference]: Start difference. First operand 11461 states and 21685 transitions. Second operand 5 states. [2020-12-22 06:10:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:16,248 INFO L93 Difference]: Finished difference Result 32236 states and 60877 transitions. [2020-12-22 06:10:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:10:16,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 06:10:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:16,296 INFO L225 Difference]: With dead ends: 32236 [2020-12-22 06:10:16,297 INFO L226 Difference]: Without dead ends: 20845 [2020-12-22 06:10:16,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:10:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20845 states. [2020-12-22 06:10:17,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20845 to 20332. [2020-12-22 06:10:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20332 states. [2020-12-22 06:10:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20332 states to 20332 states and 38474 transitions. [2020-12-22 06:10:17,162 INFO L78 Accepts]: Start accepts. Automaton has 20332 states and 38474 transitions. Word has length 38 [2020-12-22 06:10:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:17,162 INFO L481 AbstractCegarLoop]: Abstraction has 20332 states and 38474 transitions. [2020-12-22 06:10:17,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 20332 states and 38474 transitions. [2020-12-22 06:10:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 06:10:17,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:17,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:17,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:10:17,164 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:17,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:17,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1123445477, now seen corresponding path program 1 times [2020-12-22 06:10:17,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:17,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572972950] [2020-12-22 06:10:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:17,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:17,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572972950] [2020-12-22 06:10:17,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:17,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:17,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586674594] [2020-12-22 06:10:17,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:17,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:17,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:17,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:17,255 INFO L87 Difference]: Start difference. First operand 20332 states and 38474 transitions. Second operand 5 states. [2020-12-22 06:10:24,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:24,079 INFO L93 Difference]: Finished difference Result 171533 states and 324775 transitions. [2020-12-22 06:10:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:10:24,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-12-22 06:10:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:24,491 INFO L225 Difference]: With dead ends: 171533 [2020-12-22 06:10:24,491 INFO L226 Difference]: Without dead ends: 151271 [2020-12-22 06:10:24,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:10:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151271 states. [2020-12-22 06:10:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151271 to 38383. [2020-12-22 06:10:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38383 states. [2020-12-22 06:10:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38383 states to 38383 states and 72596 transitions. [2020-12-22 06:10:27,740 INFO L78 Accepts]: Start accepts. Automaton has 38383 states and 72596 transitions. Word has length 38 [2020-12-22 06:10:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:27,741 INFO L481 AbstractCegarLoop]: Abstraction has 38383 states and 72596 transitions. [2020-12-22 06:10:27,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 38383 states and 72596 transitions. [2020-12-22 06:10:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:10:27,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:27,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:27,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:10:27,743 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash -447043433, now seen corresponding path program 1 times [2020-12-22 06:10:27,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:27,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689737353] [2020-12-22 06:10:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:27,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689737353] [2020-12-22 06:10:27,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:27,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:27,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521165968] [2020-12-22 06:10:27,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:27,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:27,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:27,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:27,806 INFO L87 Difference]: Start difference. First operand 38383 states and 72596 transitions. Second operand 3 states. [2020-12-22 06:10:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:30,421 INFO L93 Difference]: Finished difference Result 114149 states and 215912 transitions. [2020-12-22 06:10:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:30,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2020-12-22 06:10:30,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:30,588 INFO L225 Difference]: With dead ends: 114149 [2020-12-22 06:10:30,588 INFO L226 Difference]: Without dead ends: 75798 [2020-12-22 06:10:30,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75798 states. [2020-12-22 06:10:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75798 to 38259. [2020-12-22 06:10:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38259 states. [2020-12-22 06:10:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38259 states to 38259 states and 72348 transitions. [2020-12-22 06:10:32,464 INFO L78 Accepts]: Start accepts. Automaton has 38259 states and 72348 transitions. Word has length 39 [2020-12-22 06:10:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:32,464 INFO L481 AbstractCegarLoop]: Abstraction has 38259 states and 72348 transitions. [2020-12-22 06:10:32,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 38259 states and 72348 transitions. [2020-12-22 06:10:32,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:10:32,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:32,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:32,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:10:32,465 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:32,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:32,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1605600308, now seen corresponding path program 1 times [2020-12-22 06:10:32,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:32,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686058971] [2020-12-22 06:10:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:32,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686058971] [2020-12-22 06:10:32,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:32,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:32,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650010030] [2020-12-22 06:10:32,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:32,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:32,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:32,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:32,620 INFO L87 Difference]: Start difference. First operand 38259 states and 72348 transitions. Second operand 5 states. [2020-12-22 06:10:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:37,713 INFO L93 Difference]: Finished difference Result 91418 states and 172707 transitions. [2020-12-22 06:10:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:10:37,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-12-22 06:10:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:37,803 INFO L225 Difference]: With dead ends: 91418 [2020-12-22 06:10:37,803 INFO L226 Difference]: Without dead ends: 53193 [2020-12-22 06:10:37,837 INFO L677 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 [2020-12-22 06:10:37,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53193 states. [2020-12-22 06:10:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53193 to 52733. [2020-12-22 06:10:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52733 states. [2020-12-22 06:10:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52733 states to 52733 states and 98902 transitions. [2020-12-22 06:10:39,401 INFO L78 Accepts]: Start accepts. Automaton has 52733 states and 98902 transitions. Word has length 39 [2020-12-22 06:10:39,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:39,409 INFO L481 AbstractCegarLoop]: Abstraction has 52733 states and 98902 transitions. [2020-12-22 06:10:39,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 52733 states and 98902 transitions. [2020-12-22 06:10:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 06:10:39,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:39,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:39,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:10:39,410 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:39,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1617257651, now seen corresponding path program 1 times [2020-12-22 06:10:39,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:39,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252444727] [2020-12-22 06:10:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:39,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252444727] [2020-12-22 06:10:39,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:39,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:10:39,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216178264] [2020-12-22 06:10:39,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:10:39,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:39,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:10:39,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:10:39,553 INFO L87 Difference]: Start difference. First operand 52733 states and 98902 transitions. Second operand 6 states. [2020-12-22 06:10:46,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:46,470 INFO L93 Difference]: Finished difference Result 158521 states and 296762 transitions. [2020-12-22 06:10:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 06:10:46,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-12-22 06:10:46,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:46,687 INFO L225 Difference]: With dead ends: 158521 [2020-12-22 06:10:46,687 INFO L226 Difference]: Without dead ends: 105828 [2020-12-22 06:10:46,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-12-22 06:10:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105828 states. [2020-12-22 06:10:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105828 to 52733. [2020-12-22 06:10:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52733 states. [2020-12-22 06:10:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52733 states to 52733 states and 98791 transitions. [2020-12-22 06:10:48,947 INFO L78 Accepts]: Start accepts. Automaton has 52733 states and 98791 transitions. Word has length 42 [2020-12-22 06:10:48,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:48,947 INFO L481 AbstractCegarLoop]: Abstraction has 52733 states and 98791 transitions. [2020-12-22 06:10:48,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:10:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 52733 states and 98791 transitions. [2020-12-22 06:10:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 06:10:48,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:48,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:48,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:10:48,948 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash -458684488, now seen corresponding path program 1 times [2020-12-22 06:10:48,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:48,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831450638] [2020-12-22 06:10:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:49,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831450638] [2020-12-22 06:10:49,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:49,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:49,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050999204] [2020-12-22 06:10:49,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:49,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:49,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:49,030 INFO L87 Difference]: Start difference. First operand 52733 states and 98791 transitions. Second operand 5 states. [2020-12-22 06:11:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:01,662 INFO L93 Difference]: Finished difference Result 453821 states and 851677 transitions. [2020-12-22 06:11:01,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:11:01,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-12-22 06:11:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:02,613 INFO L225 Difference]: With dead ends: 453821 [2020-12-22 06:11:02,613 INFO L226 Difference]: Without dead ends: 401147 [2020-12-22 06:11:02,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:11:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401147 states. [2020-12-22 06:11:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401147 to 101769. [2020-12-22 06:11:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101769 states. [2020-12-22 06:11:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101769 states to 101769 states and 190560 transitions. [2020-12-22 06:11:08,747 INFO L78 Accepts]: Start accepts. Automaton has 101769 states and 190560 transitions. Word has length 43 [2020-12-22 06:11:08,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:08,748 INFO L481 AbstractCegarLoop]: Abstraction has 101769 states and 190560 transitions. [2020-12-22 06:11:08,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:08,748 INFO L276 IsEmpty]: Start isEmpty. Operand 101769 states and 190560 transitions. [2020-12-22 06:11:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 06:11:08,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:08,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:08,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:11:08,749 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:08,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:08,750 INFO L82 PathProgramCache]: Analyzing trace with hash 257032238, now seen corresponding path program 1 times [2020-12-22 06:11:08,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:08,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832277311] [2020-12-22 06:11:08,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:08,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832277311] [2020-12-22 06:11:08,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:08,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:08,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920017618] [2020-12-22 06:11:08,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:08,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:08,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:08,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:08,803 INFO L87 Difference]: Start difference. First operand 101769 states and 190560 transitions. Second operand 3 states. [2020-12-22 06:11:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:15,058 INFO L93 Difference]: Finished difference Result 303120 states and 567940 transitions. [2020-12-22 06:11:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:15,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-12-22 06:11:15,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:15,531 INFO L225 Difference]: With dead ends: 303120 [2020-12-22 06:11:15,532 INFO L226 Difference]: Without dead ends: 201388 [2020-12-22 06:11:15,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201388 states. [2020-12-22 06:11:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201388 to 101515. [2020-12-22 06:11:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101515 states. [2020-12-22 06:11:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101515 states to 101515 states and 190059 transitions. [2020-12-22 06:11:19,772 INFO L78 Accepts]: Start accepts. Automaton has 101515 states and 190059 transitions. Word has length 44 [2020-12-22 06:11:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:19,772 INFO L481 AbstractCegarLoop]: Abstraction has 101515 states and 190059 transitions. [2020-12-22 06:11:19,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 101515 states and 190059 transitions. [2020-12-22 06:11:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:11:19,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:19,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:19,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:11:19,773 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:19,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:19,774 INFO L82 PathProgramCache]: Analyzing trace with hash 228658356, now seen corresponding path program 1 times [2020-12-22 06:11:19,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:19,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716789255] [2020-12-22 06:11:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:19,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716789255] [2020-12-22 06:11:19,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:19,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:19,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316468689] [2020-12-22 06:11:19,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:19,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:19,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:19,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:19,848 INFO L87 Difference]: Start difference. First operand 101515 states and 190059 transitions. Second operand 3 states. [2020-12-22 06:11:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:26,122 INFO L93 Difference]: Finished difference Result 302619 states and 566967 transitions. [2020-12-22 06:11:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:26,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 06:11:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:26,542 INFO L225 Difference]: With dead ends: 302619 [2020-12-22 06:11:26,542 INFO L226 Difference]: Without dead ends: 201147 [2020-12-22 06:11:26,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201147 states. [2020-12-22 06:11:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201147 to 101403. [2020-12-22 06:11:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101403 states. [2020-12-22 06:11:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101403 states to 101403 states and 189723 transitions. [2020-12-22 06:11:32,349 INFO L78 Accepts]: Start accepts. Automaton has 101403 states and 189723 transitions. Word has length 48 [2020-12-22 06:11:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:32,349 INFO L481 AbstractCegarLoop]: Abstraction has 101403 states and 189723 transitions. [2020-12-22 06:11:32,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 101403 states and 189723 transitions. [2020-12-22 06:11:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 06:11:32,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:32,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:32,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:11:32,352 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1015731819, now seen corresponding path program 1 times [2020-12-22 06:11:32,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:32,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303346448] [2020-12-22 06:11:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:32,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303346448] [2020-12-22 06:11:32,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:32,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:32,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235662102] [2020-12-22 06:11:32,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:32,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:32,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:32,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:32,458 INFO L87 Difference]: Start difference. First operand 101403 states and 189723 transitions. Second operand 5 states. [2020-12-22 06:11:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:56,420 INFO L93 Difference]: Finished difference Result 851062 states and 1595572 transitions. [2020-12-22 06:11:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:11:56,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-12-22 06:11:56,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:58,479 INFO L225 Difference]: With dead ends: 851062 [2020-12-22 06:11:58,479 INFO L226 Difference]: Without dead ends: 749713 [2020-12-22 06:11:58,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:12:00,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749713 states. [2020-12-22 06:12:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749713 to 197771. [2020-12-22 06:12:11,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197771 states. [2020-12-22 06:12:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197771 states to 197771 states and 369803 transitions. [2020-12-22 06:12:12,363 INFO L78 Accepts]: Start accepts. Automaton has 197771 states and 369803 transitions. Word has length 49 [2020-12-22 06:12:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:12,363 INFO L481 AbstractCegarLoop]: Abstraction has 197771 states and 369803 transitions. [2020-12-22 06:12:12,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:12:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 197771 states and 369803 transitions. [2020-12-22 06:12:12,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:12:12,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:12,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:12:12,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:12:12,365 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:12,367 INFO L82 PathProgramCache]: Analyzing trace with hash 49992538, now seen corresponding path program 1 times [2020-12-22 06:12:12,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:12,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9472975] [2020-12-22 06:12:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:12:12,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9472975] [2020-12-22 06:12:12,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:12,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:12:12,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924328335] [2020-12-22 06:12:12,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:12:12,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:12,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:12:12,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:12:12,452 INFO L87 Difference]: Start difference. First operand 197771 states and 369803 transitions. Second operand 3 states. [2020-12-22 06:12:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:12:25,313 INFO L93 Difference]: Finished difference Result 589645 states and 1103681 transitions. [2020-12-22 06:12:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:12:25,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-22 06:12:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:12:26,178 INFO L225 Difference]: With dead ends: 589645 [2020-12-22 06:12:26,178 INFO L226 Difference]: Without dead ends: 391924 [2020-12-22 06:12:26,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:12:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391924 states. [2020-12-22 06:12:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391924 to 197663. [2020-12-22 06:12:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197663 states. [2020-12-22 06:12:36,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197663 states to 197663 states and 369263 transitions. [2020-12-22 06:12:36,652 INFO L78 Accepts]: Start accepts. Automaton has 197663 states and 369263 transitions. Word has length 54 [2020-12-22 06:12:36,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:12:36,653 INFO L481 AbstractCegarLoop]: Abstraction has 197663 states and 369263 transitions. [2020-12-22 06:12:36,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:12:36,653 INFO L276 IsEmpty]: Start isEmpty. Operand 197663 states and 369263 transitions. [2020-12-22 06:12:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:12:36,659 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:12:36,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:12:36,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:12:36,659 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:12:36,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:12:36,660 INFO L82 PathProgramCache]: Analyzing trace with hash -44258635, now seen corresponding path program 1 times [2020-12-22 06:12:36,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:12:36,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757553164] [2020-12-22 06:12:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:12:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:12:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:12:36,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757553164] [2020-12-22 06:12:36,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:12:36,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:12:36,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186101582] [2020-12-22 06:12:36,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:12:36,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:12:36,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:12:36,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:12:36,788 INFO L87 Difference]: Start difference. First operand 197663 states and 369263 transitions. Second operand 5 states.