/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/eca-rers2012/Problem01_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:28:08,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:28:08,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:28:08,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:28:08,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:28:08,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:28:08,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:28:08,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:28:08,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:28:08,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:28:08,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:28:08,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:28:08,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:28:08,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:28:08,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:28:08,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:28:08,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:28:08,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:28:08,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:28:08,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:28:08,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:28:08,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:28:08,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:28:08,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:28:08,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:28:08,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:28:08,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:28:08,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:28:08,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:28:08,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:28:08,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:28:08,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:28:08,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:28:08,322 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:28:08,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:28:08,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:28:08,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:28:08,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:28:08,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:28:08,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:28:08,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:28:08,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:28:08,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:28:08,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:28:08,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:28:08,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:28:08,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:28:08,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:28:08,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:28:08,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:28:08,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:28:08,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:28:08,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:28:08,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:28:08,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:28:08,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:28:08,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:28:08,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:28:08,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:28:08,800 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:28:08,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2020-12-21 23:28:08,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd4693f5/2b1e60b0cf2048f4a09296dd9fa75ac9/FLAGc21843d73 [2020-12-21 23:28:09,566 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:28:09,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2020-12-21 23:28:09,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd4693f5/2b1e60b0cf2048f4a09296dd9fa75ac9/FLAGc21843d73 [2020-12-21 23:28:09,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd4693f5/2b1e60b0cf2048f4a09296dd9fa75ac9 [2020-12-21 23:28:09,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:28:09,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:28:09,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:28:09,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:28:09,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:28:09,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:28:09" (1/1) ... [2020-12-21 23:28:09,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c76629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:09, skipping insertion in model container [2020-12-21 23:28:09,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:28:09" (1/1) ... [2020-12-21 23:28:09,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:28:09,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:28:10,294 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/eca-rers2012/Problem01_label43.c[21463,21476] [2020-12-21 23:28:10,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:28:10,325 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:28:10,511 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/eca-rers2012/Problem01_label43.c[21463,21476] [2020-12-21 23:28:10,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:28:10,554 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:28:10,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10 WrapperNode [2020-12-21 23:28:10,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:28:10,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:28:10,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:28:10,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:28:10,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:28:10,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:28:10,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:28:10,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:28:10,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (1/1) ... [2020-12-21 23:28:10,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:28:10,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:28:10,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:28:10,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:28:10,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (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 [2020-12-21 23:28:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:28:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:28:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:28:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:28:12,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:28:12,584 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:28:12,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:12 BoogieIcfgContainer [2020-12-21 23:28:12,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:28:12,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:28:12,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:28:12,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:28:12,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:28:09" (1/3) ... [2020-12-21 23:28:12,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:28:12, skipping insertion in model container [2020-12-21 23:28:12,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:10" (2/3) ... [2020-12-21 23:28:12,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226ea599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:28:12, skipping insertion in model container [2020-12-21 23:28:12,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:12" (3/3) ... [2020-12-21 23:28:12,602 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2020-12-21 23:28:12,609 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:28:12,614 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:28:12,632 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:28:12,674 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:28:12,675 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:28:12,675 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:28:12,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:28:12,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:28:12,675 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:28:12,675 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:28:12,676 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:28:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-12-21 23:28:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-21 23:28:12,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:12,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:12,713 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:12,719 INFO L82 PathProgramCache]: Analyzing trace with hash -46355601, now seen corresponding path program 1 times [2020-12-21 23:28:12,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:12,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352713177] [2020-12-21 23:28:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:13,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352713177] [2020-12-21 23:28:13,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:13,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:13,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551475200] [2020-12-21 23:28:13,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:13,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:13,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:13,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:13,420 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-12-21 23:28:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:14,710 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2020-12-21 23:28:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:14,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-12-21 23:28:14,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:14,728 INFO L225 Difference]: With dead ends: 528 [2020-12-21 23:28:14,729 INFO L226 Difference]: Without dead ends: 266 [2020-12-21 23:28:14,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-21 23:28:14,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-21 23:28:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-21 23:28:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-12-21 23:28:14,798 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 128 [2020-12-21 23:28:14,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:14,799 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-12-21 23:28:14,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-12-21 23:28:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-21 23:28:14,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:14,804 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:14,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:28:14,804 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash -861882041, now seen corresponding path program 1 times [2020-12-21 23:28:14,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:14,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846516245] [2020-12-21 23:28:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:14,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846516245] [2020-12-21 23:28:14,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:14,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:14,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261252318] [2020-12-21 23:28:14,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:14,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:14,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:14,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:14,964 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-12-21 23:28:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:15,908 INFO L93 Difference]: Finished difference Result 794 states and 1172 transitions. [2020-12-21 23:28:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:15,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-12-21 23:28:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:15,915 INFO L225 Difference]: With dead ends: 794 [2020-12-21 23:28:15,915 INFO L226 Difference]: Without dead ends: 530 [2020-12-21 23:28:15,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-12-21 23:28:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-12-21 23:28:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-12-21 23:28:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-12-21 23:28:15,967 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 133 [2020-12-21 23:28:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:15,967 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-12-21 23:28:15,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-12-21 23:28:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-21 23:28:15,973 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:15,974 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:15,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:28:15,974 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:15,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:15,975 INFO L82 PathProgramCache]: Analyzing trace with hash -369009516, now seen corresponding path program 1 times [2020-12-21 23:28:15,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:15,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253455106] [2020-12-21 23:28:15,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:16,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253455106] [2020-12-21 23:28:16,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:16,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:28:16,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883318078] [2020-12-21 23:28:16,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:28:16,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:16,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:28:16,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:16,074 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 4 states. [2020-12-21 23:28:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:17,608 INFO L93 Difference]: Finished difference Result 1840 states and 2594 transitions. [2020-12-21 23:28:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:28:17,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2020-12-21 23:28:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:17,617 INFO L225 Difference]: With dead ends: 1840 [2020-12-21 23:28:17,617 INFO L226 Difference]: Without dead ends: 1314 [2020-12-21 23:28:17,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-12-21 23:28:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-12-21 23:28:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-12-21 23:28:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1707 transitions. [2020-12-21 23:28:17,665 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1707 transitions. Word has length 140 [2020-12-21 23:28:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:17,665 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1707 transitions. [2020-12-21 23:28:17,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:28:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1707 transitions. [2020-12-21 23:28:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-12-21 23:28:17,673 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:17,673 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:17,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:28:17,674 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:17,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1970011886, now seen corresponding path program 1 times [2020-12-21 23:28:17,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:17,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498008414] [2020-12-21 23:28:17,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:17,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498008414] [2020-12-21 23:28:17,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:17,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:17,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214438836] [2020-12-21 23:28:17,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:17,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:17,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:17,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:17,763 INFO L87 Difference]: Start difference. First operand 1314 states and 1707 transitions. Second operand 3 states. [2020-12-21 23:28:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:18,582 INFO L93 Difference]: Finished difference Result 3281 states and 4194 transitions. [2020-12-21 23:28:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:18,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-12-21 23:28:18,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:18,592 INFO L225 Difference]: With dead ends: 3281 [2020-12-21 23:28:18,592 INFO L226 Difference]: Without dead ends: 1969 [2020-12-21 23:28:18,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:18,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-12-21 23:28:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-12-21 23:28:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-12-21 23:28:18,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2142 transitions. [2020-12-21 23:28:18,641 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2142 transitions. Word has length 143 [2020-12-21 23:28:18,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:18,641 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 2142 transitions. [2020-12-21 23:28:18,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:18,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2142 transitions. [2020-12-21 23:28:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-21 23:28:18,646 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:18,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:18,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:28:18,647 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash -953142050, now seen corresponding path program 1 times [2020-12-21 23:28:18,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:18,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563710248] [2020-12-21 23:28:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-21 23:28:18,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563710248] [2020-12-21 23:28:18,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:18,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:18,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12438552] [2020-12-21 23:28:18,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:18,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:18,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:18,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:18,726 INFO L87 Difference]: Start difference. First operand 1707 states and 2142 transitions. Second operand 3 states. [2020-12-21 23:28:19,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:19,595 INFO L93 Difference]: Finished difference Result 4067 states and 5161 transitions. [2020-12-21 23:28:19,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:19,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-21 23:28:19,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:19,606 INFO L225 Difference]: With dead ends: 4067 [2020-12-21 23:28:19,606 INFO L226 Difference]: Without dead ends: 2231 [2020-12-21 23:28:19,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:19,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-12-21 23:28:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2020-12-21 23:28:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-12-21 23:28:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2279 transitions. [2020-12-21 23:28:19,658 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2279 transitions. Word has length 144 [2020-12-21 23:28:19,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:19,658 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2279 transitions. [2020-12-21 23:28:19,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:19,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2279 transitions. [2020-12-21 23:28:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-21 23:28:19,664 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:19,664 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:19,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:28:19,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:19,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:19,665 INFO L82 PathProgramCache]: Analyzing trace with hash 655727382, now seen corresponding path program 1 times [2020-12-21 23:28:19,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:19,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349320050] [2020-12-21 23:28:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-21 23:28:19,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349320050] [2020-12-21 23:28:19,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:19,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:28:19,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075926876] [2020-12-21 23:28:19,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:28:19,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:19,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:28:19,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:19,786 INFO L87 Difference]: Start difference. First operand 1969 states and 2279 transitions. Second operand 4 states. [2020-12-21 23:28:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:21,014 INFO L93 Difference]: Finished difference Result 4067 states and 4702 transitions. [2020-12-21 23:28:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:28:21,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-12-21 23:28:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:21,024 INFO L225 Difference]: With dead ends: 4067 [2020-12-21 23:28:21,025 INFO L226 Difference]: Without dead ends: 2100 [2020-12-21 23:28:21,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-12-21 23:28:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-12-21 23:28:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-12-21 23:28:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2355 transitions. [2020-12-21 23:28:21,114 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2355 transitions. Word has length 148 [2020-12-21 23:28:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:21,114 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2355 transitions. [2020-12-21 23:28:21,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:28:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2355 transitions. [2020-12-21 23:28:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-21 23:28:21,120 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:21,121 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:21,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:28:21,121 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:21,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:21,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1859323838, now seen corresponding path program 1 times [2020-12-21 23:28:21,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:21,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243674117] [2020-12-21 23:28:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-21 23:28:21,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243674117] [2020-12-21 23:28:21,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834425224] [2020-12-21 23:28:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:21,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:21,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:21,904 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-21 23:28:21,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:21,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:21,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521171358] [2020-12-21 23:28:21,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:21,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:21,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:21,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:21,908 INFO L87 Difference]: Start difference. First operand 2100 states and 2355 transitions. Second operand 3 states. [2020-12-21 23:28:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:22,684 INFO L93 Difference]: Finished difference Result 4198 states and 4708 transitions. [2020-12-21 23:28:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:22,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-21 23:28:22,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:22,696 INFO L225 Difference]: With dead ends: 4198 [2020-12-21 23:28:22,697 INFO L226 Difference]: Without dead ends: 2100 [2020-12-21 23:28:22,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-12-21 23:28:22,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2020-12-21 23:28:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-12-21 23:28:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1994 transitions. [2020-12-21 23:28:22,748 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1994 transitions. Word has length 177 [2020-12-21 23:28:22,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:22,749 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 1994 transitions. [2020-12-21 23:28:22,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1994 transitions. [2020-12-21 23:28:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-12-21 23:28:22,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:22,755 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:22,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-21 23:28:22,969 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:22,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1121670793, now seen corresponding path program 1 times [2020-12-21 23:28:22,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:22,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957311097] [2020-12-21 23:28:22,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-12-21 23:28:23,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957311097] [2020-12-21 23:28:23,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177646832] [2020-12-21 23:28:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:23,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:23,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-21 23:28:23,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:23,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:23,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626738664] [2020-12-21 23:28:23,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:23,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:23,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:23,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:23,589 INFO L87 Difference]: Start difference. First operand 1838 states and 1994 transitions. Second operand 3 states. [2020-12-21 23:28:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:24,411 INFO L93 Difference]: Finished difference Result 4329 states and 4703 transitions. [2020-12-21 23:28:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:24,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-12-21 23:28:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:24,423 INFO L225 Difference]: With dead ends: 4329 [2020-12-21 23:28:24,423 INFO L226 Difference]: Without dead ends: 2493 [2020-12-21 23:28:24,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-12-21 23:28:24,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2020-12-21 23:28:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-12-21 23:28:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2277 transitions. [2020-12-21 23:28:24,472 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2277 transitions. Word has length 194 [2020-12-21 23:28:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:24,472 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2277 transitions. [2020-12-21 23:28:24,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2277 transitions. [2020-12-21 23:28:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-21 23:28:24,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:24,479 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:24,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:24,695 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:24,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:24,697 INFO L82 PathProgramCache]: Analyzing trace with hash 2050144885, now seen corresponding path program 1 times [2020-12-21 23:28:24,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:24,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961697106] [2020-12-21 23:28:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-21 23:28:24,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961697106] [2020-12-21 23:28:24,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453899971] [2020-12-21 23:28:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:25,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:25,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-21 23:28:25,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:25,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:25,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396870588] [2020-12-21 23:28:25,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:25,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:25,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:25,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:25,335 INFO L87 Difference]: Start difference. First operand 2100 states and 2277 transitions. Second operand 3 states. [2020-12-21 23:28:26,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:26,094 INFO L93 Difference]: Finished difference Result 4982 states and 5419 transitions. [2020-12-21 23:28:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:26,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-12-21 23:28:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:26,096 INFO L225 Difference]: With dead ends: 4982 [2020-12-21 23:28:26,096 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:28:26,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:28:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:28:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:28:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:28:26,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2020-12-21 23:28:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:26,104 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:28:26,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:26,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:28:26,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:28:26,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:26,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:28:26,510 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-12-21 23:28:26,657 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-12-21 23:28:26,661 INFO L189 CegarLoopUtils]: For program point L564(line 564) no Hoare annotation was computed. [2020-12-21 23:28:26,661 INFO L189 CegarLoopUtils]: For program point L531(line 531) no Hoare annotation was computed. [2020-12-21 23:28:26,661 INFO L189 CegarLoopUtils]: For program point L498(line 498) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L465(line 465) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L432(line 432) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L598(line 598) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,662 INFO L189 CegarLoopUtils]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L567(line 567) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L534(line 534) no Hoare annotation was computed. [2020-12-21 23:28:26,663 INFO L189 CegarLoopUtils]: For program point L501(line 501) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L468(line 468) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L435(line 435) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L402(line 402) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-12-21 23:28:26,664 INFO L189 CegarLoopUtils]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-12-21 23:28:26,665 INFO L189 CegarLoopUtils]: For program point L570(line 570) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L537(line 537) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L504(line 504) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L471(line 471) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L438(line 438) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L405(line 405) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-12-21 23:28:26,666 INFO L189 CegarLoopUtils]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,667 INFO L189 CegarLoopUtils]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L573(line 573) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L540(line 540) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L507(line 507) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L474(line 474) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L441(line 441) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L408(line 408) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-12-21 23:28:26,668 INFO L189 CegarLoopUtils]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,669 INFO L189 CegarLoopUtils]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L576(line 576) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L543(line 543) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L510(line 510) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L477(line 477) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L444(line 444) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L411(line 411) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-12-21 23:28:26,670 INFO L189 CegarLoopUtils]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L579(line 579) no Hoare annotation was computed. [2020-12-21 23:28:26,671 INFO L189 CegarLoopUtils]: For program point L546(line 546) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L513(line 513) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L480(line 480) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L447(line 447) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L414(line 414) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-12-21 23:28:26,672 INFO L189 CegarLoopUtils]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-12-21 23:28:26,673 INFO L189 CegarLoopUtils]: For program point L582(line 582) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L549(line 549) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L516(line 516) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L483(line 483) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L450(line 450) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L417(line 417) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L189 CegarLoopUtils]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-12-21 23:28:26,674 INFO L185 CegarLoopUtils]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (<= ~a16~0 5) .cse1 .cse0) (and (= ~a21~0 1) .cse1 (= ~a7~0 0) .cse0) (<= ~a17~0 0) (and (not (= ~a7~0 1)) (<= 15 ~a8~0) .cse0))) [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L552(line 552) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L519(line 519) no Hoare annotation was computed. [2020-12-21 23:28:26,675 INFO L189 CegarLoopUtils]: For program point L486(line 486) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L453(line 453) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L420(line 420) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-12-21 23:28:26,676 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L192 CegarLoopUtils]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-12-21 23:28:26,677 INFO L189 CegarLoopUtils]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L555(line 555) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L522(line 522) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L489(line 489) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L456(line 456) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L423(line 423) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,678 INFO L189 CegarLoopUtils]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L558(line 558) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L525(line 525) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L492(line 492) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L459(line 459) no Hoare annotation was computed. [2020-12-21 23:28:26,679 INFO L189 CegarLoopUtils]: For program point L426(line 426) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,680 INFO L185 CegarLoopUtils]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (<= ~a16~0 5) .cse1 .cse0) (and (= ~a21~0 1) .cse1 (= ~a7~0 0) .cse0) (<= ~a17~0 0) (and (not (= ~a7~0 1)) (<= 15 ~a8~0) .cse0))) [2020-12-21 23:28:26,680 INFO L189 CegarLoopUtils]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 570) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L561(line 561) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L528(line 528) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L495(line 495) no Hoare annotation was computed. [2020-12-21 23:28:26,681 INFO L189 CegarLoopUtils]: For program point L462(line 462) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L429(line 429) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-12-21 23:28:26,682 INFO L189 CegarLoopUtils]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-12-21 23:28:26,683 INFO L189 CegarLoopUtils]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-12-21 23:28:26,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:28:26 BoogieIcfgContainer [2020-12-21 23:28:26,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:28:26,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:28:26,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:28:26,703 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:28:26,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:12" (3/4) ... [2020-12-21 23:28:26,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:28:26,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:28:26,730 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:28:26,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:28:26,732 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:28:26,922 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem01_label43.c-witness.graphml [2020-12-21 23:28:26,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:28:26,924 INFO L168 Benchmark]: Toolchain (without parser) took 17101.44 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 122.6 MB in the beginning and 211.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,924 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:28:26,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.39 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.8 MB in the end (delta: -382.7 kB). Peak memory consumption was 23.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.62 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 117.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,926 INFO L168 Benchmark]: Boogie Preprocessor took 122.95 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 112.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,927 INFO L168 Benchmark]: RCFGBuilder took 1769.96 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 112.4 MB in the beginning and 154.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,927 INFO L168 Benchmark]: TraceAbstraction took 14112.19 ms. Allocated memory was 185.6 MB in the beginning and 323.0 MB in the end (delta: 137.4 MB). Free memory was 154.1 MB in the beginning and 227.1 MB in the end (delta: -73.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,927 INFO L168 Benchmark]: Witness Printer took 219.65 ms. Allocated memory is still 323.0 MB. Free memory was 226.6 MB in the beginning and 211.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:26,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 729.39 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.8 MB in the end (delta: -382.7 kB). Peak memory consumption was 23.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 136.62 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 117.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.95 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 112.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1769.96 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 112.4 MB in the beginning and 154.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14112.19 ms. Allocated memory was 185.6 MB in the beginning and 323.0 MB in the end (delta: 137.4 MB). Free memory was 154.1 MB in the beginning and 227.1 MB in the end (delta: -73.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 8.0 GB. * Witness Printer took 219.65 ms. Allocated memory is still 323.0 MB. Free memory was 226.6 MB in the beginning and 211.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 570]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a17 == 1)) || a17 <= 0) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a17 == 1)) || a17 <= 0) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.6s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 607 SDtfs, 1255 SDslu, 56 SDs, 0 SdLazy, 3383 SolverSat, 619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 589 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1181 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1088 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 106 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1974 NumberOfCodeBlocks, 1974 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1962 ConstructedInterpolants, 0 QuantifiedInterpolants, 615967 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1155 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 653/662 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...