/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:29:35,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:29:35,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:29:35,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:29:35,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:29:35,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:29:35,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:29:35,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:29:35,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:29:35,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:29:35,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:29:35,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:29:35,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:29:35,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:29:35,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:29:35,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:29:35,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:29:35,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:29:35,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:29:35,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:29:35,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:29:35,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:29:35,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:29:35,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:29:35,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:29:35,462 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:29:35,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:29:35,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:29:35,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:29:35,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:29:35,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:29:35,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:29:35,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:29:35,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:29:35,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:29:35,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:29:35,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:29:35,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:29:35,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:29:35,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:29:35,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:29:35,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:29:35,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:29:35,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:29:35,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:29:35,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:29:35,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:29:35,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:29:35,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:29:35,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:29:35,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:29:35,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:29:36,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:29:36,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:29:36,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:29:36,048 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:29:36,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-10-23 18:29:36,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586316137/0bb12a29e87046e7ad9351d9e4f59eae/FLAG219ef569b [2020-10-23 18:29:36,939 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:29:36,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-10-23 18:29:36,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586316137/0bb12a29e87046e7ad9351d9e4f59eae/FLAG219ef569b [2020-10-23 18:29:37,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/586316137/0bb12a29e87046e7ad9351d9e4f59eae [2020-10-23 18:29:37,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:29:37,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:29:37,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:29:37,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:29:37,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:29:37,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:37,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1ea5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37, skipping insertion in model container [2020-10-23 18:29:37,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:37,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:29:37,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:29:37,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:29:37,750 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:29:37,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:29:37,949 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:29:37,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37 WrapperNode [2020-10-23 18:29:37,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:29:37,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:29:37,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:29:37,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:29:37,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:37,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:37,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:37,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:38,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:38,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:38,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (1/1) ... [2020-10-23 18:29:38,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:29:38,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:29:38,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:29:38,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:29:38,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (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 [2020-10-23 18:29:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:29:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:29:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:29:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:29:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:29:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:29:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:29:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:29:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:29:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:29:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:29:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:29:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:29:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:29:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:29:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:29:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:29:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:29:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:29:39,815 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:29:39,817 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:29:39,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:29:39 BoogieIcfgContainer [2020-10-23 18:29:39,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:29:39,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:29:39,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:29:39,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:29:39,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:29:37" (1/3) ... [2020-10-23 18:29:39,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da6ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:29:39, skipping insertion in model container [2020-10-23 18:29:39,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:37" (2/3) ... [2020-10-23 18:29:39,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da6ea20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:29:39, skipping insertion in model container [2020-10-23 18:29:39,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:29:39" (3/3) ... [2020-10-23 18:29:39,834 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-10-23 18:29:39,849 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:29:39,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:29:39,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:29:39,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:29:39,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:29:39,909 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:29:39,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:29:39,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:29:39,909 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:29:39,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:29:39,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:29:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-23 18:29:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-23 18:29:39,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:39,953 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] [2020-10-23 18:29:39,954 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:39,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:39,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1723079445, now seen corresponding path program 1 times [2020-10-23 18:29:39,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:39,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241819879] [2020-10-23 18:29:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:40,615 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:29:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:40,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241819879] [2020-10-23 18:29:40,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:29:40,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:29:40,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905353915] [2020-10-23 18:29:40,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:29:40,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:40,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:29:40,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:29:40,781 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-23 18:29:40,994 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:29:41,402 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:29:43,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:43,756 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-23 18:29:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:29:43,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-10-23 18:29:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:43,781 INFO L225 Difference]: With dead ends: 703 [2020-10-23 18:29:43,781 INFO L226 Difference]: Without dead ends: 424 [2020-10-23 18:29:43,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:29:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-23 18:29:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-23 18:29:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-23 18:29:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 586 transitions. [2020-10-23 18:29:43,902 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 586 transitions. Word has length 101 [2020-10-23 18:29:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:43,903 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 586 transitions. [2020-10-23 18:29:43,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:29:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 586 transitions. [2020-10-23 18:29:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-23 18:29:43,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:43,911 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:29:43,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:29:43,912 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:43,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:43,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1301051185, now seen corresponding path program 1 times [2020-10-23 18:29:43,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:43,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802131272] [2020-10-23 18:29:43,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:44,194 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:29:44,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:44,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:29:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:44,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802131272] [2020-10-23 18:29:44,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:29:44,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:29:44,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334923727] [2020-10-23 18:29:44,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:29:44,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:44,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:29:44,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:29:44,304 INFO L87 Difference]: Start difference. First operand 418 states and 586 transitions. Second operand 8 states. [2020-10-23 18:29:44,461 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:29:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:46,490 INFO L93 Difference]: Finished difference Result 1132 states and 1660 transitions. [2020-10-23 18:29:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:29:46,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2020-10-23 18:29:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:46,510 INFO L225 Difference]: With dead ends: 1132 [2020-10-23 18:29:46,511 INFO L226 Difference]: Without dead ends: 720 [2020-10-23 18:29:46,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:29:46,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-23 18:29:46,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 698. [2020-10-23 18:29:46,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-23 18:29:46,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 979 transitions. [2020-10-23 18:29:46,650 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 979 transitions. Word has length 111 [2020-10-23 18:29:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:46,653 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 979 transitions. [2020-10-23 18:29:46,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:29:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 979 transitions. [2020-10-23 18:29:46,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-23 18:29:46,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:46,665 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:29:46,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:29:46,668 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:46,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:46,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1426351886, now seen corresponding path program 1 times [2020-10-23 18:29:46,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:46,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312930868] [2020-10-23 18:29:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:46,935 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:29:46,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:29:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:46,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:29:46,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312930868] [2020-10-23 18:29:46,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379989461] [2020-10-23 18:29:46,996 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 [2020-10-23 18:29:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:47,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:29:47,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:29:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:47,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:29:47,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-10-23 18:29:47,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158483147] [2020-10-23 18:29:47,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:29:47,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:47,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:29:47,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:29:47,229 INFO L87 Difference]: Start difference. First operand 698 states and 979 transitions. Second operand 3 states. [2020-10-23 18:29:48,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:48,266 INFO L93 Difference]: Finished difference Result 1938 states and 2760 transitions. [2020-10-23 18:29:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:29:48,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-23 18:29:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:48,278 INFO L225 Difference]: With dead ends: 1938 [2020-10-23 18:29:48,278 INFO L226 Difference]: Without dead ends: 1246 [2020-10-23 18:29:48,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:29:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-10-23 18:29:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1244. [2020-10-23 18:29:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1244 states. [2020-10-23 18:29:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1662 transitions. [2020-10-23 18:29:48,343 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1662 transitions. Word has length 112 [2020-10-23 18:29:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:48,344 INFO L481 AbstractCegarLoop]: Abstraction has 1244 states and 1662 transitions. [2020-10-23 18:29:48,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:29:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1662 transitions. [2020-10-23 18:29:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-23 18:29:48,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:48,350 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:29:48,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:29:48,564 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:48,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1377368205, now seen corresponding path program 1 times [2020-10-23 18:29:48,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:48,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660079374] [2020-10-23 18:29:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:48,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:29:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:48,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:29:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:29:49,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660079374] [2020-10-23 18:29:49,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98509614] [2020-10-23 18:29:49,050 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 [2020-10-23 18:29:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:29:49,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:29:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:49,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:29:49,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:29:49,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128131108] [2020-10-23 18:29:49,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:29:49,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:49,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:29:49,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:29:49,331 INFO L87 Difference]: Start difference. First operand 1244 states and 1662 transitions. Second operand 10 states. [2020-10-23 18:29:49,488 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:29:49,744 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:29:50,172 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:29:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:53,112 INFO L93 Difference]: Finished difference Result 3527 states and 5002 transitions. [2020-10-23 18:29:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 18:29:53,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 143 [2020-10-23 18:29:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:53,134 INFO L225 Difference]: With dead ends: 3527 [2020-10-23 18:29:53,135 INFO L226 Difference]: Without dead ends: 2289 [2020-10-23 18:29:53,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2020-10-23 18:29:53,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2020-10-23 18:29:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1421. [2020-10-23 18:29:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1421 states. [2020-10-23 18:29:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1898 transitions. [2020-10-23 18:29:53,249 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1898 transitions. Word has length 143 [2020-10-23 18:29:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:53,250 INFO L481 AbstractCegarLoop]: Abstraction has 1421 states and 1898 transitions. [2020-10-23 18:29:53,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:29:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1898 transitions. [2020-10-23 18:29:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 18:29:53,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:53,258 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-23 18:29:53,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:29:53,472 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:53,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:53,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2021111885, now seen corresponding path program 1 times [2020-10-23 18:29:53,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:53,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749040368] [2020-10-23 18:29:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:53,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:53,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:29:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:53,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:29:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:29:53,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749040368] [2020-10-23 18:29:53,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255786615] [2020-10-23 18:29:53,835 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 [2020-10-23 18:29:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:53,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-23 18:29:54,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:29:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-23 18:29:54,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:29:54,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-10-23 18:29:54,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477246450] [2020-10-23 18:29:54,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 18:29:54,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:54,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 18:29:54,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:29:54,162 INFO L87 Difference]: Start difference. First operand 1421 states and 1898 transitions. Second operand 9 states. [2020-10-23 18:29:54,326 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:29:57,061 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:29:57,388 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:29:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:58,067 INFO L93 Difference]: Finished difference Result 4352 states and 6179 transitions. [2020-10-23 18:29:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 18:29:58,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 18:29:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:58,099 INFO L225 Difference]: With dead ends: 4352 [2020-10-23 18:29:58,100 INFO L226 Difference]: Without dead ends: 2937 [2020-10-23 18:29:58,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:29:58,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-10-23 18:29:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2724. [2020-10-23 18:29:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2020-10-23 18:29:58,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3552 transitions. [2020-10-23 18:29:58,246 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3552 transitions. Word has length 167 [2020-10-23 18:29:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:58,248 INFO L481 AbstractCegarLoop]: Abstraction has 2724 states and 3552 transitions. [2020-10-23 18:29:58,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 18:29:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3552 transitions. [2020-10-23 18:29:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-23 18:29:58,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:58,261 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-23 18:29:58,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:29:58,477 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:58,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:58,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1429794508, now seen corresponding path program 1 times [2020-10-23 18:29:58,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:58,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206169176] [2020-10-23 18:29:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:29:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:29:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:29:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:29:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-23 18:29:58,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206169176] [2020-10-23 18:29:58,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658418058] [2020-10-23 18:29:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:29:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:58,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:29:58,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:29:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-23 18:29:59,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:29:59,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:29:59,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385776906] [2020-10-23 18:29:59,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:29:59,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:29:59,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:29:59,165 INFO L87 Difference]: Start difference. First operand 2724 states and 3552 transitions. Second operand 10 states. [2020-10-23 18:29:59,641 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-23 18:29:59,802 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:30:02,837 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-23 18:30:05,329 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-23 18:30:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:06,007 INFO L93 Difference]: Finished difference Result 6971 states and 9331 transitions. [2020-10-23 18:30:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 18:30:06,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2020-10-23 18:30:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:06,030 INFO L225 Difference]: With dead ends: 6971 [2020-10-23 18:30:06,030 INFO L226 Difference]: Without dead ends: 3818 [2020-10-23 18:30:06,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=181, Invalid=689, Unknown=0, NotChecked=0, Total=870 [2020-10-23 18:30:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2020-10-23 18:30:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3500. [2020-10-23 18:30:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3500 states. [2020-10-23 18:30:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4154 transitions. [2020-10-23 18:30:06,264 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4154 transitions. Word has length 184 [2020-10-23 18:30:06,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:06,264 INFO L481 AbstractCegarLoop]: Abstraction has 3500 states and 4154 transitions. [2020-10-23 18:30:06,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:30:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4154 transitions. [2020-10-23 18:30:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-23 18:30:06,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:06,281 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:06,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:06,495 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash 270073152, now seen corresponding path program 1 times [2020-10-23 18:30:06,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:06,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109889377] [2020-10-23 18:30:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:30:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 18:30:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-23 18:30:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 110 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-23 18:30:06,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109889377] [2020-10-23 18:30:06,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028737899] [2020-10-23 18:30:06,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:07,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:30:07,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 78 proven. 45 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-23 18:30:07,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:30:07,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2020-10-23 18:30:07,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528730378] [2020-10-23 18:30:07,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:30:07,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:07,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:30:07,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:30:07,181 INFO L87 Difference]: Start difference. First operand 3500 states and 4154 transitions. Second operand 10 states. [2020-10-23 18:30:07,337 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:30:07,591 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:30:08,564 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:30:08,965 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-23 18:30:10,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:10,916 INFO L93 Difference]: Finished difference Result 6390 states and 7731 transitions. [2020-10-23 18:30:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 18:30:10,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2020-10-23 18:30:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:10,918 INFO L225 Difference]: With dead ends: 6390 [2020-10-23 18:30:10,918 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:30:10,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2020-10-23 18:30:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:30:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:30:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:30:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:30:10,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2020-10-23 18:30:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:10,938 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:30:10,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:30:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:30:10,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:30:11,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-23 18:30:11,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:30:12,525 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 181 [2020-10-23 18:30:12,857 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 181 [2020-10-23 18:30:13,081 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2020-10-23 18:30:14,371 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 189 DAG size of output: 64 [2020-10-23 18:30:15,103 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 52 [2020-10-23 18:30:15,905 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 52 [2020-10-23 18:30:16,210 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2020-10-23 18:30:16,214 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:30:16,214 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:30:16,214 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:30:16,214 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:30:16,214 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,215 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-23 18:30:16,216 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-23 18:30:16,216 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-23 18:30:16,216 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-23 18:30:16,216 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-23 18:30:16,216 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,217 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-23 18:30:16,218 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-23 18:30:16,219 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-23 18:30:16,220 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-23 18:30:16,221 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,222 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-23 18:30:16,223 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,224 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,225 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-23 18:30:16,226 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,226 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-23 18:30:16,226 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-23 18:30:16,226 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-23 18:30:16,228 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-23 18:30:16,228 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-23 18:30:16,228 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-23 18:30:16,228 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,229 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-23 18:30:16,230 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,231 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,231 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse11 (= ~a21~0 1)) (.cse15 (= ~a7~0 |old(~a7~0)|)) (.cse10 (= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a20~0 |old(~a20~0)|)) (.cse13 (= ~a16~0 |old(~a16~0)|)) (.cse14 (= ~a8~0 |old(~a8~0)|))) (let ((.cse4 (not (<= |old(~a21~0)| 0))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse8 (and .cse15 .cse10 (= ~a21~0 |old(~a21~0)|) .cse12 .cse13 .cse14)) (.cse9 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse3 (and .cse15 .cse10 .cse11 .cse12 .cse13 .cse14)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse5 (not (= |old(~a7~0)| 1))) (.cse7 (not (= |old(~a20~0)| 1))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 .cse7 .cse2 .cse3) (or .cse0 (not (<= 15 |old(~a8~0)|)) .cse3 .cse2) (or .cse9 .cse4 .cse1 .cse5 .cse6 .cse8) (or .cse9 .cse0 .cse7 .cse3 .cse2) (or (and .cse10 .cse11 (= ~a7~0 1) .cse12 .cse13 .cse14) (and (or (= |old(~a8~0)| 13) .cse1 .cse5 .cse2) (or .cse1 .cse5 .cse7 .cse2)))))) [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-23 18:30:16,232 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,233 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L270 CegarLoopResult]: At program point L460(line 460) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a16~0)| 5))) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse1 (not (= |old(~a7~0)| 1))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse3 (not (= |old(~a17~0)| 1))) (.cse6 (not (= |old(~a20~0)| 1))) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse2 (not (= |old(~a21~0)| 1)))) (and (or (= |old(~a8~0)| 13) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse1 .cse5) (or .cse3 .cse1 .cse5 .cse6 .cse2) (or .cse0 .cse1 .cse6 .cse2) (or .cse7 .cse0 .cse2) (or .cse4 .cse1 .cse5 .cse6) (or .cse3 .cse7 .cse6 .cse2) (or .cse7 (not (<= 15 |old(~a8~0)|)) .cse2))) [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L460-1(line 460) no Hoare annotation was computed. [2020-10-23 18:30:16,234 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:16,235 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-23 18:30:16,236 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-23 18:30:16,237 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-23 18:30:16,237 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:30:16,237 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (= ~a20~0 1) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-23 18:30:16,237 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:30:16,237 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:30:16,237 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-10-23 18:30:16,237 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:30:16,238 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse0 (= ~a21~0 1)) (.cse5 (= ~a7~0 1)) (.cse1 (<= ~a16~0 5)) (.cse6 (<= ~a21~0 0)) (.cse4 (= ~a17~0 1)) (.cse7 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse3 .cse4) (not (= |old(~a20~0)| 1)) (and .cse5 .cse3 .cse6 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 (<= 15 ~a8~0)) (and .cse5 .cse0 .cse3 .cse4 .cse7) (and .cse5 .cse0 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse5 .cse1 (not (= ~a8~0 13))) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse1 .cse6 .cse4 .cse7))) [2020-10-23 18:30:16,238 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-23 18:30:16,238 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-23 18:30:16,238 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse0 (= ~a21~0 1)) (.cse5 (= ~a7~0 1)) (.cse1 (<= ~a16~0 5)) (.cse6 (<= ~a21~0 0)) (.cse4 (= ~a17~0 1)) (.cse7 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse3 .cse4) (not (= |old(~a20~0)| 1)) (and .cse5 .cse3 .cse6 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 (<= 15 ~a8~0)) (and .cse5 .cse0 .cse3 .cse4 .cse7) (and .cse5 .cse0 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse5 .cse1 (not (= ~a8~0 13))) (not (<= 15 |old(~a8~0)|)) (and .cse5 .cse1 .cse6 .cse4 .cse7))) [2020-10-23 18:30:16,238 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:30:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:30:16 BoogieIcfgContainer [2020-10-23 18:30:16,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:30:16,303 INFO L168 Benchmark]: Toolchain (without parser) took 39118.95 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 124.6 MB in the beginning and 282.3 MB in the end (delta: -157.8 MB). Peak memory consumption was 293.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:16,304 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:30:16,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 128.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:16,305 INFO L168 Benchmark]: Boogie Preprocessor took 136.48 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 123.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:16,309 INFO L168 Benchmark]: RCFGBuilder took 1733.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 101.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:16,310 INFO L168 Benchmark]: TraceAbstraction took 36458.77 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 101.4 MB in the beginning and 282.3 MB in the end (delta: -180.9 MB). Peak memory consumption was 269.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:16,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 777.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 128.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.48 ms. Allocated memory is still 151.0 MB. Free memory was 128.6 MB in the beginning and 123.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1733.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 101.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 36458.77 ms. Allocated memory was 151.0 MB in the beginning and 490.7 MB in the end (delta: 339.7 MB). Free memory was 101.4 MB in the beginning and 282.3 MB in the end (delta: -180.9 MB). Peak memory consumption was 269.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((((((a21 == 1 && a16 <= 5) && a7 <= 0) || !(\old(a7) <= 0)) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a17 == 1)) || !(\old(a20) == 1)) || (((a7 == 1 && a20 == 1) && a21 <= 0) && a8 <= 13)) || !(\old(a21) == 1)) || ((a21 == 1 && a7 <= 0) && 15 <= a8)) || ((((a7 == 1 && a21 == 1) && a20 == 1) && a17 == 1) && a8 <= 13)) || (((a7 == 1 && a21 == 1) && a16 <= 5) && a20 == 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && !(a8 == 13))) || !(15 <= \old(a8))) || ((((a7 == 1 && a16 <= 5) && a21 <= 0) && a17 == 1) && a8 <= 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.2s, OverallIterations: 7, TraceHistogramMax: 5, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 5695 SDslu, 466 SDs, 0 SdLazy, 8832 SolverSat, 2132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1000 GetRequests, 873 SyntacticMatches, 3 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3500occurred 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: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 1429 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 243 PreInvPairs, 339 NumberOfFragments, 820 HoareAnnotationTreeSize, 243 FomulaSimplifications, 177285 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12132 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1808 NumberOfCodeBlocks, 1808 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1796 ConstructedInterpolants, 0 QuantifiedInterpolants, 696069 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2715 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 683/821 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...