/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-crafted/NonTermination3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 19:04:46,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 19:04:46,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 19:04:46,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 19:04:46,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 19:04:46,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 19:04:46,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 19:04:46,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 19:04:46,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 19:04:46,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 19:04:46,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 19:04:46,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 19:04:46,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 19:04:46,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 19:04:46,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 19:04:46,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 19:04:46,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 19:04:46,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 19:04:46,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 19:04:46,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 19:04:46,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 19:04:46,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 19:04:46,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 19:04:46,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 19:04:46,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 19:04:46,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 19:04:46,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 19:04:46,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 19:04:46,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 19:04:46,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 19:04:46,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 19:04:46,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 19:04:46,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 19:04:46,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 19:04:46,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 19:04:46,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 19:04:46,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-22 19:04:46,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 19:04:46,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 19:04:46,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 19:04:46,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 19:04:46,996 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 19:04:46,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 19:04:46,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 19:04:46,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 19:04:46,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 19:04:46,997 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 19:04:46,999 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 19:04:46,999 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-22 19:04:46,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 19:04:46,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 19:04:47,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 19:04:47,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 19:04:47,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 19:04:47,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 19:04:47,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:04:47,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 19:04:47,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 19:04:47,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 19:04:47,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 19:04:47,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 19:04:47,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 19:04:47,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 19:04:47,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 19:04:47,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 19:04:47,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 19:04:47,444 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 19:04:47,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NonTermination3-1.c [2020-12-22 19:04:47,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cdf8855b/556833c517f34c25a22d8bdeabeaf672/FLAG00d5ad15d [2020-12-22 19:04:48,200 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 19:04:48,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTermination3-1.c [2020-12-22 19:04:48,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cdf8855b/556833c517f34c25a22d8bdeabeaf672/FLAG00d5ad15d [2020-12-22 19:04:48,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cdf8855b/556833c517f34c25a22d8bdeabeaf672 [2020-12-22 19:04:48,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 19:04:48,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 19:04:48,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 19:04:48,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 19:04:48,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 19:04:48,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742cd900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48, skipping insertion in model container [2020-12-22 19:04:48,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 19:04:48,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 19:04:48,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:04:48,793 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 19:04:48,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 19:04:48,835 INFO L208 MainTranslator]: Completed translation [2020-12-22 19:04:48,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48 WrapperNode [2020-12-22 19:04:48,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 19:04:48,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 19:04:48,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 19:04:48,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 19:04:48,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 19:04:48,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 19:04:48,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 19:04:48,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 19:04:48,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... [2020-12-22 19:04:48,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 19:04:48,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 19:04:48,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 19:04:48,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 19:04:48,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 19:04:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 19:04:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 19:04:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 19:04:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 19:04:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 19:04:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 19:04:49,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 19:04:49,331 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-22 19:04:49,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:04:49 BoogieIcfgContainer [2020-12-22 19:04:49,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 19:04:49,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 19:04:49,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 19:04:49,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 19:04:49,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:04:48" (1/3) ... [2020-12-22 19:04:49,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e2373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:04:49, skipping insertion in model container [2020-12-22 19:04:49,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:04:48" (2/3) ... [2020-12-22 19:04:49,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e2373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:04:49, skipping insertion in model container [2020-12-22 19:04:49,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:04:49" (3/3) ... [2020-12-22 19:04:49,342 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTermination3-1.c [2020-12-22 19:04:49,357 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 19:04:49,363 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 19:04:49,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 19:04:49,409 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 19:04:49,410 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 19:04:49,410 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 19:04:49,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 19:04:49,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 19:04:49,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 19:04:49,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 19:04:49,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 19:04:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-22 19:04:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:04:49,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:49,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:04:49,437 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:49,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:49,445 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-22 19:04:49,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:49,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988062038] [2020-12-22 19:04:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:49,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988062038] [2020-12-22 19:04:49,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:04:49,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:04:49,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178429784] [2020-12-22 19:04:49,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:04:49,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:49,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:04:49,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:49,734 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2020-12-22 19:04:49,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:49,856 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-12-22 19:04:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:04:49,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:04:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:49,869 INFO L225 Difference]: With dead ends: 20 [2020-12-22 19:04:49,870 INFO L226 Difference]: Without dead ends: 18 [2020-12-22 19:04:49,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-22 19:04:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-22 19:04:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-22 19:04:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-12-22 19:04:49,911 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 4 [2020-12-22 19:04:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:49,912 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-12-22 19:04:49,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:04:49,912 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-22 19:04:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 19:04:49,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:49,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 19:04:49,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 19:04:49,914 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:49,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:49,915 INFO L82 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2020-12-22 19:04:49,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:49,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062716095] [2020-12-22 19:04:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:50,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062716095] [2020-12-22 19:04:50,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:04:50,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 19:04:50,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72832606] [2020-12-22 19:04:50,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:04:50,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:50,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:04:50,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:50,030 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2020-12-22 19:04:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:50,093 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-12-22 19:04:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:04:50,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 19:04:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:50,095 INFO L225 Difference]: With dead ends: 22 [2020-12-22 19:04:50,095 INFO L226 Difference]: Without dead ends: 22 [2020-12-22 19:04:50,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:50,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-22 19:04:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-12-22 19:04:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-22 19:04:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-12-22 19:04:50,100 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2020-12-22 19:04:50,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:50,101 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-12-22 19:04:50,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:04:50,101 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-22 19:04:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 19:04:50,102 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:50,102 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:50,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 19:04:50,102 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:50,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:50,103 INFO L82 PathProgramCache]: Analyzing trace with hash 264435913, now seen corresponding path program 1 times [2020-12-22 19:04:50,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:50,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719945361] [2020-12-22 19:04:50,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:50,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719945361] [2020-12-22 19:04:50,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106884047] [2020-12-22 19:04:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:50,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:04:50,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:50,451 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-12-22 19:04:50,454 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 19:04:50,494 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 19:04:50,496 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 19:04:50,496 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-12-22 19:04:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:50,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:50,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2020-12-22 19:04:50,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435059796] [2020-12-22 19:04:50,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 19:04:50,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:50,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 19:04:50,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:04:50,594 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2020-12-22 19:04:50,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:50,707 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-12-22 19:04:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:04:50,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-22 19:04:50,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:50,709 INFO L225 Difference]: With dead ends: 26 [2020-12-22 19:04:50,710 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 19:04:50,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:04:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 19:04:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-22 19:04:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 19:04:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-12-22 19:04:50,715 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2020-12-22 19:04:50,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:50,716 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-12-22 19:04:50,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 19:04:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-22 19:04:50,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 19:04:50,717 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:50,717 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:50,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 19:04:50,932 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:50,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash 502834590, now seen corresponding path program 1 times [2020-12-22 19:04:50,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:50,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591555663] [2020-12-22 19:04:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:04:51,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591555663] [2020-12-22 19:04:51,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:04:51,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 19:04:51,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973285410] [2020-12-22 19:04:51,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 19:04:51,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:51,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 19:04:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 19:04:51,100 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 5 states. [2020-12-22 19:04:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:51,218 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2020-12-22 19:04:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 19:04:51,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 19:04:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:51,220 INFO L225 Difference]: With dead ends: 29 [2020-12-22 19:04:51,220 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 19:04:51,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 19:04:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 19:04:51,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2020-12-22 19:04:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-22 19:04:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-12-22 19:04:51,224 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 18 [2020-12-22 19:04:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:51,225 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-12-22 19:04:51,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 19:04:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-12-22 19:04:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 19:04:51,226 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:51,226 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:51,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 19:04:51,227 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:51,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1591990808, now seen corresponding path program 1 times [2020-12-22 19:04:51,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:51,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98425603] [2020-12-22 19:04:51,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 19:04:51,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98425603] [2020-12-22 19:04:51,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 19:04:51,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 19:04:51,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399058888] [2020-12-22 19:04:51,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 19:04:51,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:51,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 19:04:51,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:51,300 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 3 states. [2020-12-22 19:04:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:51,320 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-12-22 19:04:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 19:04:51,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 19:04:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:51,322 INFO L225 Difference]: With dead ends: 26 [2020-12-22 19:04:51,322 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 19:04:51,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 19:04:51,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 19:04:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-22 19:04:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 19:04:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-12-22 19:04:51,333 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 19 [2020-12-22 19:04:51,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:51,333 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-12-22 19:04:51,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 19:04:51,334 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-22 19:04:51,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 19:04:51,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:51,335 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:51,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 19:04:51,336 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:51,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:51,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2107076543, now seen corresponding path program 1 times [2020-12-22 19:04:51,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:51,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068791262] [2020-12-22 19:04:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:51,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068791262] [2020-12-22 19:04:51,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448235716] [2020-12-22 19:04:51,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:51,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 19:04:51,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:51,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:51,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 19:04:51,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582224331] [2020-12-22 19:04:51,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 19:04:51,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:51,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 19:04:51,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:04:51,618 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2020-12-22 19:04:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:51,680 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2020-12-22 19:04:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 19:04:51,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-22 19:04:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:51,682 INFO L225 Difference]: With dead ends: 33 [2020-12-22 19:04:51,682 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 19:04:51,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 19:04:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 19:04:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-12-22 19:04:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 19:04:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-12-22 19:04:51,687 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 20 [2020-12-22 19:04:51,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:51,687 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-12-22 19:04:51,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 19:04:51,687 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-12-22 19:04:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 19:04:51,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:51,688 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:51,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:51,903 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1146749636, now seen corresponding path program 2 times [2020-12-22 19:04:51,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:51,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702484483] [2020-12-22 19:04:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:52,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702484483] [2020-12-22 19:04:52,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42143789] [2020-12-22 19:04:52,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:52,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 19:04:52,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:52,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:04:52,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-22 19:04:52,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 19:04:52,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-12-22 19:04:52,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665289060] [2020-12-22 19:04:52,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 19:04:52,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:52,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 19:04:52,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:04:52,229 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 4 states. [2020-12-22 19:04:52,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:52,270 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-12-22 19:04:52,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 19:04:52,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-12-22 19:04:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:52,272 INFO L225 Difference]: With dead ends: 29 [2020-12-22 19:04:52,273 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 19:04:52,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:04:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 19:04:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-22 19:04:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 19:04:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-22 19:04:52,277 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2020-12-22 19:04:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:52,277 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-22 19:04:52,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 19:04:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-22 19:04:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 19:04:52,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:52,279 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:52,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:52,495 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:52,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1183676450, now seen corresponding path program 1 times [2020-12-22 19:04:52,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:52,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621891416] [2020-12-22 19:04:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:52,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621891416] [2020-12-22 19:04:52,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372331983] [2020-12-22 19:04:52,623 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 [2020-12-22 19:04:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:52,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 19:04:52,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:52,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:52,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 19:04:52,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351503831] [2020-12-22 19:04:52,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 19:04:52,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:52,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 19:04:52,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:04:52,775 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 8 states. [2020-12-22 19:04:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:52,835 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-12-22 19:04:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 19:04:52,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-12-22 19:04:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:52,837 INFO L225 Difference]: With dead ends: 33 [2020-12-22 19:04:52,837 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 19:04:52,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 19:04:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 19:04:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-12-22 19:04:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 19:04:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-12-22 19:04:52,842 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2020-12-22 19:04:52,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:52,842 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-12-22 19:04:52,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 19:04:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-12-22 19:04:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 19:04:52,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:52,843 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:53,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:53,057 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:53,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:53,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2067668863, now seen corresponding path program 2 times [2020-12-22 19:04:53,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:53,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411137372] [2020-12-22 19:04:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:53,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411137372] [2020-12-22 19:04:53,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820276742] [2020-12-22 19:04:53,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-12-22 19:04:53,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 19:04:53,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:53,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 19:04:53,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:53,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:53,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-22 19:04:53,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664478470] [2020-12-22 19:04:53,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 19:04:53,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:53,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 19:04:53,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:04:53,309 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2020-12-22 19:04:53,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:53,350 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-12-22 19:04:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 19:04:53,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-12-22 19:04:53,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:53,352 INFO L225 Difference]: With dead ends: 37 [2020-12-22 19:04:53,352 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 19:04:53,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 19:04:53,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 19:04:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-12-22 19:04:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-22 19:04:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-12-22 19:04:53,356 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 29 [2020-12-22 19:04:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:53,356 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-12-22 19:04:53,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 19:04:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-12-22 19:04:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 19:04:53,357 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:53,358 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:53,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:53,571 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:53,572 INFO L82 PathProgramCache]: Analyzing trace with hash 241291356, now seen corresponding path program 3 times [2020-12-22 19:04:53,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:53,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480059565] [2020-12-22 19:04:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:53,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480059565] [2020-12-22 19:04:53,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071020484] [2020-12-22 19:04:53,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:53,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-12-22 19:04:53,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:53,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 19:04:53,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:53,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:53,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 19:04:53,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17714650] [2020-12-22 19:04:53,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 19:04:53,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 19:04:53,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:04:53,865 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2020-12-22 19:04:53,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:53,915 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-12-22 19:04:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 19:04:53,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-12-22 19:04:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:53,917 INFO L225 Difference]: With dead ends: 41 [2020-12-22 19:04:53,917 INFO L226 Difference]: Without dead ends: 41 [2020-12-22 19:04:53,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 19:04:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-22 19:04:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2020-12-22 19:04:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 19:04:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-12-22 19:04:53,921 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 33 [2020-12-22 19:04:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:53,922 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-12-22 19:04:53,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 19:04:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-12-22 19:04:53,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 19:04:53,923 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:53,923 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:54,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:54,139 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:54,140 INFO L82 PathProgramCache]: Analyzing trace with hash 341297849, now seen corresponding path program 4 times [2020-12-22 19:04:54,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:54,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086782454] [2020-12-22 19:04:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:54,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086782454] [2020-12-22 19:04:54,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148963745] [2020-12-22 19:04:54,280 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:54,347 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-22 19:04:54,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:54,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 19:04:54,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:54,428 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:54,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:54,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2020-12-22 19:04:54,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980304453] [2020-12-22 19:04:54,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 19:04:54,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:54,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 19:04:54,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:04:54,431 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 11 states. [2020-12-22 19:04:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:54,481 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2020-12-22 19:04:54,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 19:04:54,481 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-12-22 19:04:54,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:54,482 INFO L225 Difference]: With dead ends: 45 [2020-12-22 19:04:54,482 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 19:04:54,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2020-12-22 19:04:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 19:04:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-12-22 19:04:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-22 19:04:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-12-22 19:04:54,487 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 37 [2020-12-22 19:04:54,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:54,487 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-12-22 19:04:54,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 19:04:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-12-22 19:04:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 19:04:54,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:54,488 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:54,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:54,703 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:54,705 INFO L82 PathProgramCache]: Analyzing trace with hash -539013482, now seen corresponding path program 5 times [2020-12-22 19:04:54,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:54,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706406494] [2020-12-22 19:04:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:54,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706406494] [2020-12-22 19:04:54,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753904814] [2020-12-22 19:04:54,819 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:54,901 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2020-12-22 19:04:54,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:54,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 19:04:54,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:54,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:54,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2020-12-22 19:04:54,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024848426] [2020-12-22 19:04:54,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 19:04:54,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:54,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 19:04:54,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:04:54,971 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 12 states. [2020-12-22 19:04:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:55,031 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-12-22 19:04:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 19:04:55,032 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-12-22 19:04:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:55,032 INFO L225 Difference]: With dead ends: 49 [2020-12-22 19:04:55,033 INFO L226 Difference]: Without dead ends: 49 [2020-12-22 19:04:55,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2020-12-22 19:04:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-12-22 19:04:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2020-12-22 19:04:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-22 19:04:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-12-22 19:04:55,037 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 41 [2020-12-22 19:04:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:55,038 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-12-22 19:04:55,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 19:04:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-12-22 19:04:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 19:04:55,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:55,039 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:55,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 19:04:55,254 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:55,255 INFO L82 PathProgramCache]: Analyzing trace with hash -770204685, now seen corresponding path program 6 times [2020-12-22 19:04:55,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:55,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71499638] [2020-12-22 19:04:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 19:04:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:55,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71499638] [2020-12-22 19:04:55,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704646920] [2020-12-22 19:04:55,408 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:55,521 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2020-12-22 19:04:55,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 19:04:55,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 19:04:55,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 19:04:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 19:04:55,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 19:04:55,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2020-12-22 19:04:55,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891016215] [2020-12-22 19:04:55,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 19:04:55,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 19:04:55,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 19:04:55,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:04:55,650 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 13 states. [2020-12-22 19:04:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 19:04:55,710 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-12-22 19:04:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 19:04:55,711 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-12-22 19:04:55,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 19:04:55,713 INFO L225 Difference]: With dead ends: 50 [2020-12-22 19:04:55,713 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 19:04:55,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2020-12-22 19:04:55,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 19:04:55,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-22 19:04:55,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 19:04:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-12-22 19:04:55,731 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 45 [2020-12-22 19:04:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 19:04:55,733 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-12-22 19:04:55,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 19:04:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-12-22 19:04:55,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 19:04:55,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 19:04:55,736 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 19:04:55,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 19:04:55,950 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-22 19:04:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 19:04:55,951 INFO L82 PathProgramCache]: Analyzing trace with hash 713028304, now seen corresponding path program 7 times [2020-12-22 19:04:55,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 19:04:55,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557849384] [2020-12-22 19:04:55,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 19:04:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:04:55,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:04:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 19:04:56,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 19:04:56,037 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 19:04:56,037 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 19:04:56,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 19:04:56,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 07:04:56 BoogieIcfgContainer [2020-12-22 19:04:56,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 19:04:56,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 19:04:56,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 19:04:56,077 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 19:04:56,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:04:49" (3/4) ... [2020-12-22 19:04:56,080 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 19:04:56,151 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/termination-crafted/NonTermination3-1.c-witness.graphml [2020-12-22 19:04:56,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 19:04:56,156 INFO L168 Benchmark]: Toolchain (without parser) took 7559.04 ms. Allocated memory was 152.0 MB in the beginning and 188.7 MB in the end (delta: 36.7 MB). Free memory was 127.8 MB in the beginning and 109.7 MB in the end (delta: 18.0 MB). Peak memory consumption was 55.5 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,157 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 19:04:56,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.34 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 118.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.10 ms. Allocated memory is still 152.0 MB. Free memory was 118.7 MB in the beginning and 117.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,158 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,158 INFO L168 Benchmark]: RCFGBuilder took 424.83 ms. Allocated memory is still 152.0 MB. Free memory was 116.2 MB in the beginning and 102.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,163 INFO L168 Benchmark]: TraceAbstraction took 6742.18 ms. Allocated memory was 152.0 MB in the beginning and 188.7 MB in the end (delta: 36.7 MB). Free memory was 102.3 MB in the beginning and 112.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,163 INFO L168 Benchmark]: Witness Printer took 78.01 ms. Allocated memory is still 188.7 MB. Free memory was 112.3 MB in the beginning and 109.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 19:04:56,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.34 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 118.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.10 ms. Allocated memory is still 152.0 MB. Free memory was 118.7 MB in the beginning and 117.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 152.0 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 424.83 ms. Allocated memory is still 152.0 MB. Free memory was 116.2 MB in the beginning and 102.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6742.18 ms. Allocated memory was 152.0 MB in the beginning and 188.7 MB in the end (delta: 36.7 MB). Free memory was 102.3 MB in the beginning and 112.3 MB in the end (delta: -10.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Witness Printer took 78.01 ms. Allocated memory is still 188.7 MB. Free memory was 112.3 MB in the beginning and 109.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 20]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n [L13] COND FALSE !(n < 10) [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] i = __VERIFIER_nondet_int() [L20] a[i] = 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.6s, OverallIterations: 14, TraceHistogramMax: 10, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 211 SDslu, 483 SDs, 0 SdLazy, 316 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 339 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 24 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 618 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 547 ConstructedInterpolants, 1 QuantifiedInterpolants, 50953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 778 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 22 InterpolantComputations, 5 PerfectInterpolantSequences, 58/1126 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 incorrect! Received shutdown request...