/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-MemCleanup-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/list-properties/list-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 18:51:35,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 18:51:35,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 18:51:35,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 18:51:35,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 18:51:35,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 18:51:35,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 18:51:35,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 18:51:35,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 18:51:35,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 18:51:35,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 18:51:35,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 18:51:35,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 18:51:35,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 18:51:35,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 18:51:35,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 18:51:35,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 18:51:35,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 18:51:35,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 18:51:35,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 18:51:35,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 18:51:35,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 18:51:35,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 18:51:35,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 18:51:35,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 18:51:35,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 18:51:35,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 18:51:35,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 18:51:35,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 18:51:35,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 18:51:35,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 18:51:35,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 18:51:35,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 18:51:35,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 18:51:35,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 18:51:35,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 18:51:35,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2020-12-22 18:51:35,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 18:51:35,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 18:51:35,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 18:51:35,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 18:51:35,247 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 18:51:35,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 18:51:35,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 18:51:35,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 18:51:35,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 18:51:35,248 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 18:51:35,249 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 18:51:35,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 18:51:35,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 18:51:35,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 18:51:35,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 18:51:35,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 18:51:35,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 18:51:35,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 18:51:35,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 18:51:35,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 18:51:35,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 18:51:35,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 18:51:35,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 18:51:35,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 18:51:35,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 18:51:35,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 18:51:35,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 18:51:35,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 18:51:35,688 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 18:51:35,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list-2.i [2020-12-22 18:51:35,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe9d9fda/f7e44f47317b406ca71f9419a2a86821/FLAGaba2c5c70 [2020-12-22 18:51:36,565 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 18:51:36,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i [2020-12-22 18:51:36,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe9d9fda/f7e44f47317b406ca71f9419a2a86821/FLAGaba2c5c70 [2020-12-22 18:51:36,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe9d9fda/f7e44f47317b406ca71f9419a2a86821 [2020-12-22 18:51:36,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 18:51:36,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 18:51:36,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 18:51:36,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 18:51:36,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 18:51:36,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:51:36" (1/1) ... [2020-12-22 18:51:36,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70d54672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:36, skipping insertion in model container [2020-12-22 18:51:36,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:51:36" (1/1) ... [2020-12-22 18:51:36,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 18:51:36,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 18:51:37,316 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2020-12-22 18:51:37,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 18:51:37,344 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 18:51:37,437 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list-2.i[23408,23421] [2020-12-22 18:51:37,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 18:51:37,571 INFO L208 MainTranslator]: Completed translation [2020-12-22 18:51:37,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37 WrapperNode [2020-12-22 18:51:37,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 18:51:37,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 18:51:37,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 18:51:37,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 18:51:37,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 18:51:37,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 18:51:37,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 18:51:37,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 18:51:37,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... [2020-12-22 18:51:37,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 18:51:37,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 18:51:37,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 18:51:37,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 18:51:37,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 18:51:37,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 18:51:37,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 18:51:37,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 18:51:37,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 18:51:38,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 18:51:38,560 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-22 18:51:38,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:38 BoogieIcfgContainer [2020-12-22 18:51:38,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 18:51:38,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 18:51:38,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 18:51:38,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 18:51:38,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:51:36" (1/3) ... [2020-12-22 18:51:38,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f1f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:51:38, skipping insertion in model container [2020-12-22 18:51:38,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:37" (2/3) ... [2020-12-22 18:51:38,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f1f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:51:38, skipping insertion in model container [2020-12-22 18:51:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:38" (3/3) ... [2020-12-22 18:51:38,575 INFO L111 eAbstractionObserver]: Analyzing ICFG list-2.i [2020-12-22 18:51:38,583 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 18:51:38,589 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 26 error locations. [2020-12-22 18:51:38,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2020-12-22 18:51:38,646 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 18:51:38,646 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 18:51:38,646 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 18:51:38,647 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 18:51:38,647 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 18:51:38,647 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 18:51:38,647 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 18:51:38,647 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 18:51:38,672 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-12-22 18:51:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 18:51:38,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:38,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:38,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1807795398, now seen corresponding path program 1 times [2020-12-22 18:51:38,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:38,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823078761] [2020-12-22 18:51:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:38,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823078761] [2020-12-22 18:51:38,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:38,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 18:51:38,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454053333] [2020-12-22 18:51:38,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 18:51:38,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:38,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 18:51:38,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 18:51:38,879 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2020-12-22 18:51:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:38,898 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2020-12-22 18:51:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 18:51:38,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-22 18:51:38,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:38,911 INFO L225 Difference]: With dead ends: 66 [2020-12-22 18:51:38,911 INFO L226 Difference]: Without dead ends: 61 [2020-12-22 18:51:38,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 18:51:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-22 18:51:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-12-22 18:51:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-22 18:51:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2020-12-22 18:51:38,955 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 7 [2020-12-22 18:51:38,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:38,955 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2020-12-22 18:51:38,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 18:51:38,956 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2020-12-22 18:51:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 18:51:38,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:38,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:38,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 18:51:38,957 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769772, now seen corresponding path program 1 times [2020-12-22 18:51:38,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:38,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482647770] [2020-12-22 18:51:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:39,048 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 18:51:39,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482647770] [2020-12-22 18:51:39,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:39,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 18:51:39,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873055617] [2020-12-22 18:51:39,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 18:51:39,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:39,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 18:51:39,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 18:51:39,061 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 4 states. [2020-12-22 18:51:39,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:39,234 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-12-22 18:51:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 18:51:39,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 18:51:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:39,236 INFO L225 Difference]: With dead ends: 68 [2020-12-22 18:51:39,236 INFO L226 Difference]: Without dead ends: 68 [2020-12-22 18:51:39,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:39,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-22 18:51:39,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2020-12-22 18:51:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-22 18:51:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2020-12-22 18:51:39,257 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 7 [2020-12-22 18:51:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:39,258 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2020-12-22 18:51:39,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 18:51:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2020-12-22 18:51:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 18:51:39,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:39,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:39,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 18:51:39,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:39,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769773, now seen corresponding path program 1 times [2020-12-22 18:51:39,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:39,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019352416] [2020-12-22 18:51:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:39,380 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 18:51:39,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019352416] [2020-12-22 18:51:39,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:39,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 18:51:39,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664442029] [2020-12-22 18:51:39,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 18:51:39,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:39,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 18:51:39,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 18:51:39,384 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 4 states. [2020-12-22 18:51:39,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:39,610 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2020-12-22 18:51:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 18:51:39,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 18:51:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:39,613 INFO L225 Difference]: With dead ends: 88 [2020-12-22 18:51:39,615 INFO L226 Difference]: Without dead ends: 88 [2020-12-22 18:51:39,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-12-22 18:51:39,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77. [2020-12-22 18:51:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-22 18:51:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2020-12-22 18:51:39,635 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 7 [2020-12-22 18:51:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:39,636 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2020-12-22 18:51:39,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 18:51:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2020-12-22 18:51:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 18:51:39,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:39,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:39,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 18:51:39,638 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1014157433, now seen corresponding path program 1 times [2020-12-22 18:51:39,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:39,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002999921] [2020-12-22 18:51:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:39,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002999921] [2020-12-22 18:51:39,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:39,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 18:51:39,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325279403] [2020-12-22 18:51:39,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:39,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:39,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:39,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:39,786 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 6 states. [2020-12-22 18:51:39,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:39,956 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2020-12-22 18:51:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 18:51:39,956 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 18:51:39,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:39,960 INFO L225 Difference]: With dead ends: 116 [2020-12-22 18:51:39,960 INFO L226 Difference]: Without dead ends: 116 [2020-12-22 18:51:39,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-22 18:51:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2020-12-22 18:51:39,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 18:51:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-12-22 18:51:39,980 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 15 [2020-12-22 18:51:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:39,981 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-12-22 18:51:39,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-12-22 18:51:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 18:51:39,982 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:39,982 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:39,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 18:51:39,982 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:39,984 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970849, now seen corresponding path program 1 times [2020-12-22 18:51:39,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:39,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864743114] [2020-12-22 18:51:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:40,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864743114] [2020-12-22 18:51:40,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:40,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:40,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854739565] [2020-12-22 18:51:40,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:40,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:40,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:40,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:40,066 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 6 states. [2020-12-22 18:51:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:40,267 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2020-12-22 18:51:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 18:51:40,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 18:51:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:40,269 INFO L225 Difference]: With dead ends: 105 [2020-12-22 18:51:40,269 INFO L226 Difference]: Without dead ends: 105 [2020-12-22 18:51:40,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 18:51:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-12-22 18:51:40,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2020-12-22 18:51:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-22 18:51:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2020-12-22 18:51:40,278 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 15 [2020-12-22 18:51:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:40,278 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2020-12-22 18:51:40,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2020-12-22 18:51:40,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 18:51:40,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:40,280 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:40,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 18:51:40,280 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:40,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2016970848, now seen corresponding path program 1 times [2020-12-22 18:51:40,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:40,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738974487] [2020-12-22 18:51:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:40,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738974487] [2020-12-22 18:51:40,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:40,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:40,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911699726] [2020-12-22 18:51:40,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:40,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:40,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:40,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:40,398 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand 6 states. [2020-12-22 18:51:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:40,752 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2020-12-22 18:51:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 18:51:40,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 18:51:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:40,754 INFO L225 Difference]: With dead ends: 106 [2020-12-22 18:51:40,754 INFO L226 Difference]: Without dead ends: 106 [2020-12-22 18:51:40,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 18:51:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-22 18:51:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 74. [2020-12-22 18:51:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-22 18:51:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-12-22 18:51:40,762 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 15 [2020-12-22 18:51:40,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:40,763 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-12-22 18:51:40,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-12-22 18:51:40,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 18:51:40,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:40,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:40,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 18:51:40,765 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:40,766 INFO L82 PathProgramCache]: Analyzing trace with hash -399914149, now seen corresponding path program 1 times [2020-12-22 18:51:40,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:40,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116082389] [2020-12-22 18:51:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:40,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116082389] [2020-12-22 18:51:40,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:40,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 18:51:40,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548104794] [2020-12-22 18:51:40,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:40,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:40,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:40,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:40,850 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 6 states. [2020-12-22 18:51:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:41,040 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2020-12-22 18:51:41,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 18:51:41,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 18:51:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:41,043 INFO L225 Difference]: With dead ends: 118 [2020-12-22 18:51:41,043 INFO L226 Difference]: Without dead ends: 118 [2020-12-22 18:51:41,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-22 18:51:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2020-12-22 18:51:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 18:51:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-12-22 18:51:41,065 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 17 [2020-12-22 18:51:41,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:41,065 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-12-22 18:51:41,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-12-22 18:51:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 18:51:41,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:41,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:41,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 18:51:41,068 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:41,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:41,068 INFO L82 PathProgramCache]: Analyzing trace with hash -399861594, now seen corresponding path program 1 times [2020-12-22 18:51:41,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:41,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567718780] [2020-12-22 18:51:41,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:41,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567718780] [2020-12-22 18:51:41,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:41,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 18:51:41,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378946642] [2020-12-22 18:51:41,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:41,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:41,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:41,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:41,165 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 6 states. [2020-12-22 18:51:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:41,397 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2020-12-22 18:51:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 18:51:41,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 18:51:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:41,398 INFO L225 Difference]: With dead ends: 101 [2020-12-22 18:51:41,399 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 18:51:41,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 18:51:41,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2020-12-22 18:51:41,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 18:51:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2020-12-22 18:51:41,412 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 17 [2020-12-22 18:51:41,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:41,415 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2020-12-22 18:51:41,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2020-12-22 18:51:41,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 18:51:41,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:41,416 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:41,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 18:51:41,417 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:41,418 INFO L82 PathProgramCache]: Analyzing trace with hash -695675823, now seen corresponding path program 1 times [2020-12-22 18:51:41,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:41,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72110953] [2020-12-22 18:51:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:41,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72110953] [2020-12-22 18:51:41,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:41,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:41,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404004977] [2020-12-22 18:51:41,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:41,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:41,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:41,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:41,556 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2020-12-22 18:51:41,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:41,722 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2020-12-22 18:51:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 18:51:41,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 18:51:41,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:41,723 INFO L225 Difference]: With dead ends: 84 [2020-12-22 18:51:41,724 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 18:51:41,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 18:51:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 18:51:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2020-12-22 18:51:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-22 18:51:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-12-22 18:51:41,728 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 17 [2020-12-22 18:51:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:41,729 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-12-22 18:51:41,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-12-22 18:51:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 18:51:41,730 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:41,730 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:41,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 18:51:41,730 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:41,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:41,731 INFO L82 PathProgramCache]: Analyzing trace with hash -695675822, now seen corresponding path program 1 times [2020-12-22 18:51:41,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:41,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924778705] [2020-12-22 18:51:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:41,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924778705] [2020-12-22 18:51:41,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:41,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:41,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122360754] [2020-12-22 18:51:41,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:41,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:41,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:41,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:41,889 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2020-12-22 18:51:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:42,133 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-12-22 18:51:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 18:51:42,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 18:51:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:42,135 INFO L225 Difference]: With dead ends: 81 [2020-12-22 18:51:42,135 INFO L226 Difference]: Without dead ends: 81 [2020-12-22 18:51:42,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 18:51:42,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-22 18:51:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2020-12-22 18:51:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-12-22 18:51:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2020-12-22 18:51:42,139 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 17 [2020-12-22 18:51:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:42,139 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2020-12-22 18:51:42,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2020-12-22 18:51:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 18:51:42,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:42,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:42,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 18:51:42,141 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-22 18:51:42,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:42,141 INFO L82 PathProgramCache]: Analyzing trace with hash 487568356, now seen corresponding path program 1 times [2020-12-22 18:51:42,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:42,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804164433] [2020-12-22 18:51:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 18:51:42,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 18:51:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 18:51:42,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 18:51:42,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 18:51:42,192 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 18:51:42,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 18:51:42,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:51:42 BoogieIcfgContainer [2020-12-22 18:51:42,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 18:51:42,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 18:51:42,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 18:51:42,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 18:51:42,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:38" (3/4) ... [2020-12-22 18:51:42,229 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 18:51:42,276 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/list-properties/list-2.i-witness.graphml [2020-12-22 18:51:42,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 18:51:42,279 INFO L168 Benchmark]: Toolchain (without parser) took 5415.84 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 126.3 MB in the beginning and 105.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 72.7 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,280 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 18:51:42,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.77 ms. Allocated memory is still 152.0 MB. Free memory was 126.1 MB in the beginning and 133.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.46 ms. Allocated memory is still 152.0 MB. Free memory was 133.8 MB in the beginning and 131.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,282 INFO L168 Benchmark]: Boogie Preprocessor took 68.18 ms. Allocated memory is still 152.0 MB. Free memory was 131.7 MB in the beginning and 130.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,282 INFO L168 Benchmark]: RCFGBuilder took 792.91 ms. Allocated memory is still 152.0 MB. Free memory was 130.1 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,283 INFO L168 Benchmark]: TraceAbstraction took 3659.53 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 104.4 MB in the beginning and 107.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,283 INFO L168 Benchmark]: Witness Printer took 50.49 ms. Allocated memory is still 202.4 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 152.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 711.77 ms. Allocated memory is still 152.0 MB. Free memory was 126.1 MB in the beginning and 133.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 124.46 ms. Allocated memory is still 152.0 MB. Free memory was 133.8 MB in the beginning and 131.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.18 ms. Allocated memory is still 152.0 MB. Free memory was 131.7 MB in the beginning and 130.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 792.91 ms. Allocated memory is still 152.0 MB. Free memory was 130.1 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3659.53 ms. Allocated memory was 152.0 MB in the beginning and 202.4 MB in the end (delta: 50.3 MB). Free memory was 104.4 MB in the beginning and 107.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. * Witness Printer took 50.49 ms. Allocated memory is still 202.4 MB. Free memory was 107.3 MB in the beginning and 105.2 MB in the end (delta: 2.1 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: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] EXPR p->h [L552] COND FALSE !(p->h == 2) [L554] EXPR p->h [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) [L558] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 66 locations, 26 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 440 SDtfs, 687 SDslu, 796 SDs, 0 SdLazy, 1132 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 194 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 7740 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 12/12 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...