/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 18:23:03,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 18:23:03,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 18:23:03,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 18:23:03,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 18:23:03,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 18:23:03,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 18:23:03,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 18:23:03,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 18:23:03,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 18:23:03,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 18:23:03,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 18:23:03,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 18:23:03,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 18:23:03,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 18:23:03,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 18:23:03,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 18:23:03,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 18:23:03,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 18:23:03,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 18:23:03,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 18:23:03,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 18:23:03,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 18:23:03,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 18:23:03,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 18:23:03,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 18:23:03,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 18:23:03,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 18:23:03,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 18:23:03,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 18:23:03,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 18:23:03,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 18:23:03,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 18:23:03,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 18:23:03,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 18:23:03,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 18:23:03,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 18:23:03,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 18:23:03,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 18:23:03,987 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 18:23:03,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 18:23:03,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 18:23:03,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 18:23:03,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 18:23:03,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 18:23:03,990 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 18:23:03,990 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 18:23:04,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 18:23:04,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 18:23:04,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 18:23:04,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 18:23:04,278 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 18:23:04,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-05-02 18:23:04,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7b0c2d0/41d019fdf47b418b808ed23b6d2cbf57/FLAGf41366d04 [2021-05-02 18:23:04,745 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 18:23:04,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-05-02 18:23:04,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7b0c2d0/41d019fdf47b418b808ed23b6d2cbf57/FLAGf41366d04 [2021-05-02 18:23:04,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7b0c2d0/41d019fdf47b418b808ed23b6d2cbf57 [2021-05-02 18:23:04,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 18:23:04,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 18:23:04,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 18:23:04,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 18:23:04,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 18:23:04,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:23:04" (1/1) ... [2021-05-02 18:23:04,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccf77bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:04, skipping insertion in model container [2021-05-02 18:23:04,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:23:04" (1/1) ... [2021-05-02 18:23:04,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 18:23:04,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 18:23:05,068 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-05-02 18:23:05,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:23:05,105 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 18:23:05,163 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-05-02 18:23:05,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:23:05,177 INFO L208 MainTranslator]: Completed translation [2021-05-02 18:23:05,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05 WrapperNode [2021-05-02 18:23:05,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 18:23:05,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 18:23:05,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 18:23:05,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 18:23:05,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (1/1) ... [2021-05-02 18:23:05,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 18:23:05,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 18:23:05,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 18:23:05,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 18:23:05,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (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 [2021-05-02 18:23:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 18:23:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 18:23:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 18:23:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 18:23:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 18:23:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 18:23:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 18:23:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-02 18:23:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 18:23:06,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 18:23:06,077 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-02 18:23:06,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:06 BoogieIcfgContainer [2021-05-02 18:23:06,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 18:23:06,079 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 18:23:06,079 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 18:23:06,080 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 18:23:06,081 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:06" (1/1) ... [2021-05-02 18:23:06,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:23:06 BasicIcfg [2021-05-02 18:23:06,101 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 18:23:06,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 18:23:06,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 18:23:06,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 18:23:06,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 06:23:04" (1/4) ... [2021-05-02 18:23:06,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5faa86c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:23:06, skipping insertion in model container [2021-05-02 18:23:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:05" (2/4) ... [2021-05-02 18:23:06,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5faa86c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:23:06, skipping insertion in model container [2021-05-02 18:23:06,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:06" (3/4) ... [2021-05-02 18:23:06,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5faa86c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:23:06, skipping insertion in model container [2021-05-02 18:23:06,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:23:06" (4/4) ... [2021-05-02 18:23:06,108 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.cJordan [2021-05-02 18:23:06,112 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 18:23:06,115 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 18:23:06,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 18:23:06,139 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 18:23:06,140 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 18:23:06,140 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 18:23:06,140 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 18:23:06,140 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 18:23:06,140 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 18:23:06,140 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 18:23:06,140 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 18:23:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-02 18:23:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-02 18:23:06,157 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:06,159 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:06,159 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:06,167 INFO L82 PathProgramCache]: Analyzing trace with hash 542394869, now seen corresponding path program 1 times [2021-05-02 18:23:06,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:06,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238652131] [2021-05-02 18:23:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:06,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:06,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238652131] [2021-05-02 18:23:06,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238652131] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:23:06,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:23:06,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-02 18:23:06,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132407151] [2021-05-02 18:23:06,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-02 18:23:06,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:06,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-02 18:23:06,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-02 18:23:06,931 INFO L87 Difference]: Start difference. First operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:07,194 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-02 18:23:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:07,855 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2021-05-02 18:23:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-02 18:23:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-05-02 18:23:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:07,861 INFO L225 Difference]: With dead ends: 85 [2021-05-02 18:23:07,861 INFO L226 Difference]: Without dead ends: 57 [2021-05-02 18:23:07,862 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 550.1ms TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-05-02 18:23:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-02 18:23:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2021-05-02 18:23:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-05-02 18:23:07,883 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2021-05-02 18:23:07,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:07,884 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-05-02 18:23:07,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-05-02 18:23:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-02 18:23:07,885 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:07,885 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:07,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 18:23:07,885 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:07,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:07,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1761345441, now seen corresponding path program 1 times [2021-05-02 18:23:07,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:07,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832120972] [2021-05-02 18:23:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:08,353 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-02 18:23:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:08,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:08,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832120972] [2021-05-02 18:23:08,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832120972] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:08,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600063448] [2021-05-02 18:23:08,362 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 [2021-05-02 18:23:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:08,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-02 18:23:08,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:23:08,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:08,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600063448] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:08,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:23:08,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14] total 20 [2021-05-02 18:23:08,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110332653] [2021-05-02 18:23:08,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-02 18:23:08,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:08,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-02 18:23:08,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-05-02 18:23:08,892 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:09,654 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2021-05-02 18:23:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-02 18:23:09,654 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-02 18:23:09,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:09,655 INFO L225 Difference]: With dead ends: 62 [2021-05-02 18:23:09,655 INFO L226 Difference]: Without dead ends: 62 [2021-05-02 18:23:09,656 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 577.2ms TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2021-05-02 18:23:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-05-02 18:23:09,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2021-05-02 18:23:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2021-05-02 18:23:09,659 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 53 [2021-05-02 18:23:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:09,660 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2021-05-02 18:23:09,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 19 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2021-05-02 18:23:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-02 18:23:09,661 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:09,661 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:09,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 18:23:09,877 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:09,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1016577077, now seen corresponding path program 2 times [2021-05-02 18:23:09,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:09,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87537255] [2021-05-02 18:23:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:10,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:10,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:10,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87537255] [2021-05-02 18:23:10,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87537255] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:10,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315777587] [2021-05-02 18:23:10,310 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 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 [2021-05-02 18:23:11,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 18:23:11,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 18:23:11,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-02 18:23:11,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:23:11,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:11,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315777587] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:11,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:23:11,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 21 [2021-05-02 18:23:11,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469227154] [2021-05-02 18:23:11,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-02 18:23:11,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:11,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-02 18:23:11,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-05-02 18:23:11,369 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 21 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 20 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:12,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:12,251 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-05-02 18:23:12,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-02 18:23:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 20 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2021-05-02 18:23:12,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:12,256 INFO L225 Difference]: With dead ends: 67 [2021-05-02 18:23:12,256 INFO L226 Difference]: Without dead ends: 67 [2021-05-02 18:23:12,256 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 573.6ms TimeCoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2021-05-02 18:23:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-05-02 18:23:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-05-02 18:23:12,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-05-02 18:23:12,272 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 58 [2021-05-02 18:23:12,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:12,273 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-05-02 18:23:12,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5714285714285716) internal successors, (75), 20 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:23:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-05-02 18:23:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-02 18:23:12,276 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:12,276 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:12,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:23:12,485 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:12,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1571949025, now seen corresponding path program 3 times [2021-05-02 18:23:12,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:12,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133953766] [2021-05-02 18:23:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:12,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:12,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:12,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133953766] [2021-05-02 18:23:12,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133953766] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:12,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124884168] [2021-05-02 18:23:12,903 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 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 [2021-05-02 18:23:15,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-02 18:23:15,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 18:23:15,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 119 conjunts are in the unsatisfiable core [2021-05-02 18:23:15,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:23:15,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:15,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:16,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-02 18:23:17,925 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2021-05-02 18:23:17,926 INFO L354 Elim1Store]: treesize reduction 24, result has 92.9 percent of original size [2021-05-02 18:23:17,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 154 treesize of output 348 [2021-05-02 18:23:17,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:17,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-02 18:23:18,201 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2021-05-02 18:23:18,202 INFO L628 ElimStorePlain]: treesize reduction 40, result has 87.1 percent of original size [2021-05-02 18:23:18,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-05-02 18:23:18,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:166, output treesize:121 [2021-05-02 18:23:18,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:23:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-02 18:23:18,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124884168] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:23:18,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:23:18,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 26] total 45 [2021-05-02 18:23:18,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162844348] [2021-05-02 18:23:18,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-02 18:23:18,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:18,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-02 18:23:18,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1807, Unknown=0, NotChecked=0, Total=1980 [2021-05-02 18:23:18,757 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 44 states have internal predecessors, (114), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 18:23:19,142 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-02 18:23:21,202 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-05-02 18:23:21,694 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 80 [2021-05-02 18:23:22,199 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 78 [2021-05-02 18:23:22,675 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 77 [2021-05-02 18:23:23,171 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-05-02 18:23:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:23,259 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2021-05-02 18:23:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-02 18:23:23,260 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 44 states have internal predecessors, (114), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2021-05-02 18:23:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:23,260 INFO L225 Difference]: With dead ends: 69 [2021-05-02 18:23:23,260 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 18:23:23,262 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 5390.4ms TimeCoverageRelationStatistics Valid=625, Invalid=5227, Unknown=0, NotChecked=0, Total=5852 [2021-05-02 18:23:23,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 18:23:23,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 18:23:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-02 18:23:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 18:23:23,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2021-05-02 18:23:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:23,262 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 18:23:23,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.533333333333333) internal successors, (114), 44 states have internal predecessors, (114), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 18:23:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 18:23:23,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 18:23:23,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:23:23,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:23:23 BasicIcfg [2021-05-02 18:23:23,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 18:23:23,481 INFO L168 Benchmark]: Toolchain (without parser) took 18701.60 ms. Allocated memory was 194.0 MB in the beginning and 386.9 MB in the end (delta: 192.9 MB). Free memory was 159.4 MB in the beginning and 353.2 MB in the end (delta: -193.8 MB). Peak memory consumption was 560.5 kB. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 194.0 MB. Free memory was 177.2 MB in the beginning and 177.1 MB in the end (delta: 106.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.78 ms. Allocated memory is still 194.0 MB. Free memory was 159.2 MB in the beginning and 171.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: Boogie Preprocessor took 50.53 ms. Allocated memory is still 194.0 MB. Free memory was 171.0 MB in the beginning and 166.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: RCFGBuilder took 849.34 ms. Allocated memory is still 194.0 MB. Free memory was 166.2 MB in the beginning and 123.2 MB in the end (delta: 43.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: IcfgTransformer took 22.34 ms. Allocated memory is still 194.0 MB. Free memory was 123.2 MB in the beginning and 121.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:23,481 INFO L168 Benchmark]: TraceAbstraction took 17377.99 ms. Allocated memory was 194.0 MB in the beginning and 386.9 MB in the end (delta: 192.9 MB). Free memory was 120.6 MB in the beginning and 353.2 MB in the end (delta: -232.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 18:23:23,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 194.0 MB. Free memory was 177.2 MB in the beginning and 177.1 MB in the end (delta: 106.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 395.78 ms. Allocated memory is still 194.0 MB. Free memory was 159.2 MB in the beginning and 171.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.53 ms. Allocated memory is still 194.0 MB. Free memory was 171.0 MB in the beginning and 166.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 849.34 ms. Allocated memory is still 194.0 MB. Free memory was 166.2 MB in the beginning and 123.2 MB in the end (delta: 43.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * IcfgTransformer took 22.34 ms. Allocated memory is still 194.0 MB. Free memory was 123.2 MB in the beginning and 121.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17377.99 ms. Allocated memory was 194.0 MB in the beginning and 386.9 MB in the end (delta: 192.9 MB). Free memory was 120.6 MB in the beginning and 353.2 MB in the end (delta: -232.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17339.3ms, OverallIterations: 4, TraceHistogramMax: 4, EmptinessCheckTime: 13.1ms, AutomataDifference: 7096.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 121 SDtfs, 376 SDslu, 1724 SDs, 0 SdLazy, 3310 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2479.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 151 SyntacticMatches, 6 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1511 ImplicationChecksByTransitivity, 7091.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 147.5ms SsaConstructionTime, 3639.1ms SatisfiabilityAnalysisTime, 5457.4ms InterpolantComputationTime, 396 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 55 QuantifiedInterpolants, 7989 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2677 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 11/76 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...