/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/nla-digbench-scaling/divbin_unwindbound1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 20:09:00,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 20:09:00,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 20:09:00,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 20:09:00,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 20:09:00,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 20:09:00,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 20:09:00,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 20:09:00,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 20:09:00,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 20:09:00,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 20:09:00,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 20:09:00,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 20:09:00,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 20:09:00,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 20:09:00,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 20:09:00,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 20:09:00,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 20:09:00,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 20:09:00,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 20:09:00,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 20:09:00,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 20:09:00,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 20:09:00,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 20:09:00,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 20:09:00,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 20:09:00,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 20:09:00,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 20:09:00,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 20:09:00,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 20:09:00,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 20:09:00,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 20:09:00,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 20:09:00,647 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 20:09:00,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 20:09:00,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 20:09:00,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 20:09:00,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 20:09:00,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 20:09:00,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 20:09:00,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 20:09:00,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 20:09:00,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 20:09:00,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 20:09:00,649 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 20:09:00,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 20:09:00,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 20:09:00,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 20:09:00,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 20:09:00,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 20:09:00,955 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 20:09:00,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound1.i [2021-05-02 20:09:00,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf310909/f16f7a9c362b45b18c422d26f5ba9ce6/FLAGb890bc9a7 [2021-05-02 20:09:01,371 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 20:09:01,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound1.i [2021-05-02 20:09:01,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf310909/f16f7a9c362b45b18c422d26f5ba9ce6/FLAGb890bc9a7 [2021-05-02 20:09:01,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bf310909/f16f7a9c362b45b18c422d26f5ba9ce6 [2021-05-02 20:09:01,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 20:09:01,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 20:09:01,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 20:09:01,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 20:09:01,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 20:09:01,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e05c186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01, skipping insertion in model container [2021-05-02 20:09:01,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 20:09:01,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 20:09:01,897 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound1.i[958,971] [2021-05-02 20:09:01,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:09:01,910 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 20:09:01,918 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_unwindbound1.i[958,971] [2021-05-02 20:09:01,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:09:01,930 INFO L208 MainTranslator]: Completed translation [2021-05-02 20:09:01,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01 WrapperNode [2021-05-02 20:09:01,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 20:09:01,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 20:09:01,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 20:09:01,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 20:09:01,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (1/1) ... [2021-05-02 20:09:01,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 20:09:01,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 20:09:01,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 20:09:01,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 20:09:01,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (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 20:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 20:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 20:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 20:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 20:09:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 20:09:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 20:09:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 20:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 20:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 20:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 20:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 20:09:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 20:09:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 20:09:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 20:09:02,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 20:09:02,279 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 20:09:02,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:09:02 BoogieIcfgContainer [2021-05-02 20:09:02,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 20:09:02,281 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 20:09:02,281 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 20:09:02,281 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 20:09:02,283 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:09:02" (1/1) ... [2021-05-02 20:09:02,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:09:02 BasicIcfg [2021-05-02 20:09:02,308 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 20:09:02,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 20:09:02,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 20:09:02,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 20:09:02,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 08:09:01" (1/4) ... [2021-05-02 20:09:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8b5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:09:02, skipping insertion in model container [2021-05-02 20:09:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:09:01" (2/4) ... [2021-05-02 20:09:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8b5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:09:02, skipping insertion in model container [2021-05-02 20:09:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:09:02" (3/4) ... [2021-05-02 20:09:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b8b5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:09:02, skipping insertion in model container [2021-05-02 20:09:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:09:02" (4/4) ... [2021-05-02 20:09:02,312 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound1.iJordan [2021-05-02 20:09:02,315 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 20:09:02,319 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 20:09:02,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 20:09:02,346 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 20:09:02,346 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 20:09:02,346 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 20:09:02,346 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 20:09:02,346 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 20:09:02,346 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 20:09:02,346 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 20:09:02,346 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 20:09:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 20:09:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-02 20:09:02,366 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:09:02,367 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:09:02,367 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:09:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:09:02,370 INFO L82 PathProgramCache]: Analyzing trace with hash 35225450, now seen corresponding path program 1 times [2021-05-02 20:09:02,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:09:02,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44635058] [2021-05-02 20:09:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:09:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:02,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 20:09:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:02,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 20:09:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:02,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 20:09:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 20:09:02,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:09:02,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44635058] [2021-05-02 20:09:02,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44635058] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:09:02,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:09:02,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 20:09:02,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180001118] [2021-05-02 20:09:02,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 20:09:02,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:09:02,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 20:09:02,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:09:02,521 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:02,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:09:02,581 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-05-02 20:09:02,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 20:09:02,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-05-02 20:09:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:09:02,587 INFO L225 Difference]: With dead ends: 34 [2021-05-02 20:09:02,587 INFO L226 Difference]: Without dead ends: 29 [2021-05-02 20:09:02,588 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:09:02,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-02 20:09:02,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-05-02 20:09:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 20:09:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-05-02 20:09:02,627 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 23 [2021-05-02 20:09:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:09:02,627 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-05-02 20:09:02,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-05-02 20:09:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-02 20:09:02,628 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:09:02,628 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:09:02,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 20:09:02,629 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:09:02,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:09:02,629 INFO L82 PathProgramCache]: Analyzing trace with hash 106385839, now seen corresponding path program 1 times [2021-05-02 20:09:02,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:09:02,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095692984] [2021-05-02 20:09:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:09:02,641 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:09:02,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950723125] [2021-05-02 20:09:02,641 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 20:09:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:02,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-02 20:09:02,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:09:02,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:02,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:02,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:02,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:02,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 20:09:02,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:09:02,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095692984] [2021-05-02 20:09:02,830 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:09:02,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950723125] [2021-05-02 20:09:02,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950723125] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:09:02,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:09:02,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 20:09:02,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132334087] [2021-05-02 20:09:02,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 20:09:02,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:09:02,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 20:09:02,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 20:09:02,831 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:02,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:09:02,840 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2021-05-02 20:09:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-02 20:09:02,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2021-05-02 20:09:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:09:02,841 INFO L225 Difference]: With dead ends: 30 [2021-05-02 20:09:02,841 INFO L226 Difference]: Without dead ends: 30 [2021-05-02 20:09:02,841 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 20:09:02,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-02 20:09:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-02 20:09:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 20:09:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-05-02 20:09:02,845 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 25 [2021-05-02 20:09:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:09:02,845 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-05-02 20:09:02,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:02,846 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-05-02 20:09:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-02 20:09:02,846 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:09:02,846 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:09:03,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 20:09:03,060 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:09:03,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:09:03,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1662084126, now seen corresponding path program 1 times [2021-05-02 20:09:03,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:09:03,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669660185] [2021-05-02 20:09:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:09:03,075 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:09:03,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300291917] [2021-05-02 20:09:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:03,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 18 conjunts are in the unsatisfiable core [2021-05-02 20:09:03,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:09:03,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 20:09:03,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:09:03,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669660185] [2021-05-02 20:09:03,281 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:09:03,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300291917] [2021-05-02 20:09:03,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300291917] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:09:03,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:09:03,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-05-02 20:09:03,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906477147] [2021-05-02 20:09:03,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 20:09:03,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:09:03,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 20:09:03,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-05-02 20:09:03,283 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:09:03,406 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2021-05-02 20:09:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 20:09:03,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2021-05-02 20:09:03,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:09:03,408 INFO L225 Difference]: With dead ends: 41 [2021-05-02 20:09:03,408 INFO L226 Difference]: Without dead ends: 40 [2021-05-02 20:09:03,408 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 80.6ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-05-02 20:09:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-02 20:09:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-05-02 20:09:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 20:09:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2021-05-02 20:09:03,412 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 26 [2021-05-02 20:09:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:09:03,412 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-05-02 20:09:03,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2021-05-02 20:09:03,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-02 20:09:03,413 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:09:03,413 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:09:03,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:03,629 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:09:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:09:03,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1664227005, now seen corresponding path program 1 times [2021-05-02 20:09:03,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:09:03,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951765576] [2021-05-02 20:09:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:09:03,640 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:09:03,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963708101] [2021-05-02 20:09:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:03,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-02 20:09:03,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:09:03,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 20:09:03,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:09:03,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951765576] [2021-05-02 20:09:03,945 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:09:03,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963708101] [2021-05-02 20:09:03,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963708101] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:09:03,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:09:03,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 20:09:03,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037626047] [2021-05-02 20:09:03,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 20:09:03,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:09:03,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 20:09:03,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-05-02 20:09:03,946 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:04,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:09:04,174 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2021-05-02 20:09:04,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 20:09:04,175 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-05-02 20:09:04,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:09:04,176 INFO L225 Difference]: With dead ends: 59 [2021-05-02 20:09:04,176 INFO L226 Difference]: Without dead ends: 57 [2021-05-02 20:09:04,176 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 122.4ms TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-05-02 20:09:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-02 20:09:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 39. [2021-05-02 20:09:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 20:09:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-05-02 20:09:04,180 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 28 [2021-05-02 20:09:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:09:04,180 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-05-02 20:09:04,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:09:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-05-02 20:09:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-02 20:09:04,181 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:09:04,181 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:09:04,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:04,400 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:09:04,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:09:04,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1553698658, now seen corresponding path program 1 times [2021-05-02 20:09:04,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:09:04,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740468252] [2021-05-02 20:09:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:09:04,410 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:09:04,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738950089] [2021-05-02 20:09:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:09:04,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-02 20:09:04,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:09:04,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:09:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-02 20:09:04,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:09:04,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740468252] [2021-05-02 20:09:04,587 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:09:04,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738950089] [2021-05-02 20:09:04,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738950089] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:09:04,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:09:04,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-02 20:09:04,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775985031] [2021-05-02 20:09:04,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-02 20:09:04,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:09:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-02 20:09:04,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-02 20:09:04,589 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 20:09:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:09:04,612 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-05-02 20:09:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-02 20:09:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2021-05-02 20:09:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:09:04,613 INFO L225 Difference]: With dead ends: 20 [2021-05-02 20:09:04,613 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 20:09:04,614 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-05-02 20:09:04,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 20:09:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 20:09:04,614 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 20:09:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 20:09:04,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2021-05-02 20:09:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:09:04,614 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 20:09:04,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 20:09:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 20:09:04,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 20:09:04,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:09:04,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:09:04 BasicIcfg [2021-05-02 20:09:04,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 20:09:04,837 INFO L168 Benchmark]: Toolchain (without parser) took 3051.79 ms. Allocated memory was 218.1 MB in the beginning and 315.6 MB in the end (delta: 97.5 MB). Free memory was 183.5 MB in the beginning and 237.6 MB in the end (delta: -54.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,837 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 218.1 MB. Free memory is still 201.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 20:09:04,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.67 ms. Allocated memory is still 218.1 MB. Free memory was 183.5 MB in the beginning and 173.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,837 INFO L168 Benchmark]: Boogie Preprocessor took 63.52 ms. Allocated memory is still 218.1 MB. Free memory was 173.4 MB in the beginning and 201.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,837 INFO L168 Benchmark]: RCFGBuilder took 285.41 ms. Allocated memory is still 218.1 MB. Free memory was 201.8 MB in the beginning and 186.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,837 INFO L168 Benchmark]: IcfgTransformer took 26.65 ms. Allocated memory is still 218.1 MB. Free memory was 186.0 MB in the beginning and 184.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,838 INFO L168 Benchmark]: TraceAbstraction took 2527.93 ms. Allocated memory was 218.1 MB in the beginning and 315.6 MB in the end (delta: 97.5 MB). Free memory was 184.2 MB in the beginning and 237.6 MB in the end (delta: -53.4 MB). Peak memory consumption was 43.6 MB. Max. memory is 8.0 GB. [2021-05-02 20:09:04,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 218.1 MB. Free memory is still 201.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 142.67 ms. Allocated memory is still 218.1 MB. Free memory was 183.5 MB in the beginning and 173.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.52 ms. Allocated memory is still 218.1 MB. Free memory was 173.4 MB in the beginning and 201.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 285.41 ms. Allocated memory is still 218.1 MB. Free memory was 201.8 MB in the beginning and 186.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 26.65 ms. Allocated memory is still 218.1 MB. Free memory was 186.0 MB in the beginning and 184.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2527.93 ms. Allocated memory was 218.1 MB in the beginning and 315.6 MB in the end (delta: 97.5 MB). Free memory was 184.2 MB in the beginning and 237.6 MB in the end (delta: -53.4 MB). Peak memory consumption was 43.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2488.9ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 15.2ms, AutomataDifference: 467.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 137 SDtfs, 112 SDslu, 362 SDs, 0 SdLazy, 255 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 246.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 251.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.3ms SsaConstructionTime, 157.3ms SatisfiabilityAnalysisTime, 653.3ms InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 SizeOfPredicates, 10 NumberOfNonLiveVariables, 478 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 21/26 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...