/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/ps6-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 22:42:41,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 22:42:41,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 22:42:41,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 22:42:41,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 22:42:41,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 22:42:41,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 22:42:41,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 22:42:41,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 22:42:41,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 22:42:41,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 22:42:41,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 22:42:41,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 22:42:41,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 22:42:41,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 22:42:41,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 22:42:41,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 22:42:41,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 22:42:41,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 22:42:41,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 22:42:41,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 22:42:41,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 22:42:41,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 22:42:41,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 22:42:41,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 22:42:41,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 22:42:41,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 22:42:41,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 22:42:41,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 22:42:41,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 22:42:41,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 22:42:41,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 22:42:41,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 22:42:41,732 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 22:42:41,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 22:42:41,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 22:42:41,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 22:42:41,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 22:42:41,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 22:42:41,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 22:42:41,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 22:42:41,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 22:42:41,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 22:42:41,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 22:42:41,734 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 22:42:41,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 22:42:42,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 22:42:42,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 22:42:42,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 22:42:42,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 22:42:42,057 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 22:42:42,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_valuebound1.c [2021-05-02 22:42:42,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3908328/91e00319f4f441e7b61e64df5f250312/FLAG94223ba77 [2021-05-02 22:42:42,539 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 22:42:42,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_valuebound1.c [2021-05-02 22:42:42,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3908328/91e00319f4f441e7b61e64df5f250312/FLAG94223ba77 [2021-05-02 22:42:43,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3908328/91e00319f4f441e7b61e64df5f250312 [2021-05-02 22:42:43,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 22:42:43,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 22:42:43,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 22:42:43,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 22:42:43,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 22:42:43,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3a8e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43, skipping insertion in model container [2021-05-02 22:42:43,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 22:42:43,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 22:42:43,134 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/ps6-ll_valuebound1.c[458,471] [2021-05-02 22:42:43,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 22:42:43,150 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 22:42:43,157 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/ps6-ll_valuebound1.c[458,471] [2021-05-02 22:42:43,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 22:42:43,210 INFO L208 MainTranslator]: Completed translation [2021-05-02 22:42:43,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43 WrapperNode [2021-05-02 22:42:43,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 22:42:43,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 22:42:43,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 22:42:43,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 22:42:43,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 22:42:43,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 22:42:43,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 22:42:43,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 22:42:43,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (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 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 22:42:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 22:42:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 22:42:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 22:42:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 22:42:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 22:42:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 22:42:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 22:42:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 22:42:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 22:42:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 22:42:43,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 22:42:43,535 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 22:42:43,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:42:43 BoogieIcfgContainer [2021-05-02 22:42:43,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 22:42:43,536 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 22:42:43,536 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 22:42:43,537 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 22:42:43,538 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:42:43" (1/1) ... [2021-05-02 22:42:43,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 10:42:43 BasicIcfg [2021-05-02 22:42:43,551 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 22:42:43,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 22:42:43,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 22:42:43,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 22:42:43,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 10:42:43" (1/4) ... [2021-05-02 22:42:43,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcb4924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 10:42:43, skipping insertion in model container [2021-05-02 22:42:43,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:42:43" (2/4) ... [2021-05-02 22:42:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcb4924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 10:42:43, skipping insertion in model container [2021-05-02 22:42:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:42:43" (3/4) ... [2021-05-02 22:42:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcb4924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 10:42:43, skipping insertion in model container [2021-05-02 22:42:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 10:42:43" (4/4) ... [2021-05-02 22:42:43,556 INFO L111 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound1.cJordan [2021-05-02 22:42:43,559 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 22:42:43,562 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 22:42:43,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 22:42:43,584 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 22:42:43,584 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 22:42:43,584 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 22:42:43,584 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 22:42:43,584 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 22:42:43,584 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 22:42:43,584 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 22:42:43,584 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 22:42:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 22:42:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-02 22:42:43,597 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:42:43,597 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:42:43,597 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:42:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:42:43,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1187991702, now seen corresponding path program 1 times [2021-05-02 22:42:43,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:42:43,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664517188] [2021-05-02 22:42:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:42:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:43,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 22:42:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:43,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 22:42:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:43,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 22:42:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:43,736 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 22:42:43,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:42:43,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664517188] [2021-05-02 22:42:43,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664517188] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 22:42:43,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 22:42:43,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 22:42:43,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137011548] [2021-05-02 22:42:43,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 22:42:43,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:42:43,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 22:42:43,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 22:42:43,750 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 22:42:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:42:45,884 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-05-02 22:42:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 22:42:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 22 [2021-05-02 22:42:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:42:45,891 INFO L225 Difference]: With dead ends: 29 [2021-05-02 22:42:45,891 INFO L226 Difference]: Without dead ends: 24 [2021-05-02 22:42:45,892 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 22:42:45,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-02 22:42:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-02 22:42:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 22:42:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-05-02 22:42:45,946 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 22 [2021-05-02 22:42:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:42:45,947 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-05-02 22:42:45,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 22:42:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-05-02 22:42:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-02 22:42:45,959 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:42:45,959 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:42:45,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 22:42:45,960 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:42:45,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:42:45,960 INFO L82 PathProgramCache]: Analyzing trace with hash 793962506, now seen corresponding path program 1 times [2021-05-02 22:42:45,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:42:45,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497701865] [2021-05-02 22:42:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:42:45,991 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:42:45,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045847942] [2021-05-02 22:42:45,993 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 22:42:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:46,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 22:42:46,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:42:46,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:46,169 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 22:42:46,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:42:46,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497701865] [2021-05-02 22:42:46,170 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:42:46,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045847942] [2021-05-02 22:42:46,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045847942] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:42:46,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:42:46,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-02 22:42:46,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580336483] [2021-05-02 22:42:46,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 22:42:46,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:42:46,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 22:42:46,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-02 22:42:46,172 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 22:42:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:42:48,252 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-05-02 22:42:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 22:42:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-05-02 22:42:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:42:48,253 INFO L225 Difference]: With dead ends: 33 [2021-05-02 22:42:48,253 INFO L226 Difference]: Without dead ends: 31 [2021-05-02 22:42:48,254 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-02 22:42:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-02 22:42:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-02 22:42:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 22:42:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-05-02 22:42:48,258 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 22 [2021-05-02 22:42:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:42:48,258 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-05-02 22:42:48,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-02 22:42:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-05-02 22:42:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-02 22:42:48,259 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:42:48,259 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:42:48,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 22:42:48,475 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:42:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:42:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash -503871754, now seen corresponding path program 1 times [2021-05-02 22:42:48,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:42:48,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046000033] [2021-05-02 22:42:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:42:48,485 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:42:48,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590821367] [2021-05-02 22:42:48,486 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 22:42:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:48,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-02 22:42:48,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:42:48,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 22:42:48,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:42:48,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046000033] [2021-05-02 22:42:48,606 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:42:48,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590821367] [2021-05-02 22:42:48,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590821367] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:42:48,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:42:48,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-02 22:42:48,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919633090] [2021-05-02 22:42:48,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-02 22:42:48,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:42:48,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-02 22:42:48,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-05-02 22:42:48,607 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 22:42:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:42:48,674 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2021-05-02 22:42:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 22:42:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-05-02 22:42:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:42:48,675 INFO L225 Difference]: With dead ends: 40 [2021-05-02 22:42:48,675 INFO L226 Difference]: Without dead ends: 40 [2021-05-02 22:42:48,675 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.4ms TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-05-02 22:42:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-02 22:42:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-05-02 22:42:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 22:42:48,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2021-05-02 22:42:48,679 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2021-05-02 22:42:48,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:42:48,679 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2021-05-02 22:42:48,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-02 22:42:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2021-05-02 22:42:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-02 22:42:48,680 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:42:48,680 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:42:48,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:42:48,896 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:42:48,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:42:48,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1813677706, now seen corresponding path program 2 times [2021-05-02 22:42:48,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:42:48,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823935319] [2021-05-02 22:42:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:42:48,908 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:42:48,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708056309] [2021-05-02 22:42:48,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:42:48,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 22:42:48,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 22:42:48,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-02 22:42:48,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:42:48,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:48,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:48,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:48,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-02 22:42:49,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:42:49,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823935319] [2021-05-02 22:42:49,070 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:42:49,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708056309] [2021-05-02 22:42:49,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708056309] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:42:49,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:42:49,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-02 22:42:49,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919424213] [2021-05-02 22:42:49,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 22:42:49,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:42:49,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 22:42:49,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-02 22:42:49,072 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 22:42:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:42:49,103 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2021-05-02 22:42:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 22:42:49,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 36 [2021-05-02 22:42:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:42:49,105 INFO L225 Difference]: With dead ends: 37 [2021-05-02 22:42:49,105 INFO L226 Difference]: Without dead ends: 35 [2021-05-02 22:42:49,105 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-02 22:42:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-02 22:42:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-05-02 22:42:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 22:42:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-05-02 22:42:49,108 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 36 [2021-05-02 22:42:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:42:49,108 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-05-02 22:42:49,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 22:42:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-05-02 22:42:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 22:42:49,109 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:42:49,109 INFO L523 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:42:49,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:42:49,325 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:42:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:42:49,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1285656823, now seen corresponding path program 1 times [2021-05-02 22:42:49,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:42:49,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605281707] [2021-05-02 22:42:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:42:49,333 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:42:49,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590483535] [2021-05-02 22:42:49,334 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 22:42:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:42:49,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 22:42:49,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:42:49,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:42:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-05-02 22:42:49,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:42:49,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605281707] [2021-05-02 22:42:49,548 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:42:49,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590483535] [2021-05-02 22:42:49,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590483535] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:42:49,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:42:49,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-05-02 22:42:49,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474880091] [2021-05-02 22:42:49,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 22:42:49,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:42:49,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 22:42:49,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-02 22:42:49,550 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-02 22:42:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:42:49,607 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-05-02 22:42:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 22:42:49,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 40 [2021-05-02 22:42:49,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:42:49,608 INFO L225 Difference]: With dead ends: 33 [2021-05-02 22:42:49,608 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 22:42:49,608 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-02 22:42:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 22:42:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 22:42:49,609 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 22:42:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 22:42:49,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-05-02 22:42:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:42:49,609 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 22:42:49,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-02 22:42:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 22:42:49,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 22:42:49,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:42:49,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 10:42:49 BasicIcfg [2021-05-02 22:42:49,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 22:42:49,830 INFO L168 Benchmark]: Toolchain (without parser) took 6815.79 ms. Allocated memory was 247.5 MB in the beginning and 371.2 MB in the end (delta: 123.7 MB). Free memory was 212.9 MB in the beginning and 323.4 MB in the end (delta: -110.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 247.5 MB. Free memory is still 229.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.87 ms. Allocated memory is still 247.5 MB. Free memory was 212.8 MB in the beginning and 231.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: Boogie Preprocessor took 19.32 ms. Allocated memory is still 247.5 MB. Free memory was 231.3 MB in the beginning and 229.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: RCFGBuilder took 304.84 ms. Allocated memory is still 247.5 MB. Free memory was 229.5 MB in the beginning and 215.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: IcfgTransformer took 14.67 ms. Allocated memory is still 247.5 MB. Free memory was 215.3 MB in the beginning and 213.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,830 INFO L168 Benchmark]: TraceAbstraction took 6277.35 ms. Allocated memory was 247.5 MB in the beginning and 371.2 MB in the end (delta: 123.7 MB). Free memory was 213.4 MB in the beginning and 323.4 MB in the end (delta: -110.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2021-05-02 22:42:49,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 247.5 MB. Free memory is still 229.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 191.87 ms. Allocated memory is still 247.5 MB. Free memory was 212.8 MB in the beginning and 231.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.32 ms. Allocated memory is still 247.5 MB. Free memory was 231.3 MB in the beginning and 229.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 304.84 ms. Allocated memory is still 247.5 MB. Free memory was 229.5 MB in the beginning and 215.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 14.67 ms. Allocated memory is still 247.5 MB. Free memory was 215.3 MB in the beginning and 213.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6277.35 ms. Allocated memory was 247.5 MB in the beginning and 371.2 MB in the end (delta: 123.7 MB). Free memory was 213.4 MB in the beginning and 323.4 MB in the end (delta: -110.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6244.0ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 20.5ms, AutomataDifference: 4394.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119 SDtfs, 47 SDslu, 387 SDs, 0 SdLazy, 222 SolverSat, 23 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4234.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 174.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 45.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.7ms SsaConstructionTime, 119.7ms SatisfiabilityAnalysisTime, 511.3ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 11 NumberOfNonLiveVariables, 531 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 43/60 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...