/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/ps4-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 22:21:36,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 22:21:36,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 22:21:36,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 22:21:36,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 22:21:36,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 22:21:36,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 22:21:36,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 22:21:36,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 22:21:36,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 22:21:36,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 22:21:36,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 22:21:36,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 22:21:36,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 22:21:36,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 22:21:36,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 22:21:36,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 22:21:36,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 22:21:36,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 22:21:36,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 22:21:36,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 22:21:36,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 22:21:36,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 22:21:36,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 22:21:36,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 22:21:36,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 22:21:36,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 22:21:36,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 22:21:36,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 22:21:36,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 22:21:36,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 22:21:36,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 22:21:36,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 22:21:36,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 22:21:36,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 22:21:36,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 22:21:36,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 22:21:36,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 22:21:36,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 22:21:36,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 22:21:36,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 22:21:36,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 22:21:36,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 22:21:36,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 22:21:36,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 22:21:36,586 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 22:21:36,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 22:21:36,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 22:21:36,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 22:21:36,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 22:21:36,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 22:21:36,839 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 22:21:36,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-05-02 22:21:36,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b745db2ee/408be2e282504681a8be930cc54384e7/FLAG2c74dd8af [2021-05-02 22:21:37,232 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 22:21:37,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-05-02 22:21:37,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b745db2ee/408be2e282504681a8be930cc54384e7/FLAG2c74dd8af [2021-05-02 22:21:37,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b745db2ee/408be2e282504681a8be930cc54384e7 [2021-05-02 22:21:37,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 22:21:37,254 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 22:21:37,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 22:21:37,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 22:21:37,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 22:21:37,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f23c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37, skipping insertion in model container [2021-05-02 22:21:37,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 22:21:37,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 22:21:37,384 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/ps4-ll_valuebound1.c[458,471] [2021-05-02 22:21:37,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 22:21:37,406 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 22:21:37,418 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/ps4-ll_valuebound1.c[458,471] [2021-05-02 22:21:37,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 22:21:37,442 INFO L208 MainTranslator]: Completed translation [2021-05-02 22:21:37,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37 WrapperNode [2021-05-02 22:21:37,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 22:21:37,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 22:21:37,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 22:21:37,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 22:21:37,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 22:21:37,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 22:21:37,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 22:21:37,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 22:21:37,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 22:21:37,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 22:21:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 22:21:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 22:21:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 22:21:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 22:21:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 22:21:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 22:21:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 22:21:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 22:21:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 22:21:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2021-05-02 22:21:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 22:21:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 22:21:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 22:21:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 22:21:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 22:21:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 22:21:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 22:21:37,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 22:21:37,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 22:21:37,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 22:21:37,774 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 22:21:37,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:21:37 BoogieIcfgContainer [2021-05-02 22:21:37,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 22:21:37,775 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 22:21:37,775 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 22:21:37,776 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 22:21:37,777 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:21:37" (1/1) ... [2021-05-02 22:21:37,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 10:21:37 BasicIcfg [2021-05-02 22:21:37,805 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 22:21:37,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 22:21:37,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 22:21:37,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 22:21:37,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 10:21:37" (1/4) ... [2021-05-02 22:21:37,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0176c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 10:21:37, skipping insertion in model container [2021-05-02 22:21:37,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 10:21:37" (2/4) ... [2021-05-02 22:21:37,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0176c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 10:21:37, skipping insertion in model container [2021-05-02 22:21:37,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 10:21:37" (3/4) ... [2021-05-02 22:21:37,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0176c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 10:21:37, skipping insertion in model container [2021-05-02 22:21:37,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 10:21:37" (4/4) ... [2021-05-02 22:21:37,809 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.cJordan [2021-05-02 22:21:37,818 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 22:21:37,821 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 22:21:37,831 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 22:21:37,844 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 22:21:37,844 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 22:21:37,844 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 22:21:37,844 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 22:21:37,844 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 22:21:37,844 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 22:21:37,844 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 22:21:37,845 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 22:21:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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 22:21:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 22:21:37,859 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:21:37,860 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:21:37,860 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:21:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:21:37,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1885409022, now seen corresponding path program 1 times [2021-05-02 22:21:37,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:21:37,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824126434] [2021-05-02 22:21:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:21:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:38,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 22:21:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:38,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 22:21:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 22:21:38,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:21:38,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824126434] [2021-05-02 22:21:38,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824126434] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 22:21:38,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 22:21:38,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 22:21:38,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131378517] [2021-05-02 22:21:38,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 22:21:38,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:21:38,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 22:21:38,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 22:21:38,101 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 22:21:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:21:40,170 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-05-02 22:21:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 22:21:40,172 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-05-02 22:21:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:21:40,176 INFO L225 Difference]: With dead ends: 28 [2021-05-02 22:21:40,176 INFO L226 Difference]: Without dead ends: 23 [2021-05-02 22:21:40,177 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 22:21:40,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-02 22:21:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-05-02 22:21:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 22:21:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-05-02 22:21:40,197 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2021-05-02 22:21:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:21:40,198 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-05-02 22:21:40,198 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, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 22:21:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-05-02 22:21:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 22:21:40,198 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:21:40,198 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:21:40,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 22:21:40,199 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:21:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:21:40,199 INFO L82 PathProgramCache]: Analyzing trace with hash 603980644, now seen corresponding path program 1 times [2021-05-02 22:21:40,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:21:40,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507402303] [2021-05-02 22:21:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:21:40,225 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:21:40,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771078753] [2021-05-02 22:21:40,226 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 22:21:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:40,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 22:21:40,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:21:40,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 22:21:40,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:21:40,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507402303] [2021-05-02 22:21:40,374 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:21:40,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771078753] [2021-05-02 22:21:40,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771078753] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 22:21:40,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 22:21:40,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-02 22:21:40,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93164635] [2021-05-02 22:21:40,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 22:21:40,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:21:40,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 22:21:40,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-02 22:21:40,377 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 22:21:40,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:21:40,431 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-05-02 22:21:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 22:21:40,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-05-02 22:21:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:21:40,432 INFO L225 Difference]: With dead ends: 32 [2021-05-02 22:21:40,432 INFO L226 Difference]: Without dead ends: 30 [2021-05-02 22:21:40,433 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.4ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-02 22:21:40,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-02 22:21:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-02 22:21:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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 22:21:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-05-02 22:21:40,437 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2021-05-02 22:21:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:21:40,437 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-05-02 22:21:40,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-02 22:21:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-05-02 22:21:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-02 22:21:40,438 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:21:40,438 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] [2021-05-02 22:21:40,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 22:21:40,653 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:21:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:21:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash -169450186, now seen corresponding path program 1 times [2021-05-02 22:21:40,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:21:40,654 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104268865] [2021-05-02 22:21:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:21:40,661 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:21:40,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748640863] [2021-05-02 22:21:40,661 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 22:21:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:40,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-02 22:21:40,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:21:40,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 22:21:40,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:21:40,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104268865] [2021-05-02 22:21:40,841 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:21:40,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748640863] [2021-05-02 22:21:40,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748640863] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:21:40,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:21:40,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-02 22:21:40,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584223542] [2021-05-02 22:21:40,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-02 22:21:40,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:21:40,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-02 22:21:40,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-05-02 22:21:40,842 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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 22:21:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:21:40,927 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-05-02 22:21:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 22:21:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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 24 [2021-05-02 22:21:40,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:21:40,930 INFO L225 Difference]: With dead ends: 39 [2021-05-02 22:21:40,930 INFO L226 Difference]: Without dead ends: 38 [2021-05-02 22:21:40,931 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.7ms TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-05-02 22:21:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-02 22:21:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-05-02 22:21:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 22:21:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2021-05-02 22:21:40,941 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 24 [2021-05-02 22:21:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:21:40,942 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-05-02 22:21:40,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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 22:21:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2021-05-02 22:21:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-02 22:21:40,942 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:21:40,942 INFO L523 BasicCegarLoop]: trace histogram [3, 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 22:21:41,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:21:41,157 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:21:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:21:41,157 INFO L82 PathProgramCache]: Analyzing trace with hash -434891502, now seen corresponding path program 1 times [2021-05-02 22:21:41,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:21:41,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390887434] [2021-05-02 22:21:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:21:41,165 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:21:41,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994136303] [2021-05-02 22:21:41,165 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 22:21:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 22:21:41,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 22:21:41,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:21:41,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 22:21:41,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:21:41,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390887434] [2021-05-02 22:21:41,385 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:21:41,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994136303] [2021-05-02 22:21:41,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994136303] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 22:21:41,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 22:21:41,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-05-02 22:21:41,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912284900] [2021-05-02 22:21:41,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 22:21:41,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:21:41,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 22:21:41,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-02 22:21:41,387 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 22:21:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:21:41,458 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-05-02 22:21:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 22:21:41,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2021-05-02 22:21:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:21:41,459 INFO L225 Difference]: With dead ends: 42 [2021-05-02 22:21:41,459 INFO L226 Difference]: Without dead ends: 37 [2021-05-02 22:21:41,460 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 56.0ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-02 22:21:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-02 22:21:41,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-05-02 22:21:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 22:21:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-05-02 22:21:41,462 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 30 [2021-05-02 22:21:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:21:41,463 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-05-02 22:21:41,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 22:21:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-05-02 22:21:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-02 22:21:41,463 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 22:21:41,463 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 22:21:41,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:21:41,677 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 22:21:41,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 22:21:41,677 INFO L82 PathProgramCache]: Analyzing trace with hash -570969308, now seen corresponding path program 2 times [2021-05-02 22:21:41,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 22:21:41,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184885598] [2021-05-02 22:21:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 22:21:41,684 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 22:21:41,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917344493] [2021-05-02 22:21:41,685 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 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 22:21:41,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 22:21:41,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 22:21:41,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-02 22:21:41,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 22:21:41,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 22:21:41,853 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 22:21:41,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 22:21:41,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184885598] [2021-05-02 22:21:41,853 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 22:21:41,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917344493] [2021-05-02 22:21:41,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917344493] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 22:21:41,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 22:21:41,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-02 22:21:41,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111339067] [2021-05-02 22:21:41,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 22:21:41,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 22:21:41,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 22:21:41,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-02 22:21:41,858 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 22:21:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 22:21:41,882 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2021-05-02 22:21:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 22:21:41,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2021-05-02 22:21:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 22:21:41,883 INFO L225 Difference]: With dead ends: 26 [2021-05-02 22:21:41,883 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 22:21:41,884 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-02 22:21:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 22:21:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 22:21:41,884 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 22:21:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 22:21:41,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-05-02 22:21:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 22:21:41,884 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 22:21:41,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 22:21:41,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 22:21:41,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 22:21:42,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 22:21:42,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 10:21:42 BasicIcfg [2021-05-02 22:21:42,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 22:21:42,093 INFO L168 Benchmark]: Toolchain (without parser) took 4839.62 ms. Allocated memory was 228.6 MB in the beginning and 290.5 MB in the end (delta: 61.9 MB). Free memory was 193.5 MB in the beginning and 246.4 MB in the end (delta: -52.9 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,094 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 228.6 MB. Free memory is still 210.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 22:21:42,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.66 ms. Allocated memory is still 228.6 MB. Free memory was 193.3 MB in the beginning and 183.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,094 INFO L168 Benchmark]: Boogie Preprocessor took 35.94 ms. Allocated memory is still 228.6 MB. Free memory was 183.5 MB in the beginning and 211.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,096 INFO L168 Benchmark]: RCFGBuilder took 294.63 ms. Allocated memory is still 228.6 MB. Free memory was 211.4 MB in the beginning and 197.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,097 INFO L168 Benchmark]: IcfgTransformer took 29.34 ms. Allocated memory is still 228.6 MB. Free memory was 197.5 MB in the beginning and 196.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,097 INFO L168 Benchmark]: TraceAbstraction took 4287.51 ms. Allocated memory was 228.6 MB in the beginning and 290.5 MB in the end (delta: 61.9 MB). Free memory was 195.7 MB in the beginning and 246.4 MB in the end (delta: -50.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. [2021-05-02 22:21:42,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 228.6 MB. Free memory is still 210.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 185.66 ms. Allocated memory is still 228.6 MB. Free memory was 193.3 MB in the beginning and 183.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.94 ms. Allocated memory is still 228.6 MB. Free memory was 183.5 MB in the beginning and 211.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 294.63 ms. Allocated memory is still 228.6 MB. Free memory was 211.4 MB in the beginning and 197.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 29.34 ms. Allocated memory is still 228.6 MB. Free memory was 197.5 MB in the beginning and 196.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4287.51 ms. Allocated memory was 228.6 MB in the beginning and 290.5 MB in the end (delta: 61.9 MB). Free memory was 195.7 MB in the beginning and 246.4 MB in the end (delta: -50.7 MB). Peak memory consumption was 11.8 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, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4246.7ms, OverallIterations: 5, TraceHistogramMax: 3, EmptinessCheckTime: 9.9ms, AutomataDifference: 2332.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 113 SDtfs, 48 SDslu, 397 SDs, 0 SdLazy, 191 SolverSat, 17 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2167.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 222.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 28.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.6ms SsaConstructionTime, 119.9ms SatisfiabilityAnalysisTime, 629.4ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 10 NumberOfNonLiveVariables, 486 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 25/30 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...