/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-6253b08 [2021-05-06 10:42:59,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 10:42:59,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 10:42:59,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 10:42:59,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 10:42:59,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 10:42:59,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 10:42:59,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 10:42:59,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 10:42:59,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 10:42:59,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 10:42:59,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 10:42:59,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 10:42:59,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 10:42:59,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 10:42:59,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 10:42:59,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 10:42:59,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 10:42:59,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 10:42:59,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 10:42:59,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 10:42:59,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 10:42:59,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 10:42:59,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 10:42:59,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 10:42:59,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 10:42:59,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 10:42:59,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 10:42:59,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 10:42:59,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 10:42:59,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 10:42:59,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 10:42:59,592 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 10:42:59,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 10:42:59,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 10:42:59,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 10:42:59,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 10:42:59,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 10:42:59,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 10:42:59,594 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 10:42:59,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 10:42:59,594 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 10:42:59,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 10:42:59,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 10:42:59,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 10:42:59,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 10:42:59,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 10:42:59,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 10:42:59,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 10:42:59,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 10:42:59,597 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 10:42:59,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 10:43:00,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 10:43:00,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 10:43:00,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 10:43:00,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 10:43:00,255 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 10:43:00,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_valuebound1.c [2021-05-06 10:43:00,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aa605df/9b8c009a3e15418d9f6fa34f7085112c/FLAG248dbcc9b [2021-05-06 10:43:01,146 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 10:43:01,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps6-ll_valuebound1.c [2021-05-06 10:43:01,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aa605df/9b8c009a3e15418d9f6fa34f7085112c/FLAG248dbcc9b [2021-05-06 10:43:01,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64aa605df/9b8c009a3e15418d9f6fa34f7085112c [2021-05-06 10:43:01,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 10:43:01,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 10:43:01,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 10:43:01,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 10:43:01,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 10:43:01,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 10:43:01" (1/1) ... [2021-05-06 10:43:01,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d338338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:01, skipping insertion in model container [2021-05-06 10:43:01,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 10:43:01" (1/1) ... [2021-05-06 10:43:01,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 10:43:01,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 10:43:01,794 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] [2021-05-06 10:43:01,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 10:43:01,918 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 10:43:01,959 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] [2021-05-06 10:43:01,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 10:43:02,004 INFO L208 MainTranslator]: Completed translation [2021-05-06 10:43:02,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02 WrapperNode [2021-05-06 10:43:02,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 10:43:02,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 10:43:02,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 10:43:02,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 10:43:02,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 10:43:02,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 10:43:02,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 10:43:02,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 10:43:02,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (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 [2021-05-06 10:43:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 10:43:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 10:43:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 10:43:02,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 10:43:02,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 10:43:02,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 10:43:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 10:43:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 10:43:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 10:43:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 10:43:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2021-05-06 10:43:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 10:43:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 10:43:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 10:43:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 10:43:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 10:43:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 10:43:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 10:43:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 10:43:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 10:43:02,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 10:43:02,725 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 10:43:02,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:43:02 BoogieIcfgContainer [2021-05-06 10:43:02,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 10:43:02,727 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 10:43:02,727 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 10:43:02,728 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 10:43:02,730 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:43:02" (1/1) ... [2021-05-06 10:43:02,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 10:43:02 BasicIcfg [2021-05-06 10:43:02,767 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 10:43:02,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 10:43:02,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 10:43:02,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 10:43:02,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 10:43:01" (1/4) ... [2021-05-06 10:43:02,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e844f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 10:43:02, skipping insertion in model container [2021-05-06 10:43:02,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:43:02" (2/4) ... [2021-05-06 10:43:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e844f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 10:43:02, skipping insertion in model container [2021-05-06 10:43:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:43:02" (3/4) ... [2021-05-06 10:43:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e844f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 10:43:02, skipping insertion in model container [2021-05-06 10:43:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 10:43:02" (4/4) ... [2021-05-06 10:43:02,791 INFO L111 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound1.cJordan [2021-05-06 10:43:02,796 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 10:43:02,799 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 10:43:02,852 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 10:43:02,906 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 10:43:02,906 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 10:43:02,906 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 10:43:02,906 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 10:43:02,906 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 10:43:02,906 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 10:43:02,906 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 10:43:02,906 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 10:43:02,941 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) [2021-05-06 10:43:02,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-06 10:43:02,949 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:43:02,949 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:43:02,950 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:43:02,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:43:02,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1187991702, now seen corresponding path program 1 times [2021-05-06 10:43:02,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:43:02,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350742802] [2021-05-06 10:43:02,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:43:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:03,393 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-06 10:43:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 10:43:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 10:43:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:03,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-06 10:43:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 10:43:03,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:43:03,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350742802] [2021-05-06 10:43:03,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350742802] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 10:43:03,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 10:43:03,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 10:43:03,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963094574] [2021-05-06 10:43:03,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 10:43:03,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:43:03,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 10:43:03,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 10:43:03,518 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) [2021-05-06 10:43:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:43:03,705 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-05-06 10:43:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 10:43:03,712 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 [2021-05-06 10:43:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:43:03,731 INFO L225 Difference]: With dead ends: 29 [2021-05-06 10:43:03,732 INFO L226 Difference]: Without dead ends: 24 [2021-05-06 10:43:03,733 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 110.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 10:43:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-06 10:43:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-06 10:43:03,793 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) [2021-05-06 10:43:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-05-06 10:43:03,795 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 22 [2021-05-06 10:43:03,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:43:03,795 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-05-06 10:43:03,795 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) [2021-05-06 10:43:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-05-06 10:43:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-06 10:43:03,798 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:43:03,799 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:43:03,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 10:43:03,799 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:43:03,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:43:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash 793962506, now seen corresponding path program 1 times [2021-05-06 10:43:03,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:43:03,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544099201] [2021-05-06 10:43:03,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:43:03,839 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:43:03,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067464050] [2021-05-06 10:43:03,839 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 [2021-05-06 10:43:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:04,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-06 10:43:04,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:43:04,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 10:43:04,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:43:04,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544099201] [2021-05-06 10:43:04,305 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:43:04,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067464050] [2021-05-06 10:43:04,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067464050] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 10:43:04,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 10:43:04,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 10:43:04,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002987677] [2021-05-06 10:43:04,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 10:43:04,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:43:04,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 10:43:04,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 10:43:04,310 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 10:43:06,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:43:06,453 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-05-06 10:43:06,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 10:43:06,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-05-06 10:43:06,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:43:06,454 INFO L225 Difference]: With dead ends: 33 [2021-05-06 10:43:06,455 INFO L226 Difference]: Without dead ends: 31 [2021-05-06 10:43:06,455 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 10:43:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-06 10:43:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-06 10:43:06,461 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) [2021-05-06 10:43:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-05-06 10:43:06,462 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 22 [2021-05-06 10:43:06,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:43:06,462 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-05-06 10:43:06,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 10:43:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-05-06 10:43:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-06 10:43:06,463 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:43:06,463 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] [2021-05-06 10:43:06,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 10:43:06,673 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:43:06,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:43:06,674 INFO L82 PathProgramCache]: Analyzing trace with hash -503871754, now seen corresponding path program 1 times [2021-05-06 10:43:06,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:43:06,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561467378] [2021-05-06 10:43:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:43:06,684 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:43:06,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784559123] [2021-05-06 10:43:06,685 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 [2021-05-06 10:43:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:06,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-06 10:43:06,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:43:06,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:06,960 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 10:43:06,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:43:06,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561467378] [2021-05-06 10:43:06,961 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:43:06,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784559123] [2021-05-06 10:43:06,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784559123] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 10:43:06,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 10:43:06,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-05-06 10:43:06,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015495189] [2021-05-06 10:43:06,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 10:43:06,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:43:06,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 10:43:06,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 10:43:06,963 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 10:43:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:43:07,032 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2021-05-06 10:43:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 10:43:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-05-06 10:43:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:43:07,034 INFO L225 Difference]: With dead ends: 40 [2021-05-06 10:43:07,034 INFO L226 Difference]: Without dead ends: 40 [2021-05-06 10:43:07,034 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.7ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:43:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-06 10:43:07,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-05-06 10:43:07,039 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) [2021-05-06 10:43:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2021-05-06 10:43:07,040 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2021-05-06 10:43:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:43:07,041 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2021-05-06 10:43:07,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 10:43:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2021-05-06 10:43:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-06 10:43:07,042 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:43:07,042 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] [2021-05-06 10:43:07,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:43:07,248 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:43:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:43:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1813677706, now seen corresponding path program 2 times [2021-05-06 10:43:07,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:43:07,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347239186] [2021-05-06 10:43:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:43:07,259 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:43:07,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618848918] [2021-05-06 10:43:07,259 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 [2021-05-06 10:43:07,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 10:43:07,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 10:43:07,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-06 10:43:07,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:43:07,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-06 10:43:07,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:43:07,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347239186] [2021-05-06 10:43:07,696 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:43:07,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618848918] [2021-05-06 10:43:07,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618848918] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 10:43:07,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 10:43:07,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-06 10:43:07,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786245926] [2021-05-06 10:43:07,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 10:43:07,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:43:07,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 10:43:07,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:43:07,698 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) [2021-05-06 10:43:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:43:07,745 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2021-05-06 10:43:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 10:43:07,746 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 [2021-05-06 10:43:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:43:07,747 INFO L225 Difference]: With dead ends: 37 [2021-05-06 10:43:07,747 INFO L226 Difference]: Without dead ends: 35 [2021-05-06 10:43:07,747 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-06 10:43:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-06 10:43:07,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-05-06 10:43:07,750 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) [2021-05-06 10:43:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-05-06 10:43:07,751 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 36 [2021-05-06 10:43:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:43:07,752 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-05-06 10:43:07,752 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) [2021-05-06 10:43:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-05-06 10:43:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-06 10:43:07,753 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:43:07,753 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] [2021-05-06 10:43:07,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:43:07,963 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:43:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:43:07,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1285656823, now seen corresponding path program 1 times [2021-05-06 10:43:07,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:43:07,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200075272] [2021-05-06 10:43:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:43:07,974 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:43:07,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483420135] [2021-05-06 10:43:07,975 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 [2021-05-06 10:43:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:43:08,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-06 10:43:08,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:43:08,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:43:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-05-06 10:43:08,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:43:08,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200075272] [2021-05-06 10:43:08,214 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:43:08,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483420135] [2021-05-06 10:43:08,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483420135] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 10:43:08,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 10:43:08,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-06 10:43:08,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34009500] [2021-05-06 10:43:08,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 10:43:08,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:43:08,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 10:43:08,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:43:08,215 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-06 10:43:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:43:08,263 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-05-06 10:43:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 10:43:08,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 40 [2021-05-06 10:43:08,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:43:08,264 INFO L225 Difference]: With dead ends: 31 [2021-05-06 10:43:08,264 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 10:43:08,264 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.8ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-06 10:43:08,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 10:43:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 10:43:08,264 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) [2021-05-06 10:43:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 10:43:08,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-05-06 10:43:08,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:43:08,265 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 10:43:08,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-06 10:43:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 10:43:08,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 10:43:08,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:43:08,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 10:43:08 BasicIcfg [2021-05-06 10:43:08,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 10:43:08,485 INFO L168 Benchmark]: Toolchain (without parser) took 6994.98 ms. Allocated memory is still 167.8 MB. Free memory was 132.3 MB in the beginning and 138.6 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 10:43:08,485 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 167.8 MB. Free memory is still 148.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 10:43:08,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.51 ms. Allocated memory is still 167.8 MB. Free memory was 132.0 MB in the beginning and 149.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-05-06 10:43:08,486 INFO L168 Benchmark]: Boogie Preprocessor took 74.37 ms. Allocated memory is still 167.8 MB. Free memory was 149.8 MB in the beginning and 148.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 10:43:08,486 INFO L168 Benchmark]: RCFGBuilder took 644.76 ms. Allocated memory is still 167.8 MB. Free memory was 148.2 MB in the beginning and 133.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 10:43:08,486 INFO L168 Benchmark]: IcfgTransformer took 40.14 ms. Allocated memory is still 167.8 MB. Free memory was 133.5 MB in the beginning and 132.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 10:43:08,486 INFO L168 Benchmark]: TraceAbstraction took 5716.17 ms. Allocated memory is still 167.8 MB. Free memory was 132.0 MB in the beginning and 138.6 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 10:43:08,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 167.8 MB. Free memory is still 148.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 499.51 ms. Allocated memory is still 167.8 MB. Free memory was 132.0 MB in the beginning and 149.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.37 ms. Allocated memory is still 167.8 MB. Free memory was 149.8 MB in the beginning and 148.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 644.76 ms. Allocated memory is still 167.8 MB. Free memory was 148.2 MB in the beginning and 133.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 40.14 ms. Allocated memory is still 167.8 MB. Free memory was 133.5 MB in the beginning and 132.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5716.17 ms. Allocated memory is still 167.8 MB. Free memory was 132.0 MB in the beginning and 138.6 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 5577.9ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 19.8ms, AutomataDifference: 2565.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 127 SDtfs, 35 SDslu, 349 SDs, 0 SdLazy, 128 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2269.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 282.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 50.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 92.1ms SsaConstructionTime, 382.9ms SatisfiabilityAnalysisTime, 1160.1ms InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 375 SizeOfPredicates, 6 NumberOfNonLiveVariables, 531 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 52/60 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...