/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 04:32:09,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 04:32:09,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 04:32:09,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 04:32:09,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 04:32:09,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 04:32:09,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 04:32:09,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 04:32:09,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 04:32:09,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 04:32:09,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 04:32:09,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 04:32:09,479 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 04:32:09,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 04:32:09,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 04:32:09,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 04:32:09,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 04:32:09,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 04:32:09,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 04:32:09,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 04:32:09,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 04:32:09,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 04:32:09,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 04:32:09,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 04:32:09,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 04:32:09,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 04:32:09,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 04:32:09,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 04:32:09,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 04:32:09,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 04:32:09,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 04:32:09,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 04:32:09,525 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 04:32:09,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 04:32:09,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 04:32:09,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 04:32:09,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 04:32:09,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 04:32:09,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 04:32:09,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 04:32:09,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:32:09,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 04:32:09,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 04:32:09,527 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 04:32:09,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 04:32:09,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 04:32:09,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 04:32:09,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 04:32:09,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 04:32:09,825 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 04:32:09,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i [2022-03-20 04:32:09,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731c38ff9/dae7b7d365f84efa979f57015bb67c4f/FLAGe22908150 [2022-03-20 04:32:10,338 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 04:32:10,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i [2022-03-20 04:32:10,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731c38ff9/dae7b7d365f84efa979f57015bb67c4f/FLAGe22908150 [2022-03-20 04:32:10,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731c38ff9/dae7b7d365f84efa979f57015bb67c4f [2022-03-20 04:32:10,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 04:32:10,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 04:32:10,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 04:32:10,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 04:32:10,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 04:32:10,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:10,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c277c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10, skipping insertion in model container [2022-03-20 04:32:10,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:10,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 04:32:10,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 04:32:10,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i[872,885] [2022-03-20 04:32:10,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:32:10,966 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 04:32:10,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i[872,885] [2022-03-20 04:32:10,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:32:10,995 INFO L208 MainTranslator]: Completed translation [2022-03-20 04:32:10,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10 WrapperNode [2022-03-20 04:32:10,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 04:32:10,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 04:32:10,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 04:32:10,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 04:32:11,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 04:32:11,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 04:32:11,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 04:32:11,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 04:32:11,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (1/1) ... [2022-03-20 04:32:11,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:32:11,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:32:11,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 04:32:11,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 04:32:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 04:32:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 04:32:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 04:32:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 04:32:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 04:32:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 04:32:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-20 04:32:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-20 04:32:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 04:32:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 04:32:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 04:32:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-03-20 04:32:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 04:32:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 04:32:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 04:32:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 04:32:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 04:32:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 04:32:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 04:32:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 04:32:11,162 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 04:32:11,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 04:32:11,334 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 04:32:11,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 04:32:11,353 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 04:32:11,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:32:11 BoogieIcfgContainer [2022-03-20 04:32:11,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 04:32:11,355 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 04:32:11,355 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 04:32:11,356 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 04:32:11,359 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:32:11" (1/1) ... [2022-03-20 04:32:11,361 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 04:32:11,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:32:11 BasicIcfg [2022-03-20 04:32:11,383 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 04:32:11,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 04:32:11,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 04:32:11,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 04:32:11,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 04:32:10" (1/4) ... [2022-03-20 04:32:11,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54560515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:32:11, skipping insertion in model container [2022-03-20 04:32:11,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:32:10" (2/4) ... [2022-03-20 04:32:11,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54560515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:32:11, skipping insertion in model container [2022-03-20 04:32:11,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:32:11" (3/4) ... [2022-03-20 04:32:11,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54560515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:32:11, skipping insertion in model container [2022-03-20 04:32:11,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:32:11" (4/4) ... [2022-03-20 04:32:11,402 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark51_polynomial.iJordan [2022-03-20 04:32:11,407 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 04:32:11,407 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 04:32:11,485 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 04:32:11,493 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 04:32:11,494 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 04:32:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 04:32:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 04:32:11,532 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:32:11,533 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:32:11,534 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:32:11,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:32:11,539 INFO L85 PathProgramCache]: Analyzing trace with hash -383999135, now seen corresponding path program 1 times [2022-03-20 04:32:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:32:11,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886204729] [2022-03-20 04:32:11,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:32:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:32:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:32:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:32:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:32:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:32:11,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:32:11,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886204729] [2022-03-20 04:32:11,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886204729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:32:11,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:32:11,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 04:32:11,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273114434] [2022-03-20 04:32:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:32:11,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 04:32:11,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:32:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 04:32:11,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:32:11,788 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:32:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:32:11,828 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-03-20 04:32:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 04:32:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 04:32:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:32:11,844 INFO L225 Difference]: With dead ends: 22 [2022-03-20 04:32:11,844 INFO L226 Difference]: Without dead ends: 15 [2022-03-20 04:32:11,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:32:11,850 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:32:11,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:32:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-03-20 04:32:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-03-20 04:32:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:32:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-03-20 04:32:11,880 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-03-20 04:32:11,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:32:11,881 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-03-20 04:32:11,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:32:11,882 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-03-20 04:32:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 04:32:11,882 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:32:11,882 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:32:11,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 04:32:11,883 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:32:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:32:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash -383075614, now seen corresponding path program 1 times [2022-03-20 04:32:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:32:11,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653382736] [2022-03-20 04:32:11,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:32:11,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:32:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:32:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:32:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:32:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:32:12,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:32:12,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653382736] [2022-03-20 04:32:12,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653382736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:32:12,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:32:12,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 04:32:12,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440909530] [2022-03-20 04:32:12,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:32:12,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 04:32:12,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:32:12,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 04:32:12,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 04:32:12,016 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:32:12,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:32:12,089 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-03-20 04:32:12,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 04:32:12,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 04:32:12,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:32:12,091 INFO L225 Difference]: With dead ends: 13 [2022-03-20 04:32:12,091 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 04:32:12,092 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 04:32:12,093 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:32:12,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:32:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 04:32:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 04:32:12,094 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) [2022-03-20 04:32:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 04:32:12,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-20 04:32:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:32:12,095 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 04:32:12,095 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:32:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 04:32:12,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 04:32:12,098 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 04:32:12,098 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 04:32:12,101 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-20 04:32:12,102 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 04:32:12,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:32:12 BasicIcfg [2022-03-20 04:32:12,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 04:32:12,116 INFO L158 Benchmark]: Toolchain (without parser) took 1374.94ms. Allocated memory was 168.8MB in the beginning and 203.4MB in the end (delta: 34.6MB). Free memory was 117.7MB in the beginning and 136.8MB in the end (delta: -19.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,117 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 168.8MB. Free memory was 134.3MB in the beginning and 134.2MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 04:32:12,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.65ms. Allocated memory was 168.8MB in the beginning and 203.4MB in the end (delta: 34.6MB). Free memory was 117.4MB in the beginning and 180.7MB in the end (delta: -63.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,120 INFO L158 Benchmark]: Boogie Preprocessor took 34.76ms. Allocated memory is still 203.4MB. Free memory was 180.7MB in the beginning and 179.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,125 INFO L158 Benchmark]: RCFGBuilder took 322.04ms. Allocated memory is still 203.4MB. Free memory was 179.3MB in the beginning and 168.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,126 INFO L158 Benchmark]: IcfgTransformer took 28.02ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 167.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,126 INFO L158 Benchmark]: TraceAbstraction took 730.19ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 136.8MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-03-20 04:32:12,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 168.8MB. Free memory was 134.3MB in the beginning and 134.2MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.65ms. Allocated memory was 168.8MB in the beginning and 203.4MB in the end (delta: 34.6MB). Free memory was 117.4MB in the beginning and 180.7MB in the end (delta: -63.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.76ms. Allocated memory is still 203.4MB. Free memory was 180.7MB in the beginning and 179.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 322.04ms. Allocated memory is still 203.4MB. Free memory was 179.3MB in the beginning and 168.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 28.02ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 167.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 730.19ms. Allocated memory is still 203.4MB. Free memory was 167.2MB in the beginning and 136.8MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: 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 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 34 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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! [2022-03-20 04:32:12,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...