/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/geo3-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 18:22:03,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 18:22:03,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 18:22:03,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 18:22:03,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 18:22:03,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 18:22:03,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 18:22:03,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 18:22:03,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 18:22:03,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 18:22:03,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 18:22:03,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 18:22:03,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 18:22:03,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 18:22:03,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 18:22:03,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 18:22:03,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 18:22:03,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 18:22:03,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 18:22:03,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 18:22:03,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 18:22:03,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 18:22:03,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 18:22:03,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 18:22:03,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-23 18:22:03,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 18:22:03,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 18:22:03,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 18:22:03,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 18:22:03,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 18:22:03,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 18:22:03,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 18:22:03,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 18:22:03,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 18:22:03,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 18:22:03,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 18:22:03,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 18:22:03,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 18:22:03,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 18:22:03,569 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 18:22:03,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 18:22:03,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 18:22:03,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 18:22:03,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 18:22:03,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 18:22:03,769 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 18:22:03,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_valuebound1.c [2022-02-23 18:22:03,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87d1b511/c507749dd09349d4a36ba1f7d4429c7e/FLAG938986155 [2022-02-23 18:22:04,175 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 18:22:04,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_valuebound1.c [2022-02-23 18:22:04,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87d1b511/c507749dd09349d4a36ba1f7d4429c7e/FLAG938986155 [2022-02-23 18:22:04,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f87d1b511/c507749dd09349d4a36ba1f7d4429c7e [2022-02-23 18:22:04,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 18:22:04,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 18:22:04,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 18:22:04,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 18:22:04,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 18:22:04,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7314e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04, skipping insertion in model container [2022-02-23 18:22:04,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 18:22:04,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 18:22:04,328 WARN L230 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/geo3-ll_valuebound1.c[525,538] [2022-02-23 18:22:04,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 18:22:04,342 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 18:22:04,349 WARN L230 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/geo3-ll_valuebound1.c[525,538] [2022-02-23 18:22:04,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 18:22:04,360 INFO L208 MainTranslator]: Completed translation [2022-02-23 18:22:04,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04 WrapperNode [2022-02-23 18:22:04,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 18:22:04,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 18:22:04,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 18:22:04,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 18:22:04,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 18:22:04,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 18:22:04,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 18:22:04,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 18:22:04,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 18:22:04,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 18:22:04,402 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) [2022-02-23 18:22:04,421 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 [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-23 18:22:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 18:22:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 18:22:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 18:22:04,482 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 18:22:04,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 18:22:04,597 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 18:22:04,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 18:22:04,605 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 18:22:04,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:22:04 BoogieIcfgContainer [2022-02-23 18:22:04,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 18:22:04,607 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 18:22:04,607 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 18:22:04,607 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 18:22:04,609 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:22:04" (1/1) ... [2022-02-23 18:22:04,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 06:22:04 BasicIcfg [2022-02-23 18:22:04,634 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 18:22:04,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 18:22:04,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 18:22:04,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 18:22:04,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:22:04" (1/4) ... [2022-02-23 18:22:04,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a08696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:22:04, skipping insertion in model container [2022-02-23 18:22:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:22:04" (2/4) ... [2022-02-23 18:22:04,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a08696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:22:04, skipping insertion in model container [2022-02-23 18:22:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:22:04" (3/4) ... [2022-02-23 18:22:04,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a08696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:22:04, skipping insertion in model container [2022-02-23 18:22:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 06:22:04" (4/4) ... [2022-02-23 18:22:04,639 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound1.cJordan [2022-02-23 18:22:04,649 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 18:22:04,650 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 18:22:04,688 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 18:22:04,692 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 18:22:04,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 18:22:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-02-23 18:22:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-23 18:22:04,711 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 18:22:04,712 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 18:22:04,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 18:22:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 18:22:04,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1338008438, now seen corresponding path program 1 times [2022-02-23 18:22:04,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 18:22:04,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607001497] [2022-02-23 18:22:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 18:22:04,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 18:22:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 18:22:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-23 18:22:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-23 18:22:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-23 18:22:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-23 18:22:04,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 18:22:04,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607001497] [2022-02-23 18:22:04,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607001497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 18:22:04,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 18:22:04,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-23 18:22:04,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643221707] [2022-02-23 18:22:04,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 18:22:04,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 18:22:04,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 18:22:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 18:22:04,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-23 18:22:04,898 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-23 18:22:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 18:22:04,946 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-02-23 18:22:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 18:22:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-02-23 18:22:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 18:22:04,952 INFO L225 Difference]: With dead ends: 31 [2022-02-23 18:22:04,952 INFO L226 Difference]: Without dead ends: 26 [2022-02-23 18:22:04,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-23 18:22:04,955 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 18:22:04,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 18:22:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-02-23 18:22:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-02-23 18:22:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-02-23 18:22:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-02-23 18:22:04,978 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 29 [2022-02-23 18:22:04,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 18:22:04,978 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-02-23 18:22:04,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-02-23 18:22:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-02-23 18:22:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-23 18:22:04,979 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 18:22:04,979 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 18:22:04,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 18:22:04,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 18:22:04,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 18:22:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1251333530, now seen corresponding path program 1 times [2022-02-23 18:22:04,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 18:22:04,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585490486] [2022-02-23 18:22:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 18:22:04,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 18:22:04,997 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-23 18:22:04,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491770586] [2022-02-23 18:22:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 18:22:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 18:22:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 18:22:04,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 18:22:05,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 18:22:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 18:22:05,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-23 18:22:05,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 18:22:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-23 18:22:05,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 18:22:05,384 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-23 18:22:05,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 18:22:05,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585490486] [2022-02-23 18:22:05,385 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-23 18:22:05,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491770586] [2022-02-23 18:22:05,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491770586] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 18:22:05,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 18:22:05,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-02-23 18:22:05,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855227040] [2022-02-23 18:22:05,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 18:22:05,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 18:22:05,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 18:22:05,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 18:22:05,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-02-23 18:22:05,393 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-02-23 18:22:05,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 18:22:05,574 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-02-23 18:22:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 18:22:05,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2022-02-23 18:22:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 18:22:05,576 INFO L225 Difference]: With dead ends: 24 [2022-02-23 18:22:05,576 INFO L226 Difference]: Without dead ends: 0 [2022-02-23 18:22:05,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-23 18:22:05,577 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-23 18:22:05,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 83 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-23 18:22:05,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-23 18:22:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-23 18:22:05,578 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) [2022-02-23 18:22:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-23 18:22:05,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-02-23 18:22:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 18:22:05,578 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-23 18:22:05,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-02-23 18:22:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-23 18:22:05,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-23 18:22:05,581 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-23 18:22:05,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-23 18:22:05,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 18:22:05,784 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-23 18:22:05,785 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-23 18:22:05,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:22:05 BasicIcfg [2022-02-23 18:22:05,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-23 18:22:05,788 INFO L158 Benchmark]: Toolchain (without parser) took 1598.43ms. Allocated memory is still 196.1MB. Free memory was 143.2MB in the beginning and 101.6MB in the end (delta: 41.6MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,788 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-23 18:22:05,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.27ms. Allocated memory is still 196.1MB. Free memory was 143.0MB in the beginning and 167.1MB in the end (delta: -24.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,788 INFO L158 Benchmark]: Boogie Preprocessor took 17.07ms. Allocated memory is still 196.1MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,788 INFO L158 Benchmark]: RCFGBuilder took 227.70ms. Allocated memory is still 196.1MB. Free memory was 166.1MB in the beginning and 155.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,789 INFO L158 Benchmark]: IcfgTransformer took 27.68ms. Allocated memory is still 196.1MB. Free memory was 155.6MB in the beginning and 154.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,789 INFO L158 Benchmark]: TraceAbstraction took 1152.11ms. Allocated memory is still 196.1MB. Free memory was 154.0MB in the beginning and 101.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-02-23 18:22:05,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 170.27ms. Allocated memory is still 196.1MB. Free memory was 143.0MB in the beginning and 167.1MB in the end (delta: -24.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.07ms. Allocated memory is still 196.1MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 227.70ms. Allocated memory is still 196.1MB. Free memory was 166.1MB in the beginning and 155.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 27.68ms. Allocated memory is still 196.1MB. Free memory was 155.6MB in the beginning and 154.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1152.11ms. Allocated memory is still 196.1MB. Free memory was 154.0MB in the beginning and 101.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. 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: 17]: 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, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 52 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 2 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 30/36 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! [2022-02-23 18:22:05,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...