/usr/bin/java -ea -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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 04:16:10,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 04:16:10,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 04:16:10,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 04:16:10,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 04:16:10,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 04:16:10,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 04:16:10,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-08 04:16:10,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 04:16:10,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 04:16:10,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 04:16:10,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-08 04:16:10,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 04:16:10,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-08 04:16:10,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 04:16:10,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 04:16:10,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 04:16:10,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 04:16:10,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-08 04:16:10,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 04:16:10,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 04:16:10,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 04:16:10,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 04:16:10,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 04:16:10,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 04:16:10,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 04:16:10,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 04:16:10,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 04:16:10,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 04:16:10,682 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 04:16:10,682 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 04:16:10,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 04:16:10,682 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-08 04:16:10,682 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 04:16:10,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 04:16:10,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 04:16:10,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 04:16:10,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 04:16:10,935 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 04:16:10,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2022-04-08 04:16:10,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18443f016/42472d3504a340cd89e58b549a7d04b1/FLAGf3da67bc8 [2022-04-08 04:16:11,371 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 04:16:11,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2022-04-08 04:16:11,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18443f016/42472d3504a340cd89e58b549a7d04b1/FLAGf3da67bc8 [2022-04-08 04:16:11,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18443f016/42472d3504a340cd89e58b549a7d04b1 [2022-04-08 04:16:11,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 04:16:11,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 04:16:11,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 04:16:11,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 04:16:11,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 04:16:11,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:11,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be1af96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11, skipping insertion in model container [2022-04-08 04:16:11,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:11,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 04:16:11,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 04:16:11,934 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-invariants/const.c[366,379] [2022-04-08 04:16:11,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 04:16:11,955 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 04:16:11,965 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-invariants/const.c[366,379] [2022-04-08 04:16:11,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 04:16:11,979 INFO L208 MainTranslator]: Completed translation [2022-04-08 04:16:11,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11 WrapperNode [2022-04-08 04:16:11,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 04:16:11,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 04:16:11,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 04:16:11,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 04:16:11,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:11,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:11,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:11,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:12,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:12,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:12,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:12,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 04:16:12,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 04:16:12,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 04:16:12,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 04:16:12,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (1/1) ... [2022-04-08 04:16:12,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 04:16:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 04:16:12,053 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) [2022-04-08 04:16:12,076 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 [2022-04-08 04:16:12,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 04:16:12,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 04:16:12,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 04:16:12,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 04:16:12,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 04:16:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 04:16:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 04:16:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 04:16:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 04:16:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-08 04:16:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 04:16:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 04:16:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 04:16:12,170 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 04:16:12,172 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 04:16:12,312 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 04:16:12,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 04:16:12,318 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 04:16:12,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 04:16:12 BoogieIcfgContainer [2022-04-08 04:16:12,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 04:16:12,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 04:16:12,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 04:16:12,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 04:16:12,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 04:16:11" (1/3) ... [2022-04-08 04:16:12,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d50c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 04:16:12, skipping insertion in model container [2022-04-08 04:16:12,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 04:16:11" (2/3) ... [2022-04-08 04:16:12,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d50c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 04:16:12, skipping insertion in model container [2022-04-08 04:16:12,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 04:16:12" (3/3) ... [2022-04-08 04:16:12,327 INFO L111 eAbstractionObserver]: Analyzing ICFG const.c [2022-04-08 04:16:12,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 04:16:12,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 04:16:12,370 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 04:16:12,376 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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 [2022-04-08 04:16:12,376 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 04:16:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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) [2022-04-08 04:16:12,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-08 04:16:12,399 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 04:16:12,400 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 04:16:12,400 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 04:16:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 04:16:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1921127477, now seen corresponding path program 1 times [2022-04-08 04:16:12,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 04:16:12,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [851797140] [2022-04-08 04:16:12,423 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 04:16:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1921127477, now seen corresponding path program 2 times [2022-04-08 04:16:12,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 04:16:12,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934595132] [2022-04-08 04:16:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 04:16:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 04:16:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 04:16:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 04:16:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 04:16:12,680 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID [2022-04-08 04:16:12,680 INFO L290 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-08 04:16:12,681 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #49#return; {24#true} is VALID [2022-04-08 04:16:12,682 INFO L272 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 04:16:12,683 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call #Ultimate.allocInit(12, 3); {24#true} is VALID [2022-04-08 04:16:12,683 INFO L290 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2022-04-08 04:16:12,683 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #49#return; {24#true} is VALID [2022-04-08 04:16:12,684 INFO L272 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret7 := main(); {24#true} is VALID [2022-04-08 04:16:12,684 INFO L290 TraceCheckUtils]: 5: Hoare triple {24#true} ~s~0 := 0; {24#true} is VALID [2022-04-08 04:16:12,684 INFO L290 TraceCheckUtils]: 6: Hoare triple {24#true} assume !!(0 != #t~nondet4 % 4294967296);havoc #t~nondet4; {24#true} is VALID [2022-04-08 04:16:12,685 INFO L290 TraceCheckUtils]: 7: Hoare triple {24#true} assume !(0 != ~s~0 % 4294967296); {29#(= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0))} is VALID [2022-04-08 04:16:12,686 INFO L290 TraceCheckUtils]: 8: Hoare triple {29#(= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0))} assume 0 != #t~nondet6 % 4294967296;havoc #t~nondet6; {29#(= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0))} is VALID [2022-04-08 04:16:12,716 INFO L272 TraceCheckUtils]: 9: Hoare triple {29#(= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0))} call __VERIFIER_assert((if 0 == ~s~0 % 4294967296 then 1 else 0)); {30#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 04:16:12,717 INFO L290 TraceCheckUtils]: 10: Hoare triple {30#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {31#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 04:16:12,718 INFO L290 TraceCheckUtils]: 11: Hoare triple {31#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {25#false} is VALID [2022-04-08 04:16:12,718 INFO L290 TraceCheckUtils]: 12: Hoare triple {25#false} assume !false; {25#false} is VALID [2022-04-08 04:16:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 04:16:12,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 04:16:12,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934595132] [2022-04-08 04:16:12,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934595132] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 04:16:12,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 04:16:12,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 04:16:12,722 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 04:16:12,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [851797140] [2022-04-08 04:16:12,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [851797140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 04:16:12,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 04:16:12,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 04:16:12,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140626645] [2022-04-08 04:16:12,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 04:16:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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 13 [2022-04-08 04:16:12,730 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 04:16:12,752 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-04-08 04:16:12,784 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 04:16:12,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 04:16:12,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 04:16:12,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 04:16:12,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-08 04:16:12,807 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-04-08 04:16:13,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 04:16:13,046 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2022-04-08 04:16:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-08 04:16:13,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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 13 [2022-04-08 04:16:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 04:16:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-04-08 04:16:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2022-04-08 04:16:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-04-08 04:16:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 43 transitions. [2022-04-08 04:16:13,058 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 43 transitions. [2022-04-08 04:16:13,113 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 04:16:13,117 INFO L225 Difference]: With dead ends: 34 [2022-04-08 04:16:13,118 INFO L226 Difference]: Without dead ends: 0 [2022-04-08 04:16:13,123 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-08 04:16:13,134 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 04:16:13,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 37 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 04:16:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-08 04:16:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-08 04:16:13,150 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 04:16:13,150 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-04-08 04:16:13,150 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-04-08 04:16:13,151 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-04-08 04:16:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 04:16:13,151 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 04:16:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 04:16:13,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 04:16:13,152 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 04:16:13,152 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-08 04:16:13,152 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-08 04:16:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 04:16:13,152 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 04:16:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 04:16:13,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 04:16:13,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 04:16:13,153 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 04:16:13,153 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 04:16:13,153 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) [2022-04-08 04:16:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-08 04:16:13,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-04-08 04:16:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 04:16:13,155 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-08 04:16:13,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-04-08 04:16:13,157 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-08 04:16:13,158 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 04:16:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 04:16:13,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 04:16:13,160 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 04:16:13,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 04:16:13,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-08 04:16:13,262 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-08 04:16:13,263 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-08 04:16:13,263 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-08 04:16:13,263 INFO L878 garLoopResultBuilder]: At program point mainEXIT(lines 11 22) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,263 INFO L878 garLoopResultBuilder]: At program point L17(lines 13 20) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,263 INFO L878 garLoopResultBuilder]: At program point mainFINAL(lines 11 22) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,264 INFO L878 garLoopResultBuilder]: At program point L13-2(lines 13 20) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,264 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2022-04-08 04:16:13,265 INFO L878 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,265 INFO L878 garLoopResultBuilder]: At program point L14(lines 14 16) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,266 INFO L878 garLoopResultBuilder]: At program point L14-2(lines 13 20) the Hoare annotation is: (= 0 (+ (* (div main_~s~0 4294967296) (- 4294967296)) main_~s~0)) [2022-04-08 04:16:13,269 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,270 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-08 04:16:13,270 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,270 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,270 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,271 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,271 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-08 04:16:13,271 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-08 04:16:13,271 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 04:16:13,272 INFO L878 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 04:16:13,272 INFO L878 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 04:16:13,273 INFO L878 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 04:16:13,273 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 04:16:13,276 INFO L719 BasicCegarLoop]: Path program histogram: [2] [2022-04-08 04:16:13,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 04:16:13,280 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 04:16:13,281 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-08 04:16:13,295 INFO L163 areAnnotationChecker]: CFG has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-08 04:16:13,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 04:16:13 BoogieIcfgContainer [2022-04-08 04:16:13,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 04:16:13,306 INFO L158 Benchmark]: Toolchain (without parser) took 1532.84ms. Allocated memory is still 168.8MB. Free memory was 113.4MB in the beginning and 84.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.3MB. Max. memory is 8.0GB. [2022-04-08 04:16:13,306 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 81.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 04:16:13,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.24ms. Allocated memory is still 168.8MB. Free memory was 113.3MB in the beginning and 145.3MB in the end (delta: -32.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-04-08 04:16:13,307 INFO L158 Benchmark]: Boogie Preprocessor took 31.08ms. Allocated memory is still 168.8MB. Free memory was 145.3MB in the beginning and 143.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-08 04:16:13,308 INFO L158 Benchmark]: RCFGBuilder took 306.71ms. Allocated memory is still 168.8MB. Free memory was 143.7MB in the beginning and 133.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-08 04:16:13,308 INFO L158 Benchmark]: TraceAbstraction took 983.74ms. Allocated memory is still 168.8MB. Free memory was 133.3MB in the beginning and 84.0MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2022-04-08 04:16:13,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 81.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 205.24ms. Allocated memory is still 168.8MB. Free memory was 113.3MB in the beginning and 145.3MB in the end (delta: -32.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.08ms. Allocated memory is still 168.8MB. Free memory was 145.3MB in the beginning and 143.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 306.71ms. Allocated memory is still 168.8MB. Free memory was 143.7MB in the beginning and 133.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 983.74ms. Allocated memory is still 168.8MB. Free memory was 133.3MB in the beginning and 84.0MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. 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: 7]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 27 PreInvPairs, 38 NumberOfFragments, 108 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 == s / 4294967296 * -4294967296 + s - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: 0 == s / 4294967296 * -4294967296 + s - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-04-08 04:16:13,344 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...