/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-19 22:07:36,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 22:07:36,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 22:07:36,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-19 22:07:36,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 22:07:36,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 22:07:36,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 22:07:36,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-19 22:07:36,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 22:07:36,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 22:07:36,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-19 22:07:36,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-19 22:07:36,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 22:07:36,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 22:07:36,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 22:07:36,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 22:07:36,449 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 22:07:36,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 22:07:36,450 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 22:07:36,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 22:07:36,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 22:07:36,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 22:07:36,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 22:07:36,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 22:07:36,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:07:36,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-19 22:07:36,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 22:07:36,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 22:07:36,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 22:07:36,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 22:07:36,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 22:07:36,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 22:07:36,665 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 22:07:36,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2022-03-19 22:07:36,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2af91c382/a5241641a61241b39542c2c854e48f44/FLAG665dcb3a1 [2022-03-19 22:07:37,029 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 22:07:37,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c [2022-03-19 22:07:37,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2af91c382/a5241641a61241b39542c2c854e48f44/FLAG665dcb3a1 [2022-03-19 22:07:37,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2af91c382/a5241641a61241b39542c2c854e48f44 [2022-03-19 22:07:37,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 22:07:37,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 22:07:37,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 22:07:37,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 22:07:37,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 22:07:37,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8e3e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37, skipping insertion in model container [2022-03-19 22:07:37,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 22:07:37,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 22:07:37,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c[414,427] [2022-03-19 22:07:37,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:07:37,630 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 22:07:37,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c[414,427] [2022-03-19 22:07:37,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:07:37,658 INFO L208 MainTranslator]: Completed translation [2022-03-19 22:07:37,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37 WrapperNode [2022-03-19 22:07:37,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 22:07:37,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 22:07:37,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 22:07:37,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 22:07:37,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 22:07:37,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 22:07:37,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 22:07:37,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 22:07:37,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (1/1) ... [2022-03-19 22:07:37,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:07:37,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:07:37,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 22:07:37,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-19 22:07:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 22:07:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 22:07:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 22:07:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 22:07:37,827 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 22:07:37,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 22:07:37,955 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 22:07:37,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 22:07:37,959 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 22:07:37,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:07:37 BoogieIcfgContainer [2022-03-19 22:07:37,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 22:07:37,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 22:07:37,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 22:07:37,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 22:07:37,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:07:37" (1/3) ... [2022-03-19 22:07:37,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611e4840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:07:37, skipping insertion in model container [2022-03-19 22:07:37,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:07:37" (2/3) ... [2022-03-19 22:07:37,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611e4840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:07:37, skipping insertion in model container [2022-03-19 22:07:37,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:07:37" (3/3) ... [2022-03-19 22:07:37,966 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2022-03-19 22:07:37,969 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 22:07:37,969 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 22:07:38,033 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 22:07:38,038 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 22:07:38,038 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 22:07:38,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 22:07:38,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-19 22:07:38,053 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:07:38,054 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:07:38,054 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 22:07:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:07:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1267907657, now seen corresponding path program 1 times [2022-03-19 22:07:38,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:07:38,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755172705] [2022-03-19 22:07:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:07:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:07:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:07:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:07:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:07:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:07:38,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:07:38,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755172705] [2022-03-19 22:07:38,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755172705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:07:38,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:07:38,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:07:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353570419] [2022-03-19 22:07:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:07:38,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:07:38,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:07:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:07:38,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:07:38,306 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 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, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:07:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:07:38,432 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-03-19 22:07:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:07:38,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 15 [2022-03-19 22:07:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:07:38,439 INFO L225 Difference]: With dead ends: 36 [2022-03-19 22:07:38,440 INFO L226 Difference]: Without dead ends: 0 [2022-03-19 22:07:38,442 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 [2022-03-19 22:07:38,445 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-19 22:07:38,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 47 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-19 22:07:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-19 22:07:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-19 22:07:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-19 22:07:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-19 22:07:38,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-03-19 22:07:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:07:38,462 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-19 22:07:38,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:07:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-19 22:07:38,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-19 22:07:38,464 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 22:07:38,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 22:07:38,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-19 22:07:38,480 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-03-19 22:07:38,480 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-03-19 22:07:38,480 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-03-19 22:07:38,480 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point L29(lines 29 34) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L885 garLoopResultBuilder]: At program point L29-2(lines 26 35) the Hoare annotation is: true [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 18 40) no Hoare annotation was computed. [2022-03-19 22:07:38,481 INFO L882 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-03-19 22:07:38,482 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 18 40) no Hoare annotation was computed. [2022-03-19 22:07:38,482 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true [2022-03-19 22:07:38,482 INFO L882 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-03-19 22:07:38,482 INFO L878 garLoopResultBuilder]: At program point L26-2(lines 26 35) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~z~0 100)) [2022-03-19 22:07:38,482 INFO L882 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-03-19 22:07:38,482 INFO L882 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-03-19 22:07:38,482 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:07:38,482 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|)) [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:07:38,483 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-19 22:07:38,483 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:07:38,483 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 14) the Hoare annotation is: true [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2022-03-19 22:07:38,483 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 14) no Hoare annotation was computed. [2022-03-19 22:07:38,484 INFO L882 garLoopResultBuilder]: For program point L10-2(lines 9 14) no Hoare annotation was computed. [2022-03-19 22:07:38,484 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2022-03-19 22:07:38,486 INFO L719 BasicCegarLoop]: Path program histogram: [1] [2022-03-19 22:07:38,487 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 22:07:38,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 10:07:38 BoogieIcfgContainer [2022-03-19 22:07:38,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 22:07:38,499 INFO L158 Benchmark]: Toolchain (without parser) took 1051.26ms. Allocated memory is still 226.5MB. Free memory was 175.8MB in the beginning and 158.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2022-03-19 22:07:38,499 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 226.5MB. Free memory was 191.8MB in the beginning and 191.7MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 22:07:38,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.44ms. Allocated memory is still 226.5MB. Free memory was 175.7MB in the beginning and 201.6MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-19 22:07:38,500 INFO L158 Benchmark]: Boogie Preprocessor took 29.90ms. Allocated memory is still 226.5MB. Free memory was 201.6MB in the beginning and 200.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-19 22:07:38,500 INFO L158 Benchmark]: RCFGBuilder took 270.77ms. Allocated memory is still 226.5MB. Free memory was 200.1MB in the beginning and 189.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-19 22:07:38,500 INFO L158 Benchmark]: TraceAbstraction took 536.24ms. Allocated memory is still 226.5MB. Free memory was 189.1MB in the beginning and 158.8MB in the end (delta: 30.3MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-03-19 22:07:38,502 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 226.5MB. Free memory was 191.8MB in the beginning and 191.7MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 209.44ms. Allocated memory is still 226.5MB. Free memory was 175.7MB in the beginning and 201.6MB in the end (delta: -25.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.90ms. Allocated memory is still 226.5MB. Free memory was 201.6MB in the beginning and 200.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 270.77ms. Allocated memory is still 226.5MB. Free memory was 200.1MB in the beginning and 189.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 536.24ms. Allocated memory is still 226.5MB. Free memory was 189.1MB in the beginning and 158.8MB in the end (delta: 30.3MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: 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 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 26 mSDtfsCounter, 62 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=24occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-03-19 22:07:38,528 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...