/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/hhk2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:29:52,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:29:52,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:29:52,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:29:52,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:29:52,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:29:52,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:29:52,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:29:52,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:29:52,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:29:52,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:29:52,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:29:52,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:29:52,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:29:52,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:29:52,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:29:52,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:29:52,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:29:52,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:29:52,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:29:52,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:29:52,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:29:52,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:29:52,925 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:29:52,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:29:52,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:29:52,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:29:52,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:29:52,926 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:29:52,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:29:52,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:29:52,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:29:52,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:29:52,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:29:52,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:29:52,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:29:53,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:29:53,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:29:53,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:29:53,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:29:53,425 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:29:53,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/hhk2008.i [2020-10-24 02:29:53,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb6ec7a1/103b898ef61a4b18b9e2d3f36ab5ffaf/FLAG89ad28031 [2020-10-24 02:29:54,202 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:29:54,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/hhk2008.i [2020-10-24 02:29:54,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb6ec7a1/103b898ef61a4b18b9e2d3f36ab5ffaf/FLAG89ad28031 [2020-10-24 02:29:54,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb6ec7a1/103b898ef61a4b18b9e2d3f36ab5ffaf [2020-10-24 02:29:54,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:29:54,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:29:54,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:29:54,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:29:54,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:29:54,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e66967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54, skipping insertion in model container [2020-10-24 02:29:54,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:29:54,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:29:54,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:29:54,883 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:29:54,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:29:54,923 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:29:54,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54 WrapperNode [2020-10-24 02:29:54,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:29:54,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:29:54,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:29:54,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:29:54,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... [2020-10-24 02:29:54,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:29:54,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:29:54,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:29:54,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:29:54,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:29:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:29:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:29:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:29:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-24 02:29:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:29:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:29:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:29:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:29:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 02:29:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 02:29:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:29:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:29:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-24 02:29:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:29:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:29:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:29:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:29:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:29:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:29:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:29:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:29:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:29:55,522 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:29:55,522 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 02:29:55,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:29:55 BoogieIcfgContainer [2020-10-24 02:29:55,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:29:55,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:29:55,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:29:55,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:29:55,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:29:54" (1/3) ... [2020-10-24 02:29:55,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166535da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:29:55, skipping insertion in model container [2020-10-24 02:29:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:54" (2/3) ... [2020-10-24 02:29:55,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166535da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:29:55, skipping insertion in model container [2020-10-24 02:29:55,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:29:55" (3/3) ... [2020-10-24 02:29:55,536 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2020-10-24 02:29:55,547 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:29:55,551 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:29:55,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:29:55,583 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:29:55,583 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:29:55,583 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:29:55,583 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:29:55,583 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:29:55,583 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:29:55,584 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:29:55,584 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:29:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-24 02:29:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-24 02:29:55,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:55,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:55,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:55,618 INFO L82 PathProgramCache]: Analyzing trace with hash -450178663, now seen corresponding path program 1 times [2020-10-24 02:29:55,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:55,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203427702] [2020-10-24 02:29:55,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:55,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:29:55,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203427702] [2020-10-24 02:29:55,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:29:55,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:29:55,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722535212] [2020-10-24 02:29:55,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:29:55,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:55,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:29:55,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:29:55,947 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-10-24 02:29:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:29:56,036 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-10-24 02:29:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:29:56,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-10-24 02:29:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:29:56,046 INFO L225 Difference]: With dead ends: 60 [2020-10-24 02:29:56,047 INFO L226 Difference]: Without dead ends: 33 [2020-10-24 02:29:56,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:29:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-24 02:29:56,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-24 02:29:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-24 02:29:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-10-24 02:29:56,098 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 30 [2020-10-24 02:29:56,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:29:56,099 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-10-24 02:29:56,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:29:56,099 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-10-24 02:29:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-24 02:29:56,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:56,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:56,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:29:56,101 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:56,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:56,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1480233453, now seen corresponding path program 1 times [2020-10-24 02:29:56,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:56,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740049146] [2020-10-24 02:29:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:29:56,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740049146] [2020-10-24 02:29:56,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:29:56,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-24 02:29:56,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635696678] [2020-10-24 02:29:56,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 02:29:56,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:56,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 02:29:56,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-24 02:29:56,399 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 9 states. [2020-10-24 02:29:56,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:29:56,903 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2020-10-24 02:29:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 02:29:56,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-10-24 02:29:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:29:56,906 INFO L225 Difference]: With dead ends: 43 [2020-10-24 02:29:56,906 INFO L226 Difference]: Without dead ends: 36 [2020-10-24 02:29:56,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-10-24 02:29:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-24 02:29:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-24 02:29:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-24 02:29:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-10-24 02:29:56,923 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 30 [2020-10-24 02:29:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:29:56,924 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-10-24 02:29:56,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 02:29:56,924 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-10-24 02:29:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-24 02:29:56,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:56,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:56,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:29:56,926 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:56,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:56,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1044717281, now seen corresponding path program 1 times [2020-10-24 02:29:56,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:56,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269609971] [2020-10-24 02:29:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:29:57,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269609971] [2020-10-24 02:29:57,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:29:57,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 02:29:57,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453532752] [2020-10-24 02:29:57,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 02:29:57,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:57,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 02:29:57,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-24 02:29:57,300 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 11 states. [2020-10-24 02:29:57,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:29:57,773 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2020-10-24 02:29:57,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:29:57,774 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 33 [2020-10-24 02:29:57,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:29:57,775 INFO L225 Difference]: With dead ends: 45 [2020-10-24 02:29:57,775 INFO L226 Difference]: Without dead ends: 38 [2020-10-24 02:29:57,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-10-24 02:29:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-24 02:29:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-24 02:29:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-24 02:29:57,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2020-10-24 02:29:57,808 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 33 [2020-10-24 02:29:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:29:57,808 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2020-10-24 02:29:57,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 02:29:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2020-10-24 02:29:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-24 02:29:57,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:57,810 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:57,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:29:57,811 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:57,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:57,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1678638445, now seen corresponding path program 2 times [2020-10-24 02:29:57,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:57,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776222068] [2020-10-24 02:29:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:58,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:29:58,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776222068] [2020-10-24 02:29:58,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:29:58,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-24 02:29:58,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492920578] [2020-10-24 02:29:58,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 02:29:58,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:58,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 02:29:58,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:29:58,059 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 12 states. [2020-10-24 02:29:58,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:29:58,667 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-10-24 02:29:58,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-24 02:29:58,668 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2020-10-24 02:29:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:29:58,668 INFO L225 Difference]: With dead ends: 37 [2020-10-24 02:29:58,668 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:29:58,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2020-10-24 02:29:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:29:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:29:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:29:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:29:58,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-10-24 02:29:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:29:58,671 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:29:58,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 02:29:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:29:58,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:29:58,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:29:58,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:29:59,215 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,215 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,215 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,216 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,217 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,217 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,217 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,217 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-24 02:29:59,217 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:29:59,217 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,218 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,218 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,218 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,218 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:29:59,218 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 02:29:59,218 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-24 02:29:59,218 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2020-10-24 02:29:59,219 INFO L274 CegarLoopResult]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2020-10-24 02:29:59,219 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2020-10-24 02:29:59,219 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= (+ main_~res~0 1) .cse0) (<= 0 main_~b~0) (<= .cse1 .cse0))) [2020-10-24 02:29:59,219 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (<= main_~a~0 main_~res~0) (<= main_~res~0 (+ main_~a~0 main_~b~0)) (<= main_~res~0 main_~a~0)) [2020-10-24 02:29:59,219 INFO L277 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 24 38) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-10-24 02:29:59,220 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 24 38) the Hoare annotation is: true [2020-10-24 02:29:59,221 INFO L277 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: true [2020-10-24 02:29:59,221 INFO L270 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (+ main_~a~0 main_~b~0)) (.cse1 (+ main_~res~0 main_~cnt~0 1))) (and (<= (+ main_~res~0 1) .cse0) (<= .cse1 .cse0) (<= .cse0 .cse1) (<= 0 main_~b~0))) [2020-10-24 02:29:59,221 INFO L270 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (<= 0 main_~b~0) [2020-10-24 02:29:59,221 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ main_~res~0 main_~cnt~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= 0 main_~b~0) (<= .cse1 .cse0) (<= main_~res~0 .cse0))) [2020-10-24 02:29:59,221 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 24 38) the Hoare annotation is: true [2020-10-24 02:29:59,221 INFO L270 CegarLoopResult]: At program point L32-3(lines 32 35) the Hoare annotation is: (let ((.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 main_~res~0) (<= 0 main_~b~0) (<= main_~res~0 .cse0))) [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2020-10-24 02:29:59,222 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2020-10-24 02:29:59,223 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2020-10-24 02:29:59,223 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:29:59,223 INFO L270 CegarLoopResult]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:29:59,223 INFO L270 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:29:59,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:29:59 BoogieIcfgContainer [2020-10-24 02:29:59,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:29:59,245 INFO L168 Benchmark]: Toolchain (without parser) took 4653.12 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.5 MB in the beginning and 94.3 MB in the end (delta: 33.3 MB). Peak memory consumption was 63.9 MB. Max. memory is 8.0 GB. [2020-10-24 02:29:59,246 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:29:59,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:29:59,248 INFO L168 Benchmark]: Boogie Preprocessor took 38.20 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 116.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:29:59,249 INFO L168 Benchmark]: RCFGBuilder took 560.34 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 100.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:29:59,250 INFO L168 Benchmark]: TraceAbstraction took 3713.72 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.5 MB in the beginning and 94.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:29:59,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 318.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.20 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 116.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 560.34 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 100.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3713.72 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.5 MB in the beginning and 94.3 MB in the end (delta: 6.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((a + b <= res + cnt && 0 <= b) && res + cnt <= a + b) && res <= a + b - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 122 SDtfs, 117 SDslu, 262 SDs, 0 SdLazy, 407 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 82 PreInvPairs, 99 NumberOfFragments, 179 HoareAnnotationTreeSize, 82 FomulaSimplifications, 633 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 46 FomulaSimplificationsInter, 740 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 15482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...