/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/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:40:47,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:40:47,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:40:47,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 06:40:47,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:40:47,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:40:47,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:40:47,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:40:47,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:40:47,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:40:47,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:40:47,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:40:47,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:40:47,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:40:47,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:40:47,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:40:47,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:40:47,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:40:47,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:40:47,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:40:47,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:40:47,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:40:47,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:40:47,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:40:47,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:40:47,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:40:47,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:40:47,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:40:47,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:40:47,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:40:47,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:40:47,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:40:47,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:40:47,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:40:47,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:40:47,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:40:47,612 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:40:47,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:40:47,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:40:47,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:40:47,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:40:47,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:40:47,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:40:47,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:40:48,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:40:48,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:40:48,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:40:48,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:40:48,270 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:40:48,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-11-07 06:40:48,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513de63e1/e428b0c82f52407294fd9ce68449f179/FLAGf80d71148 [2020-11-07 06:40:49,306 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:40:49,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-11-07 06:40:49,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513de63e1/e428b0c82f52407294fd9ce68449f179/FLAGf80d71148 [2020-11-07 06:40:49,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513de63e1/e428b0c82f52407294fd9ce68449f179 [2020-11-07 06:40:49,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:40:49,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:40:49,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:40:49,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:40:49,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:40:49,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0c200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49, skipping insertion in model container [2020-11-07 06:40:49,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:40:49,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:40:49,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:40:49,896 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:40:49,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:40:49,938 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:40:49,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49 WrapperNode [2020-11-07 06:40:49,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:40:49,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:40:49,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:40:49,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:40:49,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (1/1) ... [2020-11-07 06:40:49,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:40:49,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:40:49,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:40:49,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:40:49,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (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 [2020-11-07 06:40:50,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:40:50,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:40:50,076 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:40:50,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 06:40:50,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:40:50,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:40:50,076 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:40:50,077 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:40:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:40:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:40:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:40:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:40:50,538 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:40:50,539 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:40:50,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:40:50 BoogieIcfgContainer [2020-11-07 06:40:50,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:40:50,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:40:50,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:40:50,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:40:50,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:40:49" (1/3) ... [2020-11-07 06:40:50,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82f9d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:40:50, skipping insertion in model container [2020-11-07 06:40:50,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:40:49" (2/3) ... [2020-11-07 06:40:50,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82f9d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:40:50, skipping insertion in model container [2020-11-07 06:40:50,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:40:50" (3/3) ... [2020-11-07 06:40:50,590 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-11-07 06:40:50,613 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:40:50,617 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:40:50,633 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:40:50,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:40:50,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:40:50,669 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:40:50,669 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:40:50,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:40:50,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:40:50,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:40:50,670 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:40:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-11-07 06:40:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 06:40:50,708 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:40:50,712 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] [2020-11-07 06:40:50,714 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:40:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:40:50,730 INFO L82 PathProgramCache]: Analyzing trace with hash -513592731, now seen corresponding path program 1 times [2020-11-07 06:40:50,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:40:50,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841490887] [2020-11-07 06:40:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:40:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:51,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:40:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:40:51,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841490887] [2020-11-07 06:40:51,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:40:51,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 06:40:51,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55066774] [2020-11-07 06:40:51,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 06:40:51,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:40:51,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 06:40:51,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 06:40:51,184 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2020-11-07 06:40:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:40:51,447 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-11-07 06:40:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 06:40:51,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-07 06:40:51,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:40:51,483 INFO L225 Difference]: With dead ends: 68 [2020-11-07 06:40:51,483 INFO L226 Difference]: Without dead ends: 40 [2020-11-07 06:40:51,491 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 [2020-11-07 06:40:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-11-07 06:40:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-07 06:40:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-07 06:40:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2020-11-07 06:40:51,596 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 32 [2020-11-07 06:40:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:40:51,597 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2020-11-07 06:40:51,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 06:40:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2020-11-07 06:40:51,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 06:40:51,602 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:40:51,603 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] [2020-11-07 06:40:51,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:40:51,604 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:40:51,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:40:51,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1790330064, now seen corresponding path program 1 times [2020-11-07 06:40:51,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:40:51,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409409597] [2020-11-07 06:40:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:40:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:52,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:40:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:40:52,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409409597] [2020-11-07 06:40:52,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:40:52,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 06:40:52,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448454853] [2020-11-07 06:40:52,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:40:52,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:40:52,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:40:52,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:40:52,134 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 10 states. [2020-11-07 06:40:52,658 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-11-07 06:40:52,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:40:52,910 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-11-07 06:40:52,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 06:40:52,911 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-07 06:40:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:40:52,913 INFO L225 Difference]: With dead ends: 51 [2020-11-07 06:40:52,914 INFO L226 Difference]: Without dead ends: 43 [2020-11-07 06:40:52,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-11-07 06:40:52,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-07 06:40:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-11-07 06:40:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-07 06:40:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-11-07 06:40:52,949 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 32 [2020-11-07 06:40:52,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:40:52,950 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-11-07 06:40:52,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:40:52,950 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-11-07 06:40:52,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-07 06:40:52,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:40:52,952 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:40:52,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:40:52,953 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:40:52,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:40:52,954 INFO L82 PathProgramCache]: Analyzing trace with hash -880041004, now seen corresponding path program 1 times [2020-11-07 06:40:52,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:40:52,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888197934] [2020-11-07 06:40:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:40:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:40:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:40:53,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888197934] [2020-11-07 06:40:53,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:40:53,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 06:40:53,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73528403] [2020-11-07 06:40:53,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 06:40:53,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:40:53,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 06:40:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-11-07 06:40:53,517 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 15 states. [2020-11-07 06:40:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:40:54,662 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-11-07 06:40:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 06:40:54,669 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2020-11-07 06:40:54,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:40:54,672 INFO L225 Difference]: With dead ends: 59 [2020-11-07 06:40:54,672 INFO L226 Difference]: Without dead ends: 51 [2020-11-07 06:40:54,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2020-11-07 06:40:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-07 06:40:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2020-11-07 06:40:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-07 06:40:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-11-07 06:40:54,710 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 40 [2020-11-07 06:40:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:40:54,715 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-11-07 06:40:54,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 06:40:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-11-07 06:40:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-07 06:40:54,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:40:54,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1] [2020-11-07 06:40:54,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:40:54,722 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:40:54,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:40:54,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1034141400, now seen corresponding path program 2 times [2020-11-07 06:40:54,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:40:54,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779077767] [2020-11-07 06:40:54,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:40:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:40:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:40:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:40:55,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779077767] [2020-11-07 06:40:55,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:40:55,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-11-07 06:40:55,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255273765] [2020-11-07 06:40:55,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-07 06:40:55,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:40:55,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-07 06:40:55,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-11-07 06:40:55,359 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 20 states. [2020-11-07 06:40:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:40:56,814 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-11-07 06:40:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-07 06:40:56,814 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 48 [2020-11-07 06:40:56,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:40:56,815 INFO L225 Difference]: With dead ends: 49 [2020-11-07 06:40:56,815 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:40:56,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=189, Invalid=1371, Unknown=0, NotChecked=0, Total=1560 [2020-11-07 06:40:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:40:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:40:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:40:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:40:56,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-11-07 06:40:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:40:56,819 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:40:56,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-07 06:40:56,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:40:56,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:40:56,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 06:40:56,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:40:57,763 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,763 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,763 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,764 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,764 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,767 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,768 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,768 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,768 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,768 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,768 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,769 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,769 INFO L262 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)|)) [2020-11-07 06:40:57,769 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-11-07 06:40:57,769 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,769 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,770 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,771 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,771 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:40:57,771 INFO L266 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-11-07 06:40:57,771 INFO L266 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-11-07 06:40:57,772 INFO L266 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2020-11-07 06:40:57,773 INFO L266 CegarLoopResult]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2020-11-07 06:40:57,773 INFO L266 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2020-11-07 06:40:57,773 INFO L262 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0)) [2020-11-07 06:40:57,774 INFO L262 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-07 06:40:57,774 INFO L262 CegarLoopResult]: At program point L33-3(lines 24 42) the Hoare annotation is: (let ((.cse0 (<= (+ main_~y~0 main_~z~0) 0)) (.cse3 (+ main_~x~0 main_~j~0)) (.cse1 (+ main_~y~0 main_~i~0 main_~z~0)) (.cse2 (< 0 (+ main_~y~0 main_~z~0 1)))) (and (or .cse0 (<= .cse1 main_~j~0)) (or .cse2 (<= .cse3 .cse1)) (or .cse0 (<= .cse1 .cse3)) (or (<= main_~j~0 .cse1) .cse2))) [2020-11-07 06:40:57,774 INFO L269 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-11-07 06:40:57,774 INFO L269 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-11-07 06:40:57,775 INFO L269 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-11-07 06:40:57,775 INFO L269 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: true [2020-11-07 06:40:57,775 INFO L269 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-11-07 06:40:57,776 INFO L269 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: true [2020-11-07 06:40:57,776 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 24 42) the Hoare annotation is: true [2020-11-07 06:40:57,776 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 24 42) the Hoare annotation is: true [2020-11-07 06:40:57,776 INFO L269 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2020-11-07 06:40:57,776 INFO L262 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~i~0 main_~y~0 main_~z~0 1))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-07 06:40:57,777 INFO L262 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~y~0 main_~z~0 1)) (.cse2 (+ main_~i~0 main_~y~0 |main_#t~post6| 1)) (.cse1 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse2) (<= .cse1 .cse0) (<= .cse2 .cse1))) [2020-11-07 06:40:57,777 INFO L262 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-07 06:40:57,777 INFO L262 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 |main_#t~post6| 1)) (.cse0 (+ main_~x~0 main_~j~0)) (.cse2 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse2 .cse0) (<= .cse1 .cse0) (<= .cse0 .cse2))) [2020-11-07 06:40:57,777 INFO L262 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (let ((.cse0 (+ main_~j~0 |main_#t~post5|)) (.cse2 (+ main_~x~0 main_~j~0)) (.cse1 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse2) (<= .cse1 .cse0) (<= .cse2 .cse1))) [2020-11-07 06:40:57,779 INFO L262 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0))) [2020-11-07 06:40:57,779 INFO L262 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0)) (.cse2 (+ main_~j~0 |main_#t~post5|))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse2 .cse0) (<= .cse0 .cse2))) [2020-11-07 06:40:57,780 INFO L269 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-11-07 06:40:57,780 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 24 42) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L269 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L269 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L269 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L269 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L269 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: true [2020-11-07 06:40:57,781 INFO L262 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2020-11-07 06:40:57,782 INFO L262 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-07 06:40:57,782 INFO L269 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2020-11-07 06:40:57,782 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2020-11-07 06:40:57,782 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2020-11-07 06:40:57,782 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:40:57,783 INFO L262 CegarLoopResult]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:40:57,783 INFO L262 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:40:57,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:40:57 BoogieIcfgContainer [2020-11-07 06:40:57,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:40:57,822 INFO L168 Benchmark]: Toolchain (without parser) took 8196.48 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 128.3 MB in the beginning and 84.4 MB in the end (delta: 43.9 MB). Peak memory consumption was 112.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:40:57,823 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 125.8 MB in the end (delta: 141.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:40:57,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.89 ms. Allocated memory is still 151.0 MB. Free memory was 127.9 MB in the beginning and 118.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 06:40:57,826 INFO L168 Benchmark]: Boogie Preprocessor took 46.75 ms. Allocated memory is still 151.0 MB. Free memory was 118.1 MB in the beginning and 116.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:40:57,827 INFO L168 Benchmark]: RCFGBuilder took 554.71 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 100.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 06:40:57,828 INFO L168 Benchmark]: TraceAbstraction took 7246.79 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 135.2 MB in the beginning and 84.4 MB in the end (delta: 50.9 MB). Peak memory consumption was 118.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:40:57,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 125.8 MB in the end (delta: 141.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 300.89 ms. Allocated memory is still 151.0 MB. Free memory was 127.9 MB in the beginning and 118.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.75 ms. Allocated memory is still 151.0 MB. Free memory was 118.1 MB in the beginning and 116.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.71 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 100.8 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7246.79 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 135.2 MB in the beginning and 84.4 MB in the end (delta: 50.9 MB). Peak memory consumption was 118.0 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: 33]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - 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, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 183 SDslu, 398 SDs, 0 SdLazy, 805 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 89 PreInvPairs, 115 NumberOfFragments, 382 HoareAnnotationTreeSize, 89 FomulaSimplifications, 796 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 53 FomulaSimplificationsInter, 1407 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 39573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/11 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...