/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/loopv1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:39:56,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:39:56,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:39:56,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-16 07:39:56,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:39:56,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:39:56,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:39:56,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:39:56,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:39:56,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:39:56,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:39:56,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:39:56,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:39:56,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:39:56,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:39:56,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:39:56,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:39:56,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:39:56,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:39:56,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:39:56,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:39:56,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:39:56,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:39:56,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:39:56,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:39:56,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:39:56,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:39:56,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:39:56,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:39:56,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:39:56,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:39:56,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:39:56,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:39:56,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:39:56,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:39:56,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:39:56,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:39:56,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:39:56,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:39:56,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:39:56,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:39:56,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:39:56,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:39:56,866 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:39:56,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:39:57,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:39:57,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:39:57,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:39:57,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:39:57,298 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:39:57,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/loopv1.c [2021-04-16 07:39:57,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44a44dbd/2d54230dc3c747f5ab34dc2da3d86f4f/FLAG739acea9b [2021-04-16 07:39:57,944 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:39:57,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/loopv1.c [2021-04-16 07:39:57,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44a44dbd/2d54230dc3c747f5ab34dc2da3d86f4f/FLAG739acea9b [2021-04-16 07:39:58,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44a44dbd/2d54230dc3c747f5ab34dc2da3d86f4f [2021-04-16 07:39:58,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:39:58,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:39:58,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:39:58,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:39:58,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:39:58,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fed65d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58, skipping insertion in model container [2021-04-16 07:39:58,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:39:58,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:39:58,538 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/loopv1.c[456,469] [2021-04-16 07:39:58,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:39:58,562 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:39:58,613 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/loopv1.c[456,469] [2021-04-16 07:39:58,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:39:58,636 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:39:58,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58 WrapperNode [2021-04-16 07:39:58,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:39:58,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:39:58,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:39:58,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:39:58,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (1/1) ... [2021-04-16 07:39:58,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:39:58,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:39:58,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:39:58,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:39:58,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (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 [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:39:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 07:39:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:39:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:39:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:39:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:39:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:39:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:39:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:39:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:39:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:39:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:39:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:39:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:39:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:39:59,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:39:59,082 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 07:39:59,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:39:59 BoogieIcfgContainer [2021-04-16 07:39:59,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:39:59,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:39:59,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:39:59,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:39:59,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:39:58" (1/3) ... [2021-04-16 07:39:59,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542a1f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:39:59, skipping insertion in model container [2021-04-16 07:39:59,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:39:58" (2/3) ... [2021-04-16 07:39:59,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542a1f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:39:59, skipping insertion in model container [2021-04-16 07:39:59,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:39:59" (3/3) ... [2021-04-16 07:39:59,092 INFO L111 eAbstractionObserver]: Analyzing ICFG loopv1.c [2021-04-16 07:39:59,098 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:39:59,102 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:39:59,119 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:39:59,138 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:39:59,138 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:39:59,138 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:39:59,138 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:39:59,139 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:39:59,139 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:39:59,139 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:39:59,139 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:39:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 07:39:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 07:39:59,159 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:39:59,160 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:39:59,160 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:39:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:39:59,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1965397839, now seen corresponding path program 1 times [2021-04-16 07:39:59,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:39:59,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012741757] [2021-04-16 07:39:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:39:59,252 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:39:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:39:59,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:39:59,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:39:59,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:39:59,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:39:59,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:39:59,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:39:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:39:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:39:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:39:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:39:59,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012741757] [2021-04-16 07:39:59,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:39:59,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-16 07:39:59,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604656230] [2021-04-16 07:39:59,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-16 07:39:59,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:39:59,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-16 07:39:59,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-16 07:39:59,594 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:39:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:39:59,916 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2021-04-16 07:39:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-16 07:39:59,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-04-16 07:39:59,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:39:59,926 INFO L225 Difference]: With dead ends: 43 [2021-04-16 07:39:59,927 INFO L226 Difference]: Without dead ends: 16 [2021-04-16 07:39:59,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 253.3ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-04-16 07:39:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-04-16 07:39:59,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-04-16 07:39:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:39:59,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-04-16 07:39:59,962 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2021-04-16 07:39:59,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:39:59,962 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-04-16 07:39:59,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:39:59,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-04-16 07:39:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 07:39:59,963 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:39:59,963 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:39:59,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:39:59,964 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:39:59,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:39:59,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2050700910, now seen corresponding path program 1 times [2021-04-16 07:39:59,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:39:59,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181911174] [2021-04-16 07:39:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:39:59,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-16 07:40:00,002 INFO L175 rdanLoopAcceleration]: Guard: Formula: (and (<= |v_main_#t~nondet8_7| 2147483647) (< v_main_~i~0_12 v_main_~n~0_8) (<= 0 (+ |v_main_#t~nondet8_7| 2147483648)) (not (= |v_main_#t~nondet8_7| 0))) InVars {main_~i~0=v_main_~i~0_12, main_~n~0=v_main_~n~0_8, main_#t~nondet8=|v_main_#t~nondet8_7|} OutVars{main_~i~0=v_main_~i~0_12, main_~n~0=v_main_~n~0_8, main_#t~nondet8=|v_main_#t~nondet8_7|} AuxVars[] AssignedVars[] [2021-04-16 07:40:00,014 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 88.1 percent of original size [2021-04-16 07:40:00,020 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,026 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,047 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-16 07:40:00,049 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,054 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,060 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,066 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:40:00,077 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:40:00,081 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,083 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:40:00,087 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,097 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,103 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,109 INFO L108 tifierPushTermWalker]: treesize reduction 8, result has 11.1 percent of original size [2021-04-16 07:40:00,113 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,118 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,123 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,127 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,133 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,136 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,148 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,153 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,156 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,159 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,162 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,169 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 88.1 percent of original size 90 [2021-04-16 07:40:00,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-04-16 07:40:00,233 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:40:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:00,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:00,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:40:00,369 INFO L142 QuantifierPusher]: treesize reduction 142, result has 22.4 percent of original size [2021-04-16 07:40:00,371 INFO L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-04-16 07:40:00,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:40:00,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:40:00,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:00,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:40:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:40:00,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:40:00,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:40:00,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:40:00,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-04-16 07:40:00,507 INFO L147 QuantifierPusher]: treesize reduction 20, result has 76.5 percent of original size 65 [2021-04-16 07:40:00,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-04-16 07:40:00,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-04-16 07:40:00,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-16 07:40:00,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:40:00,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:40:00,668 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.4 percent of original size 75 [2021-04-16 07:40:00,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:40:00,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:40:00,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181911174] [2021-04-16 07:40:00,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:40:00,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-04-16 07:40:00,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490450842] [2021-04-16 07:40:00,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-16 07:40:00,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:40:00,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-16 07:40:00,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-04-16 07:40:00,749 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:01,189 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-04-16 07:40:01,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:40:01,314 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-04-16 07:40:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-16 07:40:01,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-04-16 07:40:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:40:01,315 INFO L225 Difference]: With dead ends: 19 [2021-04-16 07:40:01,315 INFO L226 Difference]: Without dead ends: 0 [2021-04-16 07:40:01,317 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 675.6ms TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2021-04-16 07:40:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-16 07:40:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-16 07:40:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-16 07:40:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-16 07:40:01,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-04-16 07:40:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:40:01,319 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-16 07:40:01,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:40:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-16 07:40:01,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-16 07:40:01,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:40:01,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-16 07:40:01,817 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 7) no Hoare annotation was computed. [2021-04-16 07:40:01,817 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 7) no Hoare annotation was computed. [2021-04-16 07:40:01,817 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 7) no Hoare annotation was computed. [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~SIZE~0 |old(~SIZE~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-04-16 07:40:01,818 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 9 11) no Hoare annotation was computed. [2021-04-16 07:40:01,818 INFO L198 CegarLoopUtils]: For program point L10(line 10) no Hoare annotation was computed. [2021-04-16 07:40:01,819 INFO L198 CegarLoopUtils]: For program point L10-2(lines 9 11) no Hoare annotation was computed. [2021-04-16 07:40:01,819 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed. [2021-04-16 07:40:01,819 INFO L201 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-04-16 07:40:01,819 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 20 34) the Hoare annotation is: true [2021-04-16 07:40:01,819 INFO L194 CegarLoopUtils]: At program point L27(lines 27 30) the Hoare annotation is: (and (<= main_~i~0 (* 3 (div main_~i~0 3))) (or (= main_~i~0 0) (<= 1 main_~i~0))) [2021-04-16 07:40:01,819 INFO L194 CegarLoopUtils]: At program point L27-2(lines 25 31) the Hoare annotation is: (or (= main_~i~0 0) (and (<= main_~i~0 (* 3 (div main_~i~0 3))) (<= 1 main_~i~0))) [2021-04-16 07:40:01,819 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 20 34) the Hoare annotation is: true [2021-04-16 07:40:01,819 INFO L201 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: true [2021-04-16 07:40:01,820 INFO L194 CegarLoopUtils]: At program point L25-2(lines 25 31) the Hoare annotation is: (or (= main_~i~0 0) (and (<= main_~i~0 (* 3 (div main_~i~0 3))) (<= 1 main_~i~0))) [2021-04-16 07:40:01,820 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 20 34) the Hoare annotation is: true [2021-04-16 07:40:01,820 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 12 17) the Hoare annotation is: true [2021-04-16 07:40:01,820 INFO L194 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-04-16 07:40:01,820 INFO L194 CegarLoopUtils]: At program point L13(lines 13 15) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:40:01,820 INFO L194 CegarLoopUtils]: At program point L13-2(lines 12 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:40:01,820 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 12 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:40:01,821 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-04-16 07:40:01,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:40:01 BoogieIcfgContainer [2021-04-16 07:40:01,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:40:01,836 INFO L168 Benchmark]: Toolchain (without parser) took 3475.29 ms. Allocated memory was 180.4 MB in the beginning and 217.1 MB in the end (delta: 36.7 MB). Free memory was 146.1 MB in the beginning and 109.8 MB in the end (delta: 36.3 MB). Peak memory consumption was 73.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:01,836 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 180.4 MB. Free memory is still 162.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:40:01,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.01 ms. Allocated memory is still 180.4 MB. Free memory was 145.9 MB in the beginning and 163.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:01,837 INFO L168 Benchmark]: Boogie Preprocessor took 47.90 ms. Allocated memory is still 180.4 MB. Free memory was 163.5 MB in the beginning and 162.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:01,837 INFO L168 Benchmark]: RCFGBuilder took 395.20 ms. Allocated memory is still 180.4 MB. Free memory was 161.9 MB in the beginning and 147.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:01,838 INFO L168 Benchmark]: TraceAbstraction took 2748.80 ms. Allocated memory was 180.4 MB in the beginning and 217.1 MB in the end (delta: 36.7 MB). Free memory was 147.2 MB in the beginning and 109.8 MB in the end (delta: 37.4 MB). Peak memory consumption was 73.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:40:01,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 180.4 MB. Free memory is still 162.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.01 ms. Allocated memory is still 180.4 MB. Free memory was 145.9 MB in the beginning and 163.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.90 ms. Allocated memory is still 180.4 MB. Free memory was 163.5 MB in the beginning and 162.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 395.20 ms. Allocated memory is still 180.4 MB. Free memory was 161.9 MB in the beginning and 147.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2748.80 ms. Allocated memory was 180.4 MB in the beginning and 217.1 MB in the end (delta: 36.7 MB). Free memory was 147.2 MB in the beginning and 109.8 MB in the end (delta: 37.4 MB). Peak memory consumption was 73.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2184.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.6ms, AutomataDifference: 918.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 496.5ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 44 SDslu, 42 SDs, 0 SdLazy, 109 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 176.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 929.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 21 LocationsWithAnnotation, 39 PreInvPairs, 60 NumberOfFragments, 121 HoareAnnotationTreeSize, 39 FomulaSimplifications, 389 FormulaSimplificationTreeSizeReduction, 118.7ms HoareSimplificationTime, 21 FomulaSimplificationsInter, 958 FormulaSimplificationTreeSizeReductionInter, 361.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == 0 || (i <= 3 * (i / 3) && 1 <= i) - ProcedureContractResult [Line: 20]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! Received shutdown request...