/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:36:43,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:36:43,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:36:43,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 11:36:43,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:36:43,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:36:43,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:36:43,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:36:43,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:36:43,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:36:43,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:36:43,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:36:43,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:36:43,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:36:43,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:36:43,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:36:43,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 11:36:43,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:36:43,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:36:43,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:36:43,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:36:43,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:36:43,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:36:43,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:36:43,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:36:43,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:36:43,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:36:43,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:36:43,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:36:43,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:36:43,119 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:36:43,120 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:36:43,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:36:43,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:36:43,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:36:43,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:36:43,382 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:36:43,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-05-06 11:36:43,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c097faae/de7d8992f8a94241adb375a662c8ddb2/FLAG9a3dbc519 [2021-05-06 11:36:43,773 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:36:43,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-05-06 11:36:43,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c097faae/de7d8992f8a94241adb375a662c8ddb2/FLAG9a3dbc519 [2021-05-06 11:36:44,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c097faae/de7d8992f8a94241adb375a662c8ddb2 [2021-05-06 11:36:44,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:36:44,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:36:44,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:36:44,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:36:44,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:36:44,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57abc308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44, skipping insertion in model container [2021-05-06 11:36:44,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:36:44,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:36:44,267 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-05-06 11:36:44,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:36:44,280 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:36:44,288 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-05-06 11:36:44,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:36:44,299 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:36:44,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44 WrapperNode [2021-05-06 11:36:44,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:36:44,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:36:44,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:36:44,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:36:44,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (1/1) ... [2021-05-06 11:36:44,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:36:44,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:36:44,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:36:44,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:36:44,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (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 [2021-05-06 11:36:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:36:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:36:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:36:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 11:36:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:36:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:36:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:36:44,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 11:36:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:36:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:36:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:36:44,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:36:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:36:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:36:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:36:44,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:36:44,665 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 11:36:44,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:36:44 BoogieIcfgContainer [2021-05-06 11:36:44,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:36:44,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:36:44,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:36:44,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:36:44,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:36:44" (1/3) ... [2021-05-06 11:36:44,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca5a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:36:44, skipping insertion in model container [2021-05-06 11:36:44,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:36:44" (2/3) ... [2021-05-06 11:36:44,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca5a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:36:44, skipping insertion in model container [2021-05-06 11:36:44,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:36:44" (3/3) ... [2021-05-06 11:36:44,671 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-05-06 11:36:44,674 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:36:44,676 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:36:44,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:36:44,701 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:36:44,701 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:36:44,701 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:36:44,701 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:36:44,701 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:36:44,702 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:36:44,702 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:36:44,702 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:36:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-05-06 11:36:44,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 11:36:44,733 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:44,734 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:44,734 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:44,738 INFO L82 PathProgramCache]: Analyzing trace with hash -522767122, now seen corresponding path program 1 times [2021-05-06 11:36:44,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:44,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573665848] [2021-05-06 11:36:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:44,814 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:36:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:44,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:44,996 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:44,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573665848] [2021-05-06 11:36:44,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1573665848] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:44,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:44,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 11:36:44,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017496959] [2021-05-06 11:36:45,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 11:36:45,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:45,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 11:36:45,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 11:36:45,013 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-05-06 11:36:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:45,079 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-05-06 11:36:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 11:36:45,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2021-05-06 11:36:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:45,086 INFO L225 Difference]: With dead ends: 35 [2021-05-06 11:36:45,086 INFO L226 Difference]: Without dead ends: 15 [2021-05-06 11:36:45,089 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 11:36:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-06 11:36:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-06 11:36:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-05-06 11:36:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-06 11:36:45,118 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 14 [2021-05-06 11:36:45,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:45,119 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-06 11:36:45,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-05-06 11:36:45,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-06 11:36:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-06 11:36:45,120 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:45,120 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:45,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:36:45,120 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:45,121 INFO L82 PathProgramCache]: Analyzing trace with hash -637283726, now seen corresponding path program 1 times [2021-05-06 11:36:45,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:45,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505895968] [2021-05-06 11:36:45,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:45,131 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:36:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:45,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:45,414 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:45,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505895968] [2021-05-06 11:36:45,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [505895968] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:45,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:45,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-06 11:36:45,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143506038] [2021-05-06 11:36:45,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 11:36:45,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:45,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 11:36:45,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-06 11:36:45,416 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-06 11:36:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:45,660 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-05-06 11:36:45,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-06 11:36:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 [2021-05-06 11:36:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:45,661 INFO L225 Difference]: With dead ends: 22 [2021-05-06 11:36:45,662 INFO L226 Difference]: Without dead ends: 16 [2021-05-06 11:36:45,664 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 349.9ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-05-06 11:36:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-06 11:36:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-06 11:36:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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) [2021-05-06 11:36:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-06 11:36:45,676 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-05-06 11:36:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:45,676 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-06 11:36:45,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-06 11:36:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-06 11:36:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-06 11:36:45,677 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:36:45,677 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 11:36:45,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:36:45,677 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:36:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:36:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1050868340, now seen corresponding path program 1 times [2021-05-06 11:36:45,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:36:45,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145201777] [2021-05-06 11:36:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:36:45,739 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 88.7 percent of original size [2021-05-06 11:36:45,769 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-06 11:36:45,784 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-06 11:36:45,807 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 88.7 percent of original size 63 [2021-05-06 11:36:45,829 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=2, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2021-05-06 11:36:45,832 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-06 11:36:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:46,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:36:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:36:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:36:46,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:46,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 11:36:46,148 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:36:46,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145201777] [2021-05-06 11:36:46,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1145201777] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:36:46,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:36:46,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-06 11:36:46,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101283243] [2021-05-06 11:36:46,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-06 11:36:46,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:36:46,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-06 11:36:46,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-06 11:36:46,154 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:36:46,382 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-05-06 11:36:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-06 11:36:46,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-06 11:36:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:36:46,383 INFO L225 Difference]: With dead ends: 16 [2021-05-06 11:36:46,383 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:36:46,383 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 331.6ms TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-05-06 11:36:46,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:36:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:36:46,383 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) [2021-05-06 11:36:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:36:46,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-05-06 11:36:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:36:46,384 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:36:46,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-06 11:36:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:36:46,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:36:46,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:36:46,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:36:46,682 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-06 11:36:46,682 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L194 CegarLoopUtils]: 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)|)) [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:36:46,683 INFO L198 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-05-06 11:36:46,683 INFO L194 CegarLoopUtils]: At program point L33-2(lines 33 37) the Hoare annotation is: (exists ((v_main_~y~0_8 Int) (|v_main_#t~post6_5| Int) (|v_main_#t~post5_5| Int)) (and (<= 0 v_main_~y~0_8) (<= v_main_~y~0_8 main_~j~0) (let ((.cse0 (= |main_#t~post6| |v_main_#t~post6_5|)) (.cse5 (= main_~i~0 0)) (.cse1 (= main_~i~0 main_~x~0)) (.cse2 (= v_main_~y~0_8 main_~y~0)) (.cse3 (= main_~z~0 0)) (.cse4 (= |main_#t~post5| |v_main_#t~post5_5|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= main_~i~0 (+ main_~x~0 main_~z~0)) (not .cse5) (or (< main_~i~0 1) (< 0 (+ main_~x~0 1))) (< main_~x~0 main_~i~0) (= (+ v_main_~y~0_8 (* main_~x~0 2)) (+ (* main_~i~0 2) main_~y~0))) (and .cse0 .cse5 .cse1 .cse2 .cse3 .cse4))) (<= main_~j~0 v_main_~y~0_8))) [2021-05-06 11:36:46,684 INFO L194 CegarLoopUtils]: At program point L33-3(lines 24 42) the Hoare annotation is: (let ((.cse0 (<= (+ main_~y~0 main_~z~0) 0))) (or (and (or .cse0 (<= main_~y~0 main_~j~0)) (= main_~i~0 0) (<= 0 main_~y~0) (= main_~z~0 0)) (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0))) (and (or .cse0 (<= .cse1 main_~j~0)) (or (< 0 (+ main_~y~0 main_~z~0 1)) (<= main_~j~0 .cse1)) (not (= (+ main_~x~0 1) 0)) (exists ((v_main_~y~0_8 Int) (|v_main_#t~post6_6| Int) (|v_main_#t~post6_5| Int) (|v_main_#t~post5_6| Int) (|v_main_#t~post5_5| Int)) (and (<= 0 v_main_~y~0_8) (let ((.cse8 (+ main_~x~0 1))) (let ((.cse3 (= main_~i~0 0)) (.cse2 (= main_~z~0 1)) (.cse4 (= v_main_~y~0_8 (+ main_~y~0 2))) (.cse5 (= |v_main_#t~post6_6| |v_main_#t~post6_5|)) (.cse6 (= |v_main_#t~post5_6| |v_main_#t~post5_5|)) (.cse7 (= .cse8 main_~i~0))) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (< .cse8 main_~i~0) (= main_~i~0 (+ main_~x~0 main_~z~0)) (not .cse3) (or (< main_~i~0 1) (< 0 (+ main_~x~0 2))) (= (+ v_main_~y~0_8 (* main_~x~0 2)) (+ (* main_~i~0 2) main_~y~0))) (and .cse2 .cse4 .cse5 .cse6 .cse7)))) (<= v_main_~y~0_8 main_~j~0) (<= main_~j~0 v_main_~y~0_8))))))) [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 24 42) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 24 42) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point L38(lines 38 40) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 24 42) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L194 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (or (and (= main_~i~0 0) (<= main_~y~0 0) (<= 0 main_~y~0) (= main_~z~0 0)) (and (<= (+ main_~y~0 main_~z~0) 0) (< 0 (+ main_~y~0 main_~z~0 1)) (not (= (+ main_~x~0 1) 0)) (exists ((v_main_~y~0_8 Int) (|v_main_#t~post6_6| Int) (|v_main_#t~post6_5| Int) (|v_main_#t~post5_6| Int) (|v_main_#t~post5_5| Int)) (and (<= 0 v_main_~y~0_8) (let ((.cse6 (+ main_~x~0 1))) (let ((.cse1 (= main_~i~0 0)) (.cse0 (= main_~z~0 1)) (.cse2 (= v_main_~y~0_8 (+ main_~y~0 2))) (.cse3 (= |v_main_#t~post6_6| |v_main_#t~post6_5|)) (.cse4 (= |v_main_#t~post5_6| |v_main_#t~post5_5|)) (.cse5 (= .cse6 main_~i~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (< .cse6 main_~i~0) (= main_~i~0 (+ main_~x~0 main_~z~0)) (not .cse1) (or (< main_~i~0 1) (< 0 (+ main_~x~0 2))) (= (+ v_main_~y~0_8 (* main_~x~0 2)) (+ (* main_~i~0 2) main_~y~0))) (and .cse0 .cse2 .cse3 .cse4 .cse5)))) (<= v_main_~y~0_8 main_~j~0) (<= main_~j~0 v_main_~y~0_8))))) [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2021-05-06 11:36:46,684 INFO L194 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:36:46,685 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:36:46,685 INFO L194 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:36:46,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:36:46 BoogieIcfgContainer [2021-05-06 11:36:46,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:36:46,700 INFO L168 Benchmark]: Toolchain (without parser) took 2532.15 ms. Allocated memory was 190.8 MB in the beginning and 238.0 MB in the end (delta: 47.2 MB). Free memory was 156.8 MB in the beginning and 186.5 MB in the end (delta: -29.7 MB). Peak memory consumption was 92.5 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:46,701 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 190.8 MB. Free memory is still 173.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:36:46,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.05 ms. Allocated memory is still 190.8 MB. Free memory was 156.5 MB in the beginning and 146.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:46,701 INFO L168 Benchmark]: Boogie Preprocessor took 26.40 ms. Allocated memory is still 190.8 MB. Free memory was 146.9 MB in the beginning and 145.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:46,701 INFO L168 Benchmark]: RCFGBuilder took 338.60 ms. Allocated memory is still 190.8 MB. Free memory was 145.3 MB in the beginning and 160.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:46,702 INFO L168 Benchmark]: TraceAbstraction took 2032.82 ms. Allocated memory was 190.8 MB in the beginning and 238.0 MB in the end (delta: 47.2 MB). Free memory was 160.4 MB in the beginning and 186.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 95.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:36:46,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 190.8 MB. Free memory is still 173.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 130.05 ms. Allocated memory is still 190.8 MB. Free memory was 156.5 MB in the beginning and 146.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.40 ms. Allocated memory is still 190.8 MB. Free memory was 146.9 MB in the beginning and 145.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 338.60 ms. Allocated memory is still 190.8 MB. Free memory was 145.3 MB in the beginning and 160.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2032.82 ms. Allocated memory was 190.8 MB in the beginning and 238.0 MB in the end (delta: 47.2 MB). Free memory was 160.4 MB in the beginning and 186.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 95.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1685.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 22.6ms, AutomataDifference: 564.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 297.6ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 41 SDtfs, 44 SDslu, 45 SDs, 0 SdLazy, 87 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 729.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 22 LocationsWithAnnotation, 34 PreInvPairs, 48 NumberOfFragments, 398 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 65.0ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 538 FormulaSimplificationTreeSizeReductionInter, 222.8ms 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: 33]: Loop Invariant [2021-05-06 11:36:46,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post6_5,QUANTIFIED] [2021-05-06 11:36:46,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] [2021-05-06 11:36:46,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~post5_5,QUANTIFIED] [2021-05-06 11:36:46,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_8,QUANTIFIED] Derived loop invariant: (\exists v_main_~y~0_8 : int, v_main_#t~post6_5 : int, v_main_#t~post5_5 : int :: ((0 <= v_main_~y~0_8 && v_main_~y~0_8 <= j) && ((((((aux-z ++-aux == v_main_#t~post6_5 && i == x) && v_main_~y~0_8 == y) && z == 0) && aux-x ---aux == v_main_#t~post5_5) || ((((i == x + z && !(i == 0)) && (i < 1 || 0 < x + 1)) && x < i) && v_main_~y~0_8 + x * 2 == i * 2 + y)) || (((((aux-z ++-aux == v_main_#t~post6_5 && i == 0) && i == x) && v_main_~y~0_8 == y) && z == 0) && aux-x ---aux == v_main_#t~post5_5))) && j <= v_main_~y~0_8) - 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...