/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:57:13,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:57:13,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:57:13,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:57:13,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:57:13,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:57:13,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:57:13,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:57:13,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:57:13,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:57:13,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:57:13,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:57:13,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:57:13,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:57:13,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:57:13,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:57:13,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:57:13,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:57:13,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:57:13,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:57:13,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:57:13,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:57:13,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:57:13,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:57:13,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:57:13,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:57:13,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:57:13,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:57:13,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:57:13,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:57:13,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:57:13,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:57:13,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:57:13,770 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:57:13,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:57:13,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:57:13,771 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:57:13,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:57:13,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:57:13,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:57:13,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:57:13,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:57:13,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:57:13,772 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:57:13,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:57:14,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:57:14,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:57:14,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:57:14,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:57:14,176 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:57:14,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2021-02-22 01:57:14,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4953bd6/80092166229744e2ae4627a090d7bb5d/FLAG58a117b18 [2021-02-22 01:57:14,966 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:57:14,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2021-02-22 01:57:14,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4953bd6/80092166229744e2ae4627a090d7bb5d/FLAG58a117b18 [2021-02-22 01:57:15,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a4953bd6/80092166229744e2ae4627a090d7bb5d [2021-02-22 01:57:15,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:57:15,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:57:15,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:57:15,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:57:15,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:57:15,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15, skipping insertion in model container [2021-02-22 01:57:15,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:57:15,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:57:15,554 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c[823,836] [2021-02-22 01:57:15,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:57:15,570 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:57:15,591 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c[823,836] [2021-02-22 01:57:15,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:57:15,609 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:57:15,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15 WrapperNode [2021-02-22 01:57:15,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:57:15,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:57:15,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:57:15,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:57:15,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (1/1) ... [2021-02-22 01:57:15,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:57:15,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:57:15,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:57:15,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:57:15,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (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 [2021-02-22 01:57:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:57:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:57:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:57:15,767 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-02-22 01:57:15,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:57:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:57:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:57:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:57:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:57:15,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:57:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-22 01:57:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-02-22 01:57:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:57:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:57:15,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:57:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:57:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:57:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:57:15,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:57:16,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:57:16,306 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:57:16,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:57:16 BoogieIcfgContainer [2021-02-22 01:57:16,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:57:16,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:57:16,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:57:16,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:57:16,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:57:15" (1/3) ... [2021-02-22 01:57:16,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4372bfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:57:16, skipping insertion in model container [2021-02-22 01:57:16,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:15" (2/3) ... [2021-02-22 01:57:16,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4372bfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:57:16, skipping insertion in model container [2021-02-22 01:57:16,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:57:16" (3/3) ... [2021-02-22 01:57:16,318 INFO L111 eAbstractionObserver]: Analyzing ICFG test11.c [2021-02-22 01:57:16,326 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:57:16,332 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:57:16,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:57:16,389 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:57:16,389 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:57:16,390 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:57:16,390 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:57:16,390 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:57:16,390 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:57:16,390 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:57:16,390 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:57:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2021-02-22 01:57:16,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-22 01:57:16,419 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:16,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:57:16,420 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:16,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:16,427 INFO L82 PathProgramCache]: Analyzing trace with hash -181270899, now seen corresponding path program 1 times [2021-02-22 01:57:16,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:16,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391014070] [2021-02-22 01:57:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:16,529 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:16,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:16,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:16,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:16,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:57:16,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:16,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:57:16,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:16,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:16,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:16,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:16,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:16,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:17,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:57:17,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391014070] [2021-02-22 01:57:17,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:17,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:57:17,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766810889] [2021-02-22 01:57:17,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:57:17,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:17,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:57:17,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:57:17,079 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 6 states. [2021-02-22 01:57:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:17,383 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2021-02-22 01:57:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 01:57:17,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2021-02-22 01:57:17,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:17,396 INFO L225 Difference]: With dead ends: 99 [2021-02-22 01:57:17,396 INFO L226 Difference]: Without dead ends: 64 [2021-02-22 01:57:17,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:57:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-22 01:57:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-02-22 01:57:17,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-22 01:57:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2021-02-22 01:57:17,459 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 48 [2021-02-22 01:57:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:17,460 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2021-02-22 01:57:17,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:57:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2021-02-22 01:57:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-22 01:57:17,462 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:17,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:57:17,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:57:17,463 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:17,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1534970838, now seen corresponding path program 1 times [2021-02-22 01:57:17,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:17,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014571916] [2021-02-22 01:57:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:17,468 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:17,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:17,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:17,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:17,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:17,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:57:17,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014571916] [2021-02-22 01:57:17,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:17,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 01:57:17,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529913966] [2021-02-22 01:57:17,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 01:57:17,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:17,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 01:57:17,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:57:17,699 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand 5 states. [2021-02-22 01:57:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:17,962 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2021-02-22 01:57:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:57:17,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2021-02-22 01:57:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:17,969 INFO L225 Difference]: With dead ends: 80 [2021-02-22 01:57:17,969 INFO L226 Difference]: Without dead ends: 64 [2021-02-22 01:57:17,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:57:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-22 01:57:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-02-22 01:57:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-22 01:57:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2021-02-22 01:57:18,016 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 51 [2021-02-22 01:57:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:18,017 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2021-02-22 01:57:18,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 01:57:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2021-02-22 01:57:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-22 01:57:18,021 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:18,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:57:18,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:57:18,022 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:18,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:18,023 INFO L82 PathProgramCache]: Analyzing trace with hash 835838071, now seen corresponding path program 1 times [2021-02-22 01:57:18,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:18,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276727885] [2021-02-22 01:57:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:18,029 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:57:18,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:18,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:57:18,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:18,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:18,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:57:18,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276727885] [2021-02-22 01:57:18,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:18,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 01:57:18,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733116710] [2021-02-22 01:57:18,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 01:57:18,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 01:57:18,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:57:18,336 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 8 states. [2021-02-22 01:57:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:18,619 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2021-02-22 01:57:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:57:18,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2021-02-22 01:57:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:18,621 INFO L225 Difference]: With dead ends: 66 [2021-02-22 01:57:18,621 INFO L226 Difference]: Without dead ends: 60 [2021-02-22 01:57:18,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:57:18,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-02-22 01:57:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-02-22 01:57:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2021-02-22 01:57:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-02-22 01:57:18,637 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 54 [2021-02-22 01:57:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:18,638 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-02-22 01:57:18,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 01:57:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-02-22 01:57:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-22 01:57:18,640 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:18,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:57:18,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:57:18,640 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:18,641 INFO L82 PathProgramCache]: Analyzing trace with hash 639269039, now seen corresponding path program 1 times [2021-02-22 01:57:18,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:18,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909505410] [2021-02-22 01:57:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:18,644 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:18,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:18,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:57:18,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:18,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:18,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:57:18,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909505410] [2021-02-22 01:57:18,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:18,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:57:18,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150609024] [2021-02-22 01:57:18,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:57:18,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:18,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:57:18,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:57:18,860 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 6 states. [2021-02-22 01:57:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:19,041 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-02-22 01:57:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-22 01:57:19,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2021-02-22 01:57:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:19,044 INFO L225 Difference]: With dead ends: 60 [2021-02-22 01:57:19,044 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:57:19,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:57:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:57:19,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:57:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:57:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:57:19,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-02-22 01:57:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:19,049 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:57:19,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:57:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:57:19,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:57:19,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:57:19,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:57:19,938 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:57:19,938 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:57:19,939 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,939 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,940 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2021-02-22 01:57:19,940 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2021-02-22 01:57:19,940 INFO L192 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: true [2021-02-22 01:57:19,940 INFO L192 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: true [2021-02-22 01:57:19,940 INFO L192 CegarLoopUtils]: At program point L7-2(line 7) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-22 01:57:19,941 INFO L192 CegarLoopUtils]: At program point L11-3(line 11) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point L11-4(line 11) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point L11-5(line 11) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,942 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,943 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:57:19,943 INFO L185 CegarLoopUtils]: At program point L27(lines 14 34) the Hoare annotation is: false [2021-02-22 01:57:19,943 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2021-02-22 01:57:19,943 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,943 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L19-2(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L19-3(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,944 INFO L185 CegarLoopUtils]: At program point L15-3(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:19,945 INFO L185 CegarLoopUtils]: At program point L15-4(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:19,945 INFO L185 CegarLoopUtils]: At program point L15-5(line 15) the Hoare annotation is: false [2021-02-22 01:57:19,945 INFO L185 CegarLoopUtils]: At program point L15-6(line 15) the Hoare annotation is: false [2021-02-22 01:57:19,945 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: false [2021-02-22 01:57:19,945 INFO L185 CegarLoopUtils]: At program point L20(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,946 INFO L185 CegarLoopUtils]: At program point L20-1(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,946 INFO L185 CegarLoopUtils]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,946 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,946 INFO L185 CegarLoopUtils]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2021-02-22 01:57:19,946 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L20-5(lines 20 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: false [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,947 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,948 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,948 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,948 INFO L185 CegarLoopUtils]: At program point L21-3(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,948 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L21-4(line 21) the Hoare annotation is: (and |main_#t~short15| (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L21-6(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short16|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L21-7(line 21) the Hoare annotation is: false [2021-02-22 01:57:19,949 INFO L185 CegarLoopUtils]: At program point L21-8(line 21) the Hoare annotation is: false [2021-02-22 01:57:19,950 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 14 34) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2021-02-22 01:57:19,950 INFO L185 CegarLoopUtils]: At program point L21-9(line 21) the Hoare annotation is: false [2021-02-22 01:57:19,950 INFO L185 CegarLoopUtils]: At program point L21-10(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem13| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem14| |main_#t~mem13|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,950 INFO L185 CegarLoopUtils]: At program point L21-11(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,950 INFO L185 CegarLoopUtils]: At program point L21-12(line 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,951 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) the Hoare annotation is: false [2021-02-22 01:57:19,951 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:19,951 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 14 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-22 01:57:19,951 INFO L185 CegarLoopUtils]: At program point L26(lines 26 28) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem17| 60) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,951 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: false [2021-02-22 01:57:19,952 INFO L185 CegarLoopUtils]: At program point L26-2(line 26) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:19,952 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,952 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,952 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-22 01:57:19,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:57:19 BoogieIcfgContainer [2021-02-22 01:57:19,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:57:19,974 INFO L168 Benchmark]: Toolchain (without parser) took 4624.24 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 131.6 MB in the beginning and 151.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 106.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:19,974 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:57:19,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.65 ms. Allocated memory is still 154.1 MB. Free memory was 130.5 MB in the beginning and 121.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:19,976 INFO L168 Benchmark]: Boogie Preprocessor took 39.50 ms. Allocated memory is still 154.1 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:19,977 INFO L168 Benchmark]: RCFGBuilder took 656.59 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 130.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:19,978 INFO L168 Benchmark]: TraceAbstraction took 3661.91 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 130.2 MB in the beginning and 151.3 MB in the end (delta: -21.1 MB). Peak memory consumption was 105.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:19,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 241.65 ms. Allocated memory is still 154.1 MB. Free memory was 130.5 MB in the beginning and 121.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.50 ms. Allocated memory is still 154.1 MB. Free memory was 121.0 MB in the beginning and 119.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 656.59 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 130.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3661.91 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 130.2 MB in the beginning and 151.3 MB in the end (delta: -21.1 MB). Peak memory consumption was 105.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 9]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 223 SDtfs, 158 SDslu, 456 SDs, 0 SdLazy, 420 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 76 LocationsWithAnnotation, 76 PreInvPairs, 93 NumberOfFragments, 648 HoareAnnotationTreeSize, 76 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 76 FomulaSimplificationsInter, 746 FormulaSimplificationTreeSizeReductionInter, 0.7s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...