/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/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:57:22,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:57:22,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:57:22,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:57:22,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:57:22,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:57:22,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:57:22,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:57:22,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:57:22,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:57:22,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:57:22,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:57:22,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:57:22,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:57:22,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:57:22,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:57:22,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:57:22,500 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 01:57:22,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:57:22,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:57:22,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:57:22,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:57:22,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:57:22,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:57:22,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:57:22,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:57:22,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:57:22,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:57:22,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:57:22,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:57:22,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:57:22,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:57:22,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:57:22,536 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:57:22,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:57:22,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:57:22,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:57:22,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:57:22,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:57:22,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:57:22,539 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:57:22,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:57:22,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:57:22,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:57:22,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:57:22,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:57:22,982 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:57:22,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2021-02-22 01:57:23,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d703bfe/528379050ef34fde86885ca7fcd2ab16/FLAG036bf2d6b [2021-02-22 01:57:23,831 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:57:23,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2021-02-22 01:57:23,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d703bfe/528379050ef34fde86885ca7fcd2ab16/FLAG036bf2d6b [2021-02-22 01:57:23,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1d703bfe/528379050ef34fde86885ca7fcd2ab16 [2021-02-22 01:57:23,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:57:23,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:57:23,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:57:23,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:57:23,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:57:23,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:57:23" (1/1) ... [2021-02-22 01:57:23,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4581953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:23, skipping insertion in model container [2021-02-22 01:57:23,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:57:23" (1/1) ... [2021-02-22 01:57:23,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:57:23,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:57:24,108 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/test14.c[804,817] [2021-02-22 01:57:24,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:57:24,124 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:57:24,146 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/test14.c[804,817] [2021-02-22 01:57:24,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:57:24,168 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:57:24,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24 WrapperNode [2021-02-22 01:57:24,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:57:24,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:57:24,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:57:24,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:57:24,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (1/1) ... [2021-02-22 01:57:24,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:57:24,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:57:24,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:57:24,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:57:24,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (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 01:57:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:57:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:57:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:57:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-02-22 01:57:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:57:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:57:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:57:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:57:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:57:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:57:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-22 01:57:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-02-22 01:57:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:57:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:57:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:57:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:57:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:57:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:57:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:57:24,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:57:24,869 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:57:24,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:57:24 BoogieIcfgContainer [2021-02-22 01:57:24,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:57:24,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:57:24,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:57:24,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:57:24,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:57:23" (1/3) ... [2021-02-22 01:57:24,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef7cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:57:24, skipping insertion in model container [2021-02-22 01:57:24,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:57:24" (2/3) ... [2021-02-22 01:57:24,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef7cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:57:24, skipping insertion in model container [2021-02-22 01:57:24,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:57:24" (3/3) ... [2021-02-22 01:57:24,881 INFO L111 eAbstractionObserver]: Analyzing ICFG test14.c [2021-02-22 01:57:24,889 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:57:24,895 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:57:24,920 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:57:24,946 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:57:24,946 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:57:24,947 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:57:24,947 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:57:24,947 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:57:24,947 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:57:24,947 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:57:24,947 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:57:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2021-02-22 01:57:24,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-22 01:57:24,976 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:24,977 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 01:57:24,978 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:24,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:24,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1961164284, now seen corresponding path program 1 times [2021-02-22 01:57:24,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:24,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507709725] [2021-02-22 01:57:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:25,087 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:25,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:25,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:57:25,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:57:25,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:25,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:25,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:25,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:25,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:25,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:25,646 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 01:57:25,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507709725] [2021-02-22 01:57:25,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:25,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:57:25,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430706153] [2021-02-22 01:57:25,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:57:25,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:25,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:57:25,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:57:25,675 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 6 states. [2021-02-22 01:57:26,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:26,072 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2021-02-22 01:57:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-22 01:57:26,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2021-02-22 01:57:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:26,085 INFO L225 Difference]: With dead ends: 89 [2021-02-22 01:57:26,085 INFO L226 Difference]: Without dead ends: 56 [2021-02-22 01:57:26,089 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 01:57:26,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-02-22 01:57:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-02-22 01:57:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-02-22 01:57:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-02-22 01:57:26,144 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 48 [2021-02-22 01:57:26,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:26,145 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-02-22 01:57:26,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:57:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-02-22 01:57:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-22 01:57:26,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:26,147 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 01:57:26,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:57:26,148 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:26,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:26,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1897324467, now seen corresponding path program 1 times [2021-02-22 01:57:26,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:26,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819240107] [2021-02-22 01:57:26,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:26,153 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:26,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,356 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 01:57:26,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819240107] [2021-02-22 01:57:26,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:26,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 01:57:26,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275768801] [2021-02-22 01:57:26,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 01:57:26,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 01:57:26,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:57:26,360 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 5 states. [2021-02-22 01:57:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:26,611 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2021-02-22 01:57:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:57:26,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2021-02-22 01:57:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:26,615 INFO L225 Difference]: With dead ends: 64 [2021-02-22 01:57:26,615 INFO L226 Difference]: Without dead ends: 56 [2021-02-22 01:57:26,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:57:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-02-22 01:57:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-02-22 01:57:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-02-22 01:57:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-02-22 01:57:26,632 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 51 [2021-02-22 01:57:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:26,632 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-02-22 01:57:26,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 01:57:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-02-22 01:57:26,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-22 01:57:26,635 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:57:26,635 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 01:57:26,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:57:26,635 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:57:26,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:57:26,636 INFO L82 PathProgramCache]: Analyzing trace with hash -386909202, now seen corresponding path program 1 times [2021-02-22 01:57:26,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:57:26,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538613876] [2021-02-22 01:57:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:57:26,640 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:57:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:57:26,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:57:26,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:57:26,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:26,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-22 01:57:26,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:57:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-22 01:57:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:57:26,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:57:26,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:57:26,964 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 01:57:26,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538613876] [2021-02-22 01:57:26,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:57:26,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 01:57:26,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216608552] [2021-02-22 01:57:26,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 01:57:26,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:57:26,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 01:57:26,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 01:57:26,968 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 8 states. [2021-02-22 01:57:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:57:27,320 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-02-22 01:57:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:57:27,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2021-02-22 01:57:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:57:27,322 INFO L225 Difference]: With dead ends: 56 [2021-02-22 01:57:27,322 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 01:57:27,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-02-22 01:57:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 01:57:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 01:57:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 01:57:27,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 01:57:27,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2021-02-22 01:57:27,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:57:27,325 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 01:57:27,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 01:57:27,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 01:57:27,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 01:57:27,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:57:27,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 01:57:28,324 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 01:57:28,324 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 01:57:28,324 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,325 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,326 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 7) the Hoare annotation is: true [2021-02-22 01:57:28,326 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 01:57:28,326 INFO L192 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: true [2021-02-22 01:57:28,326 INFO L192 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point L7-2(line 7) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point get_dummyFINAL(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:28,327 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point L11-3(line 11) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point L11-4(line 11) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point L11-5(line 11) the Hoare annotation is: true [2021-02-22 01:57:28,328 INFO L192 CegarLoopUtils]: At program point get_dummyEXIT(lines 9 12) the Hoare annotation is: true [2021-02-22 01:57:28,329 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,329 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,329 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,329 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 01:57:28,329 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: false [2021-02-22 01:57:28,329 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2021-02-22 01:57:28,329 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,330 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,330 INFO L185 CegarLoopUtils]: At program point L19-2(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,330 INFO L185 CegarLoopUtils]: At program point L19-3(line 19) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,330 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-22 01:57:28,330 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-22 01:57:28,331 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,331 INFO L185 CegarLoopUtils]: At program point L15-3(line 15) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,331 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 01:57:28,331 INFO L185 CegarLoopUtils]: At program point L15-5(line 15) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,331 INFO L185 CegarLoopUtils]: At program point L15-6(line 15) the Hoare annotation is: false [2021-02-22 01:57:28,332 INFO L185 CegarLoopUtils]: At program point L15-7(line 15) the Hoare annotation is: false [2021-02-22 01:57:28,332 INFO L185 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: false [2021-02-22 01:57:28,332 INFO L185 CegarLoopUtils]: At program point L20(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,332 INFO L185 CegarLoopUtils]: At program point L20-1(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (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)) [2021-02-22 01:57:28,332 INFO L185 CegarLoopUtils]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,333 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,333 INFO L185 CegarLoopUtils]: At program point L20-4(lines 20 21) the Hoare annotation is: false [2021-02-22 01:57:28,333 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,333 INFO L185 CegarLoopUtils]: At program point L20-5(lines 20 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|)) [2021-02-22 01:57:28,333 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,334 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (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)) [2021-02-22 01:57:28,334 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (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)) [2021-02-22 01:57:28,334 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (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)) [2021-02-22 01:57:28,334 INFO L185 CegarLoopUtils]: At program point L21-3(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,334 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,335 INFO L185 CegarLoopUtils]: At program point L21-4(line 21) the Hoare annotation is: (and |main_#t~short14| (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,335 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,335 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,335 INFO L185 CegarLoopUtils]: At program point L21-6(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (= |main_#t~mem12| |main_#t~mem13|) (not (= |main_~#c~0.base| 0)) (not |main_#t~short14|) (not |main_#t~short15|) (= main_~pa~0.base main_~pb~0.base) (= |main_#t~mem12| (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset)) (= main_~pb~0.offset main_~pa~0.offset)) [2021-02-22 01:57:28,335 INFO L185 CegarLoopUtils]: At program point L21-7(line 21) the Hoare annotation is: false [2021-02-22 01:57:28,336 INFO L185 CegarLoopUtils]: At program point L21-8(line 21) the Hoare annotation is: false [2021-02-22 01:57:28,336 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 14 29) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2021-02-22 01:57:28,336 INFO L185 CegarLoopUtils]: At program point L21-9(line 21) the Hoare annotation is: false [2021-02-22 01:57:28,336 INFO L185 CegarLoopUtils]: At program point L21-10(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,336 INFO L185 CegarLoopUtils]: At program point L21-11(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point L21-12(line 21) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) the Hoare annotation is: false [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point L22(lines 14 29) the Hoare annotation is: false [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,337 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,338 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2021-02-22 01:57:28,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:57:28 BoogieIcfgContainer [2021-02-22 01:57:28,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:57:28,359 INFO L168 Benchmark]: Toolchain (without parser) took 4495.65 ms. Allocated memory was 164.6 MB in the beginning and 209.7 MB in the end (delta: 45.1 MB). Free memory was 139.7 MB in the beginning and 111.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 116.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:28,360 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory was 137.4 MB in the beginning and 137.4 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:57:28,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.16 ms. Allocated memory is still 164.6 MB. Free memory was 138.5 MB in the beginning and 129.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:28,361 INFO L168 Benchmark]: Boogie Preprocessor took 39.65 ms. Allocated memory is still 164.6 MB. Free memory was 129.2 MB in the beginning and 127.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:28,362 INFO L168 Benchmark]: RCFGBuilder took 660.69 ms. Allocated memory is still 164.6 MB. Free memory was 127.6 MB in the beginning and 140.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:28,363 INFO L168 Benchmark]: TraceAbstraction took 3484.57 ms. Allocated memory was 164.6 MB in the beginning and 209.7 MB in the end (delta: 45.1 MB). Free memory was 140.2 MB in the beginning and 111.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:57:28,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory was 137.4 MB in the beginning and 137.4 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 291.16 ms. Allocated memory is still 164.6 MB. Free memory was 138.5 MB in the beginning and 129.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.65 ms. Allocated memory is still 164.6 MB. Free memory was 129.2 MB in the beginning and 127.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 660.69 ms. Allocated memory is still 164.6 MB. Free memory was 127.6 MB in the beginning and 140.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3484.57 ms. Allocated memory was 164.6 MB in the beginning and 209.7 MB in the end (delta: 45.1 MB). Free memory was 140.2 MB in the beginning and 111.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 116.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 113 SDslu, 308 SDs, 0 SdLazy, 295 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 71 PreInvPairs, 84 NumberOfFragments, 450 HoareAnnotationTreeSize, 71 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 71 FomulaSimplificationsInter, 624 FormulaSimplificationTreeSizeReductionInter, 0.8s 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...