/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_address.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:38:13,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:38:13,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:38:13,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:38:13,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:38:13,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:38:13,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:38:13,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:38:13,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:38:13,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:38:13,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:38:13,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:38:13,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:38:13,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:38:13,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:38:13,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:38:13,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:38:13,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:38:13,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:38:13,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:38:13,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:38:13,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:38:13,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:38:13,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:38:13,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:38:13,419 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:38:13,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:38:13,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:38:13,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:38:13,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:38:13,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:38:13,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:38:13,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:38:13,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:38:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:38:13,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:38:13,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:38:13,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:38:13,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:38:13,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:38:13,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:38:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:38:13,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:38:13,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:38:13,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:38:13,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:38:13,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:38:13,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:38:13,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:38:13,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:38:13,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:38:13,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:38:13,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:38:13,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:38:13,832 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:38:13,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-23 13:38:13,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1726b530a/04973e9ad560477e9ee0ffc47ab60cdc/FLAG8d5a3eeab [2021-02-23 13:38:14,691 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:38:14,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_address.c [2021-02-23 13:38:14,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1726b530a/04973e9ad560477e9ee0ffc47ab60cdc/FLAG8d5a3eeab [2021-02-23 13:38:15,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1726b530a/04973e9ad560477e9ee0ffc47ab60cdc [2021-02-23 13:38:15,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:38:15,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:38:15,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:38:15,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:38:15,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:38:15,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172489ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15, skipping insertion in model container [2021-02-23 13:38:15,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:38:15,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:38:15,236 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/test_address.c[293,306] [2021-02-23 13:38:15,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:38:15,266 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:38:15,281 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/test_address.c[293,306] [2021-02-23 13:38:15,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:38:15,302 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:38:15,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15 WrapperNode [2021-02-23 13:38:15,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:38:15,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:38:15,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:38:15,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:38:15,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (1/1) ... [2021-02-23 13:38:15,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:38:15,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:38:15,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:38:15,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:38:15,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (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 [2021-02-23 13:38:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:38:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:38:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:38:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 13:38:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-02-23 13:38:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_fail_path [2021-02-23 13:38:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:38:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:38:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:38:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:38:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:38:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 13:38:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-02-23 13:38:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure rr_fail_path [2021-02-23 13:38:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:38:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:38:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:38:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:38:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:38:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:38:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:38:15,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:38:15,758 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:38:15,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:38:15 BoogieIcfgContainer [2021-02-23 13:38:15,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:38:15,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:38:15,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:38:15,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:38:15,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:38:15" (1/3) ... [2021-02-23 13:38:15,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec42e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:38:15, skipping insertion in model container [2021-02-23 13:38:15,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:38:15" (2/3) ... [2021-02-23 13:38:15,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec42e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:38:15, skipping insertion in model container [2021-02-23 13:38:15,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:38:15" (3/3) ... [2021-02-23 13:38:15,771 INFO L111 eAbstractionObserver]: Analyzing ICFG test_address.c [2021-02-23 13:38:15,779 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:38:15,785 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:38:15,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:38:15,961 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:38:15,962 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:38:15,962 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:38:15,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:38:15,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:38:15,963 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:38:15,963 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:38:15,963 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:38:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2021-02-23 13:38:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-23 13:38:15,993 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:38:15,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:38:15,995 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:38:16,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:38:16,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1914250960, now seen corresponding path program 1 times [2021-02-23 13:38:16,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:38:16,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068625692] [2021-02-23 13:38:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:38:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:38:16,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:38:16,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:38:16,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:38:16,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:38:16,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:38:16,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:38:16,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:38:16,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:38:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:38:16,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:38:16,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:38:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:38:16,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068625692] [2021-02-23 13:38:16,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:38:16,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 13:38:16,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533892031] [2021-02-23 13:38:16,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 13:38:16,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:38:16,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 13:38:16,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-23 13:38:16,470 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2021-02-23 13:38:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:38:16,975 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-02-23 13:38:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 13:38:16,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2021-02-23 13:38:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:38:16,985 INFO L225 Difference]: With dead ends: 34 [2021-02-23 13:38:16,985 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:38:16,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-02-23 13:38:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:38:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:38:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:38:17,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:38:17,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-02-23 13:38:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:38:17,020 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:38:17,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 13:38:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:38:17,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:38:17,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:38:17,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:38:17,288 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 13:38:17,288 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 13:38:17,289 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 13:38:17,290 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:38:17,291 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:38:17,291 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:38:17,292 INFO L189 CegarLoopUtils]: For program point rr_fail_pathFINAL(lines 18 21) no Hoare annotation was computed. [2021-02-23 13:38:17,293 INFO L192 CegarLoopUtils]: At program point rr_fail_pathENTRY(lines 18 21) the Hoare annotation is: true [2021-02-23 13:38:17,293 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (or (not (= rr_fail_path_~pi.base 0)) (= |rr_fail_path_#in~pi.base| 0)) [2021-02-23 13:38:17,293 INFO L189 CegarLoopUtils]: For program point rr_fail_pathEXIT(lines 18 21) no Hoare annotation was computed. [2021-02-23 13:38:17,293 INFO L189 CegarLoopUtils]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-02-23 13:38:17,293 INFO L189 CegarLoopUtils]: For program point __blast_assertEXIT(lines 5 8) no Hoare annotation was computed. [2021-02-23 13:38:17,294 INFO L189 CegarLoopUtils]: For program point __blast_assertFINAL(lines 5 8) no Hoare annotation was computed. [2021-02-23 13:38:17,294 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2021-02-23 13:38:17,294 INFO L192 CegarLoopUtils]: At program point list_addENTRY(lines 14 16) the Hoare annotation is: true [2021-02-23 13:38:17,294 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-23 13:38:17,294 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (= |list_add_#in~new.base| 0) [2021-02-23 13:38:17,295 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-23 13:38:17,295 INFO L189 CegarLoopUtils]: For program point list_addEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-23 13:38:17,295 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:38:17,296 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:38:17,296 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:38:17,296 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:38:17,296 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 23 26) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 13:38:17,296 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 23 26) no Hoare annotation was computed. [2021-02-23 13:38:17,297 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (not (= |main_~#pi~0.base| 0)) [2021-02-23 13:38:17,297 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 23 26) no Hoare annotation was computed. [2021-02-23 13:38:17,297 INFO L189 CegarLoopUtils]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-02-23 13:38:17,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:38:17 BoogieIcfgContainer [2021-02-23 13:38:17,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:38:17,311 INFO L168 Benchmark]: Toolchain (without parser) took 2264.73 ms. Allocated memory is still 164.6 MB. Free memory was 140.3 MB in the beginning and 74.3 MB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:38:17,313 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 164.6 MB. Free memory was 137.3 MB in the beginning and 137.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:38:17,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.03 ms. Allocated memory is still 164.6 MB. Free memory was 139.3 MB in the beginning and 129.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:38:17,318 INFO L168 Benchmark]: Boogie Preprocessor took 37.58 ms. Allocated memory is still 164.6 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:38:17,323 INFO L168 Benchmark]: RCFGBuilder took 416.76 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 115.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:38:17,324 INFO L168 Benchmark]: TraceAbstraction took 1544.82 ms. Allocated memory is still 164.6 MB. Free memory was 114.7 MB in the beginning and 74.3 MB in the end (delta: 40.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:38:17,335 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 137.3 MB in the beginning and 137.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 245.03 ms. Allocated memory is still 164.6 MB. Free memory was 139.3 MB in the beginning and 129.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.58 ms. Allocated memory is still 164.6 MB. Free memory was 129.4 MB in the beginning and 128.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 416.76 ms. Allocated memory is still 164.6 MB. Free memory was 127.9 MB in the beginning and 115.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1544.82 ms. Allocated memory is still 164.6 MB. Free memory was 114.7 MB in the beginning and 74.3 MB in the end (delta: 40.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 47 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 58 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 135 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...