/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test22-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:04:59,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:04:59,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:04:59,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:04:59,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:04:59,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:04:59,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:04:59,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:04:59,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:04:59,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:04:59,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:04:59,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:04:59,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:04:59,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:04:59,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:04:59,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:04:59,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:04:59,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:04:59,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:04:59,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:04:59,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:04:59,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:04:59,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:04:59,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:04:59,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 01:04:59,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 01:04:59,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 01:04:59,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 01:04:59,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 01:04:59,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 01:04:59,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:04:59,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:04:59,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:04:59,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:04:59,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:04:59,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:04:59,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:04:59,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:04:59,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:04:59,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:04:59,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:04:59,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:04:59,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:04:59,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:04:59,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:04:59,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:04:59,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:04:59,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:04:59,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:04:59,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:04:59,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:04:59,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:04:59,466 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:04:59,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:04:59,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:04:59,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:04:59,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:04:59,467 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:04:59,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:04:59,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:04:59,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:04:59,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:04:59,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:04:59,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:04:59,469 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:04:59,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:04:59,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:04:59,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:04:59,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:04:59,935 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:04:59,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test22-2.c [2020-10-24 01:05:00,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0feb54/d97d658e151a488095c1b93adc6586a2/FLAGdcb659e07 [2020-10-24 01:05:00,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:05:00,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test22-2.c [2020-10-24 01:05:00,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0feb54/d97d658e151a488095c1b93adc6586a2/FLAGdcb659e07 [2020-10-24 01:05:01,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0feb54/d97d658e151a488095c1b93adc6586a2 [2020-10-24 01:05:01,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:05:01,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:05:01,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:05:01,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:05:01,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:05:01,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f80626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01, skipping insertion in model container [2020-10-24 01:05:01,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:05:01,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:05:01,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:05:01,348 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:05:01,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:05:01,418 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:05:01,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01 WrapperNode [2020-10-24 01:05:01,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:05:01,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:05:01,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:05:01,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:05:01,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (1/1) ... [2020-10-24 01:05:01,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:05:01,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:05:01,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:05:01,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:05:01,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (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 [2020-10-24 01:05:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:05:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:05:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:05:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-24 01:05:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-10-24 01:05:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-24 01:05:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:05:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:05:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:05:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:05:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:05:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:05:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-24 01:05:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-24 01:05:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:05:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-10-24 01:05:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-24 01:05:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:05:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:05:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:05:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:05:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:05:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:05:02,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:05:02,142 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 01:05:02,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:02 BoogieIcfgContainer [2020-10-24 01:05:02,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:05:02,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:05:02,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:05:02,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:05:02,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:05:01" (1/3) ... [2020-10-24 01:05:02,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7191e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:02, skipping insertion in model container [2020-10-24 01:05:02,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:01" (2/3) ... [2020-10-24 01:05:02,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7191e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:02, skipping insertion in model container [2020-10-24 01:05:02,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:02" (3/3) ... [2020-10-24 01:05:02,153 INFO L111 eAbstractionObserver]: Analyzing ICFG test22-2.c [2020-10-24 01:05:02,165 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:05:02,171 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:05:02,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:05:02,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:05:02,206 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:05:02,206 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:05:02,206 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:05:02,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:05:02,206 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:05:02,206 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:05:02,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:05:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-10-24 01:05:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-24 01:05:02,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:05:02,238 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:05:02,239 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:05:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:05:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1117705011, now seen corresponding path program 1 times [2020-10-24 01:05:02,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:05:02,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247833795] [2020-10-24 01:05:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:05:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:05:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:05:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-24 01:05:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-24 01:05:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:05:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-24 01:05:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-24 01:05:02,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247833795] [2020-10-24 01:05:02,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:05:02,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:05:02,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213024874] [2020-10-24 01:05:02,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:05:02,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:05:02,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:05:02,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:05:02,711 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 4 states. [2020-10-24 01:05:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:05:03,196 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2020-10-24 01:05:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:05:03,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2020-10-24 01:05:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:05:03,209 INFO L225 Difference]: With dead ends: 117 [2020-10-24 01:05:03,209 INFO L226 Difference]: Without dead ends: 85 [2020-10-24 01:05:03,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:05:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-24 01:05:03,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-24 01:05:03,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-24 01:05:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-10-24 01:05:03,285 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 89 [2020-10-24 01:05:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:05:03,287 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-10-24 01:05:03,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:05:03,288 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-10-24 01:05:03,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-24 01:05:03,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:05:03,292 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:05:03,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:05:03,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:05:03,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:05:03,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1027369886, now seen corresponding path program 1 times [2020-10-24 01:05:03,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:05:03,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28576966] [2020-10-24 01:05:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:05:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:05:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:05:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-24 01:05:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-24 01:05:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:05:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-24 01:05:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-24 01:05:03,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28576966] [2020-10-24 01:05:03,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:05:03,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:05:03,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809804068] [2020-10-24 01:05:03,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:05:03,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:05:03,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:05:03,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:05:03,560 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 5 states. [2020-10-24 01:05:04,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:05:04,026 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2020-10-24 01:05:04,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 01:05:04,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-10-24 01:05:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:05:04,029 INFO L225 Difference]: With dead ends: 113 [2020-10-24 01:05:04,029 INFO L226 Difference]: Without dead ends: 85 [2020-10-24 01:05:04,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-24 01:05:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-24 01:05:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-24 01:05:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-24 01:05:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2020-10-24 01:05:04,071 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 91 [2020-10-24 01:05:04,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:05:04,072 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2020-10-24 01:05:04,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:05:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2020-10-24 01:05:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-24 01:05:04,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:05:04,076 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:05:04,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:05:04,077 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:05:04,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:05:04,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1152316641, now seen corresponding path program 1 times [2020-10-24 01:05:04,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:05:04,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300717557] [2020-10-24 01:05:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:05:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:05:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:05:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-24 01:05:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-24 01:05:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-24 01:05:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-24 01:05:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-24 01:05:04,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300717557] [2020-10-24 01:05:04,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:05:04,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-24 01:05:04,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310846795] [2020-10-24 01:05:04,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:05:04,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:05:04,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:05:04,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:05:04,597 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 14 states. [2020-10-24 01:05:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:05:06,977 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2020-10-24 01:05:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-24 01:05:06,978 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2020-10-24 01:05:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:05:06,982 INFO L225 Difference]: With dead ends: 172 [2020-10-24 01:05:06,982 INFO L226 Difference]: Without dead ends: 157 [2020-10-24 01:05:06,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2020-10-24 01:05:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-24 01:05:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 114. [2020-10-24 01:05:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-24 01:05:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-24 01:05:07,038 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 93 [2020-10-24 01:05:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:05:07,040 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-24 01:05:07,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:05:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-24 01:05:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-24 01:05:07,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:05:07,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:05:07,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:05:07,048 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:05:07,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:05:07,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1012289407, now seen corresponding path program 1 times [2020-10-24 01:05:07,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:05:07,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050585985] [2020-10-24 01:05:07,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:05:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 01:05:07,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 01:05:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 01:05:07,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 01:05:07,203 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 01:05:07,203 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 01:05:07,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:05:07,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:05:07 BoogieIcfgContainer [2020-10-24 01:05:07,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:05:07,310 INFO L168 Benchmark]: Toolchain (without parser) took 6222.95 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 127.4 MB in the beginning and 194.9 MB in the end (delta: -67.4 MB). Peak memory consumption was 100.3 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:07,312 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 126.4 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:05:07,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:07,317 INFO L168 Benchmark]: Boogie Preprocessor took 85.76 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:07,318 INFO L168 Benchmark]: RCFGBuilder took 635.90 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 124.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:07,319 INFO L168 Benchmark]: TraceAbstraction took 5160.71 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.3 MB in the beginning and 194.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:07,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 126.4 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 319.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.76 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 635.90 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 124.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5160.71 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.3 MB in the beginning and 194.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 95.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] struct dummy d1, d2; VAL [\old(d1)=60, \old(d1)=52, \old(d2)=54, \old(d2)=58, d1={9:0}, d2={3:0}] [L34] CALL init() VAL [d1={9:0}, d2={3:0}] [L15] d1.a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=10, d1={9:0}, d2={3:0}] [L16] d1.b = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-1, d1={9:0}, d2={3:0}] [L18] d2.a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=23, d1={9:0}, d2={3:0}] [L19] d2.b = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2, d1={9:0}, d2={3:0}] [L34] RET init() VAL [d1={9:0}, d2={3:0}] [L35] CALL, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={9:0}, d1={9:0}, d2={3:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); VAL [\result={9:0}, __VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={9:0}, d1={9:0}, d2={3:0}] [L35] RET, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}, get_dummy()={9:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); VAL [d1={9:0}, d2={3:0}, get_dummy()={9:0}, pd1={9:0}] [L35] CALL, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={9:0}, d1={9:0}, d2={3:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); VAL [\result={9:0}, __VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={9:0}, d1={9:0}, d2={3:0}] [L35] RET, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}, get_dummy()={9:0}, pd1={9:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); VAL [d1={9:0}, d2={3:0}, get_dummy()={9:0}, pd1={9:0}, pd2={9:0}] [L35] CALL, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={3:0}, d1={9:0}, d2={3:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); VAL [\result={3:0}, __VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={3:0}, d1={9:0}, d2={3:0}] [L35] RET, EXPR get_dummy() VAL [d1={9:0}, d2={3:0}, get_dummy()={3:0}, pd1={9:0}, pd2={9:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); VAL [d1={9:0}, d2={3:0}, get_dummy()={3:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L36] int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d1={9:0}, d2={3:0}, i=0, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={9:0}, d2={3:0}, i=0, pd1={9:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={9:0}, pd3={3:0}] [L37] EXPR (*pd2).a VAL [(*pd2).a=10, d1={9:0}, d2={3:0}, i=0, pd1={9:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={9:0}, pd3={3:0}] [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=10, d1={9:0}, d2={3:0}, i=0, pd1={9:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={9:0}, pd3={3:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=10, d1={9:0}, d2={3:0}, i=0, pd1={9:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={9:0}, pd3={3:0}] [L38] int *pa = &pd1->a; VAL [d1={9:0}, d2={3:0}, i=0, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L39] EXPR pd3->a VAL [d1={9:0}, d2={3:0}, i=0, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}, pd3->a=23] [L39] i = pd3->a - 10 VAL [d1={9:0}, d2={3:0}, i=13, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}, pd3->a=23] [L40] EXPR \read(*pa) VAL [\read(*pa)=10, d1={9:0}, d2={3:0}, i=13, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L40] COND FALSE !(i < *pa) VAL [\read(*pa)=10, d1={9:0}, d2={3:0}, i=13, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L43] CALL, EXPR check(pd2, i) VAL [\old(i)=13, d1={9:0}, d2={3:0}, s1={9:0}] [L29] EXPR s1->a VAL [\old(i)=13, d1={9:0}, d2={3:0}, i=13, s1={9:0}, s1={9:0}, s1->a=10] [L29] return s1->a == i; VAL [\old(i)=13, \result=0, d1={9:0}, d2={3:0}, i=13, s1={9:0}, s1={9:0}, s1->a=10] [L43] RET, EXPR check(pd2, i) VAL [check(pd2, i)=0, d1={9:0}, d2={3:0}, i=13, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L43] COND TRUE !check(pd2, i) VAL [check(pd2, i)=0, d1={9:0}, d2={3:0}, i=13, pa={9:0}, pd1={9:0}, pd2={9:0}, pd3={3:0}] [L50] CALL reach_error() VAL [d1={9:0}, d2={3:0}] [L3] __assert_fail("0", "test22-2.c", 3, "reach_error") VAL [d1={9:0}, d2={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 221 SDtfs, 410 SDslu, 95 SDs, 0 SdLazy, 1334 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 55230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 58/63 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 incorrect! Received shutdown request...