/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:41:37,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:41:37,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:41:37,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:41:37,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:41:37,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:41:37,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:41:37,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:41:37,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:41:37,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:41:37,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:41:37,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:41:37,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:41:37,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:41:37,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:41:37,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:41:37,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:41:37,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:41:37,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:41:37,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:41:37,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:41:37,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:41:37,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:41:37,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:41:37,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:41:37,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:41:37,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:41:37,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:41:37,403 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 [2020-07-21 22:41:37,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:41:37,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:41:37,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:41:37,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:41:37,435 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:41:37,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:41:37,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:41:37,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:41:37,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:41:37,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:41:37,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:41:37,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:41:37,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:41:37,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:41:37,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:41:37,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:41:37,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:41:37,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:41:37,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:41:37,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:41:37,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:41:37,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:41:37,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:41:37,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:41:37,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:41:37,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:41:37,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:37,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:41:37,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:41:37,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:41:37,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:41:37,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:41:37,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:41:37,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:41:37,939 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:41:37,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2020-07-21 22:41:38,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567124f4c/576a761c6756494da55d8a9868066b5e/FLAG26d27db72 [2020-07-21 22:41:38,780 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:41:38,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2020-07-21 22:41:38,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567124f4c/576a761c6756494da55d8a9868066b5e/FLAG26d27db72 [2020-07-21 22:41:39,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567124f4c/576a761c6756494da55d8a9868066b5e [2020-07-21 22:41:39,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:41:39,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:41:39,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:41:39,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:41:39,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:41:39,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b386b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39, skipping insertion in model container [2020-07-21 22:41:39,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:41:39,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:41:39,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:41:39,443 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:41:39,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:41:39,510 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:41:39,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39 WrapperNode [2020-07-21 22:41:39,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:41:39,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:41:39,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:41:39,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:41:39,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (1/1) ... [2020-07-21 22:41:39,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:41:39,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:41:39,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:41:39,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:41:39,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (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 [2020-07-21 22:41:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:41:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:41:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-07-21 22:41:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-07-21 22:41:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-21 22:41:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:41:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:41:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:41:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-21 22:41:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-07-21 22:41:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 22:41:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-07-21 22:41:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-21 22:41:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 22:41:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:41:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:41:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 22:41:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 22:41:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:41:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 22:41:40,265 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:41:40,266 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:41:40,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:41:40 BoogieIcfgContainer [2020-07-21 22:41:40,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:41:40,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:41:40,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:41:40,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:41:40,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:41:39" (1/3) ... [2020-07-21 22:41:40,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b46f693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:41:40, skipping insertion in model container [2020-07-21 22:41:40,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:41:39" (2/3) ... [2020-07-21 22:41:40,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b46f693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:41:40, skipping insertion in model container [2020-07-21 22:41:40,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:41:40" (3/3) ... [2020-07-21 22:41:40,296 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-07-21 22:41:40,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:41:40,343 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:41:40,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:41:40,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:41:40,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:41:40,505 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:41:40,505 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:41:40,505 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:41:40,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:41:40,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:41:40,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:41:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-07-21 22:41:40,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 22:41:40,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:41:40,565 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-07-21 22:41:40,566 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:41:40,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:41:40,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times [2020-07-21 22:41:40,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:41:40,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960104521] [2020-07-21 22:41:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:40,844 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:41:40,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:41:40,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-21 22:41:40,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:41:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:41:41,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:41:41,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960104521] [2020-07-21 22:41:41,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:41:41,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:41:41,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172919583] [2020-07-21 22:41:41,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:41:41,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:41:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:41:41,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:41:41,382 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 11 states. [2020-07-21 22:41:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:41:42,109 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-21 22:41:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:41:42,114 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-21 22:41:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:41:42,162 INFO L225 Difference]: With dead ends: 55 [2020-07-21 22:41:42,163 INFO L226 Difference]: Without dead ends: 29 [2020-07-21 22:41:42,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:41:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-21 22:41:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-21 22:41:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-21 22:41:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-07-21 22:41:42,254 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 29 [2020-07-21 22:41:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:41:42,255 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-07-21 22:41:42,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:41:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-21 22:41:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 22:41:42,260 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:41:42,260 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 22:41:42,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:42,469 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:41:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:41:42,469 INFO L82 PathProgramCache]: Analyzing trace with hash 337861081, now seen corresponding path program 1 times [2020-07-21 22:41:42,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:41:42,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403139526] [2020-07-21 22:41:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:42,589 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:41:42,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:41:42,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-21 22:41:42,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:41:42,718 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2020-07-21 22:41:42,728 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 22:41:42,750 INFO L624 ElimStorePlain]: treesize reduction 13, result has 23.5 percent of original size [2020-07-21 22:41:42,751 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 22:41:42,752 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2020-07-21 22:41:42,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:41:42,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:41:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 22:41:43,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403139526] [2020-07-21 22:41:43,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:41:43,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-07-21 22:41:43,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886501043] [2020-07-21 22:41:43,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 22:41:43,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:41:43,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 22:41:43,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-07-21 22:41:43,165 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 13 states. [2020-07-21 22:41:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:41:43,586 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2020-07-21 22:41:43,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:41:43,588 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2020-07-21 22:41:43,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:41:43,590 INFO L225 Difference]: With dead ends: 39 [2020-07-21 22:41:43,591 INFO L226 Difference]: Without dead ends: 26 [2020-07-21 22:41:43,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2020-07-21 22:41:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-21 22:41:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-21 22:41:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-21 22:41:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-07-21 22:41:43,604 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 29 [2020-07-21 22:41:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:41:43,605 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-07-21 22:41:43,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 22:41:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-21 22:41:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 22:41:43,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:41:43,608 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-07-21 22:41:43,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:43,825 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:41:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:41:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 924667095, now seen corresponding path program 1 times [2020-07-21 22:41:43,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:41:43,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066206638] [2020-07-21 22:41:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:43,957 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:41:43,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:41:43,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-21 22:41:43,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:41:44,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:41:44,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:41:44,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066206638] [2020-07-21 22:41:44,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:41:44,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:41:44,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419562196] [2020-07-21 22:41:44,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:41:44,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:41:44,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:41:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:41:44,232 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 11 states. [2020-07-21 22:41:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:41:44,603 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-07-21 22:41:44,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:41:44,604 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-21 22:41:44,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:41:44,606 INFO L225 Difference]: With dead ends: 26 [2020-07-21 22:41:44,606 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:41:44,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:41:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:41:44,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:41:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:41:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:41:44,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-21 22:41:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:41:44,609 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:41:44,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:41:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:41:44,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:41:44,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:41:44,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:41:45,271 INFO L268 CegarLoopResult]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2020-07-21 22:41:45,272 INFO L271 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: true [2020-07-21 22:41:45,272 INFO L268 CegarLoopResult]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2020-07-21 22:41:45,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:41:45,272 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:41:45,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:41:45,272 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2020-07-21 22:41:45,272 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2020-07-21 22:41:45,273 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-07-21 22:41:45,273 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2020-07-21 22:41:45,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:41:45,273 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 |~#d1~0.offset|) (not (= |~#d1~0.base| |~#d2~0.base|)) (= 0 |~#d2~0.offset|)) [2020-07-21 22:41:45,273 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:41:45,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:41:45,274 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-07-21 22:41:45,274 INFO L268 CegarLoopResult]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2020-07-21 22:41:45,274 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-07-21 22:41:45,274 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (or (and (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d2~0.offset|)) (not (= 0 |~#d1~0.offset|)) (not (= 0 |~#d2~0.offset|)) (and (= |~#d1~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d1~0.offset|)) (= |~#d1~0.base| |~#d2~0.base|)) [2020-07-21 22:41:45,274 INFO L268 CegarLoopResult]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2020-07-21 22:41:45,275 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-07-21 22:41:45,275 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-07-21 22:41:45,275 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: true [2020-07-21 22:41:45,276 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2020-07-21 22:41:45,276 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2020-07-21 22:41:45,276 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: (or (not (= 0 |~#d1~0.offset|)) (= |~#d1~0.base| |~#d2~0.base|) (not (= 0 |~#d2~0.offset|))) [2020-07-21 22:41:45,276 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (= main_~pd2~0.base main_~pd1~0.base))) (or (and (= main_~pd2~0.offset main_~pd1~0.offset) (= |~#d2~0.base| main_~pd1~0.base) (= main_~pd1~0.offset 0) .cse0) (not (= 0 |~#d1~0.offset|)) (not (= 0 |~#d2~0.offset|)) (and (= main_~pd2~0.offset 0) .cse0 (= |~#d1~0.base| main_~pd1~0.base) (= main_~pd1~0.offset |~#d1~0.offset|)) (= |~#d1~0.base| |~#d2~0.base|))) [2020-07-21 22:41:45,277 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-07-21 22:41:45,277 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-07-21 22:41:45,277 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2020-07-21 22:41:45,277 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2020-07-21 22:41:45,277 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2020-07-21 22:41:45,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:41:45 BoogieIcfgContainer [2020-07-21 22:41:45,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:41:45,314 INFO L168 Benchmark]: Toolchain (without parser) took 6227.24 ms. Allocated memory was 141.6 MB in the beginning and 253.2 MB in the end (delta: 111.7 MB). Free memory was 99.0 MB in the beginning and 180.3 MB in the end (delta: -81.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,315 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.04 ms. Allocated memory is still 141.6 MB. Free memory was 98.6 MB in the beginning and 88.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,318 INFO L168 Benchmark]: Boogie Preprocessor took 218.46 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 88.3 MB in the beginning and 179.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,319 INFO L168 Benchmark]: RCFGBuilder took 541.76 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 162.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,320 INFO L168 Benchmark]: TraceAbstraction took 5033.04 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 162.1 MB in the beginning and 180.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:41:45,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.6 MB. Free memory was 117.7 MB in the beginning and 117.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.04 ms. Allocated memory is still 141.6 MB. Free memory was 98.6 MB in the beginning and 88.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 218.46 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 88.3 MB in the beginning and 179.3 MB in the end (delta: -91.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 541.76 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 162.8 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5033.04 ms. Allocated memory was 201.9 MB in the beginning and 253.2 MB in the end (delta: 51.4 MB). Free memory was 162.1 MB in the beginning and 180.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (!(0 == d1) || d1 == d2) || !(0 == d2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 61 SDslu, 333 SDs, 0 SdLazy, 413 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 11 LocationsWithAnnotation, 15 PreInvPairs, 18 NumberOfFragments, 94 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 162 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 87 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 15512 SizeOfPredicates, 24 NumberOfNonLiveVariables, 451 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 9/16 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...