/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:18:31,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:18:31,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:18:31,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:18:31,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:18:31,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:18:31,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:18:31,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:18:31,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:18:31,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:18:31,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:18:31,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:18:31,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:18:31,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:18:31,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:18:31,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:18:31,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:18:31,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:18:31,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:18:31,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:18:31,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:18:31,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:18:31,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:18:31,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:18:31,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:18:31,774 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 16:18:31,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:18:31,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:18:31,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:18:31,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:18:31,790 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:18:31,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:18:31,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:18:31,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:18:31,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:18:31,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:18:31,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:18:31,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:18:31,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:18:31,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:18:31,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:18:31,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:18:31,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:18:31,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:18:31,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:18:31,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:18:31,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:18:31,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:18:31,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:18:31,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:18:31,795 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 -> NUM_VARIABLES 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 -> 2 [2020-07-21 16:18:32,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:18:32,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:18:32,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:18:32,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:18:32,127 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:18:32,128 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-07-21 16:18:32,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d74a3f7f/390575cf19cb44ff8c449f541ca823e2/FLAGb731ffb32 [2020-07-21 16:18:32,692 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:18:32,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-07-21 16:18:32,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d74a3f7f/390575cf19cb44ff8c449f541ca823e2/FLAGb731ffb32 [2020-07-21 16:18:33,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d74a3f7f/390575cf19cb44ff8c449f541ca823e2 [2020-07-21 16:18:33,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:18:33,084 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:18:33,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:18:33,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:18:33,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:18:33,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a36400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33, skipping insertion in model container [2020-07-21 16:18:33,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:18:33,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:18:33,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:18:33,281 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:18:33,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:18:33,312 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:18:33,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33 WrapperNode [2020-07-21 16:18:33,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:18:33,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:18:33,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:18:33,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:18:33,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (1/1) ... [2020-07-21 16:18:33,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:18:33,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:18:33,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:18:33,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:18:33,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (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 16:18:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:18:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:18:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-21 16:18:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-07-21 16:18:33,483 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-07-21 16:18:33,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:18:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:18:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-21 16:18:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-07-21 16:18:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-07-21 16:18:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:18:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:18:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:18:33,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:18:33,648 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 16:18:33,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:18:33 BoogieIcfgContainer [2020-07-21 16:18:33,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:18:33,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:18:33,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:18:33,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:18:33,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:18:33" (1/3) ... [2020-07-21 16:18:33,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8df09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:18:33, skipping insertion in model container [2020-07-21 16:18:33,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:18:33" (2/3) ... [2020-07-21 16:18:33,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8df09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:18:33, skipping insertion in model container [2020-07-21 16:18:33,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:18:33" (3/3) ... [2020-07-21 16:18:33,660 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2020-07-21 16:18:33,671 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:18:33,679 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:18:33,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:18:33,719 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:18:33,720 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:18:33,720 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:18:33,720 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:18:33,720 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:18:33,720 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:18:33,721 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:18:33,721 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:18:33,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-21 16:18:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 16:18:33,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:18:33,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:18:33,749 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:18:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:18:33,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2008850771, now seen corresponding path program 1 times [2020-07-21 16:18:33,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:18:33,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508023936] [2020-07-21 16:18:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:18:33,831 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:18:33,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:18:33,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:18:33,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:18:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:18:33,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:18:33,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508023936] [2020-07-21 16:18:33,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:18:33,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 16:18:33,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091625821] [2020-07-21 16:18:33,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:18:33,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:18:33,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:18:33,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:18:33,980 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-07-21 16:18:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:18:34,074 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-07-21 16:18:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:18:34,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-07-21 16:18:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:18:34,084 INFO L225 Difference]: With dead ends: 30 [2020-07-21 16:18:34,084 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:18:34,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:18:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:18:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:18:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:18:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:18:34,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-21 16:18:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:18:34,119 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:18:34,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:18:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:18:34,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:18:34,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:18:34,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:18:34,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:18:34,397 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:18:34,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:18:34,398 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-07-21 16:18:34,398 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 5 8) no Hoare annotation was computed. [2020-07-21 16:18:34,398 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 5 8) no Hoare annotation was computed. [2020-07-21 16:18:34,398 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2020-07-21 16:18:34,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:18:34,399 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 16:18:34,399 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:18:34,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:18:34,400 INFO L268 CegarLoopResult]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-07-21 16:18:34,400 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 15 24) no Hoare annotation was computed. [2020-07-21 16:18:34,400 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 15 24) the Hoare annotation is: true [2020-07-21 16:18:34,400 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 15 24) no Hoare annotation was computed. [2020-07-21 16:18:34,400 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-21 16:18:34,401 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 16:18:34,401 INFO L271 CegarLoopResult]: At program point firstFunctionENTRY(lines 26 30) the Hoare annotation is: true [2020-07-21 16:18:34,401 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: false [2020-07-21 16:18:34,401 INFO L268 CegarLoopResult]: For program point L29-3(lines 26 30) no Hoare annotation was computed. [2020-07-21 16:18:34,401 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 26 30) no Hoare annotation was computed. [2020-07-21 16:18:34,402 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 32 35) the Hoare annotation is: true [2020-07-21 16:18:34,402 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 32 35) no Hoare annotation was computed. [2020-07-21 16:18:34,402 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 32 35) no Hoare annotation was computed. [2020-07-21 16:18:34,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:18:34 BoogieIcfgContainer [2020-07-21 16:18:34,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:18:34,412 INFO L168 Benchmark]: Toolchain (without parser) took 1328.01 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 137.9 MB in the end (delta: -35.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,413 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.78 ms. Allocated memory is still 138.4 MB. Free memory was 101.8 MB in the beginning and 92.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,415 INFO L168 Benchmark]: Boogie Preprocessor took 28.00 ms. Allocated memory is still 138.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,416 INFO L168 Benchmark]: RCFGBuilder took 311.37 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.2 MB in the beginning and 171.4 MB in the end (delta: -80.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,417 INFO L168 Benchmark]: TraceAbstraction took 755.26 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 137.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:18:34,422 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.78 ms. Allocated memory is still 138.4 MB. Free memory was 101.8 MB in the beginning and 92.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.00 ms. Allocated memory is still 138.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.37 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.2 MB in the beginning and 171.4 MB in the end (delta: -80.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 755.26 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 137.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 9 SDslu, 44 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 392 SizeOfPredicates, 2 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...