/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/test10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:12:33,622 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:12:33,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:12:33,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:12:33,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:12:33,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:12:33,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:12:33,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:12:33,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:12:33,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:12:33,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:12:33,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:12:33,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:12:33,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:12:33,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:12:33,685 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 01:12:33,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:12:33,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:12:33,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:12:33,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:12:33,704 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:12:33,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:12:33,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:12:33,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:12:33,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:12:33,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:12:33,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:12:33,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:12:33,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:12:33,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:12:33,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:12:33,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:12:33,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:12:33,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:12:33,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:12:33,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:12:33,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:12:33,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:12:33,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:12:33,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:12:33,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:12:33,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:12:33,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:12:33,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:12:33,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:12:33,709 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 01:12:34,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:12:34,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:12:34,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:12:34,061 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:12:34,061 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:12:34,063 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c [2020-07-21 01:12:34,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df71ea3d8/40279bd4df064fb3b1e522494164ad71/FLAGcb1cae903 [2020-07-21 01:12:34,788 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:12:34,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test10.c [2020-07-21 01:12:34,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df71ea3d8/40279bd4df064fb3b1e522494164ad71/FLAGcb1cae903 [2020-07-21 01:12:35,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df71ea3d8/40279bd4df064fb3b1e522494164ad71 [2020-07-21 01:12:35,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:12:35,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:12:35,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:12:35,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:12:35,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:12:35,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35, skipping insertion in model container [2020-07-21 01:12:35,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:12:35,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:12:35,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:12:35,496 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:12:35,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:12:35,552 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:12:35,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35 WrapperNode [2020-07-21 01:12:35,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:12:35,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:12:35,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:12:35,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:12:35,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (1/1) ... [2020-07-21 01:12:35,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:12:35,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:12:35,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:12:35,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:12:35,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (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 01:12:35,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:12:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:12:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-21 01:12:35,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:12:35,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:12:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:12:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-21 01:12:35,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 01:12:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 01:12:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:12:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 01:12:35,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 01:12:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:12:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 01:12:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 01:12:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-21 01:12:35,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:12:35,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 01:12:36,177 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:12:36,178 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 01:12:36,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:12:36 BoogieIcfgContainer [2020-07-21 01:12:36,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:12:36,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:12:36,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:12:36,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:12:36,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:12:35" (1/3) ... [2020-07-21 01:12:36,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190d96dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:12:36, skipping insertion in model container [2020-07-21 01:12:36,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:12:35" (2/3) ... [2020-07-21 01:12:36,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190d96dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:12:36, skipping insertion in model container [2020-07-21 01:12:36,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:12:36" (3/3) ... [2020-07-21 01:12:36,197 INFO L109 eAbstractionObserver]: Analyzing ICFG test10.c [2020-07-21 01:12:36,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:12:36,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:12:36,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:12:36,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:12:36,302 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:12:36,302 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:12:36,302 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:12:36,302 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:12:36,302 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:12:36,302 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:12:36,303 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:12:36,336 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-21 01:12:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 01:12:36,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:12:36,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:12:36,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:12:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:12:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash -320886355, now seen corresponding path program 1 times [2020-07-21 01:12:36,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:12:36,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416924060] [2020-07-21 01:12:36,367 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 01:12:36,745 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:12:36,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:12:36,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-21 01:12:36,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:12:36,884 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:36,885 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 96 [2020-07-21 01:12:36,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,899 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,906 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,908 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,910 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,911 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,915 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,917 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:36,921 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:36,992 INFO L624 ElimStorePlain]: treesize reduction 110, result has 16.0 percent of original size [2020-07-21 01:12:36,993 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:36,993 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:21 [2020-07-21 01:12:37,040 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_32|, |v_#memory_$Pointer$.base_32|], 2=[|v_#memory_$Pointer$.base_26|, |v_#memory_$Pointer$.offset_26|, |v_#memory_$Pointer$.base_27|, |v_#memory_$Pointer$.offset_27|]} [2020-07-21 01:12:37,100 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 01:12:37,101 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,196 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,233 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 01:12:37,234 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,308 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,329 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,331 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,411 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,425 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,428 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,468 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,478 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,480 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,513 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,524 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,526 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,558 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,559 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,560 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:213, output treesize:55 [2020-07-21 01:12:37,645 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 01:12:37,647 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,684 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,695 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 01:12:37,696 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,724 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,726 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,727 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:27 [2020-07-21 01:12:37,829 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,831 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,856 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,865 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:37,866 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:37,888 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:37,892 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:37,892 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:53 [2020-07-21 01:12:38,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:38,703 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 01:12:38,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:12:38,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416924060] [2020-07-21 01:12:38,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:12:38,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 01:12:38,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374437155] [2020-07-21 01:12:38,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:12:38,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:12:38,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:12:38,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:12:38,738 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2020-07-21 01:12:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:12:39,536 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-21 01:12:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:12:39,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-07-21 01:12:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:12:39,571 INFO L225 Difference]: With dead ends: 26 [2020-07-21 01:12:39,572 INFO L226 Difference]: Without dead ends: 15 [2020-07-21 01:12:39,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:12:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-21 01:12:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-21 01:12:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-21 01:12:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-21 01:12:39,680 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-07-21 01:12:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:12:39,681 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-21 01:12:39,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:12:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-21 01:12:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 01:12:39,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:12:39,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:12:39,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:12:39,900 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:12:39,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:12:39,901 INFO L82 PathProgramCache]: Analyzing trace with hash -320884433, now seen corresponding path program 1 times [2020-07-21 01:12:39,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:12:39,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456945392] [2020-07-21 01:12:39,902 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 01:12:40,774 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:12:40,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:12:40,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-21 01:12:40,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:12:40,805 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:40,806 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 122 [2020-07-21 01:12:40,808 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:40,809 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:40,811 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:40,812 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:40,812 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:12:40,815 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:40,902 INFO L624 ElimStorePlain]: treesize reduction 289, result has 9.7 percent of original size [2020-07-21 01:12:40,903 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:40,903 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:31 [2020-07-21 01:12:40,927 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-07-21 01:12:40,928 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:40,939 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:40,940 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:40,940 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:24 [2020-07-21 01:12:40,964 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_41|, |v_#memory_$Pointer$.offset_41|], 2=[|v_#memory_$Pointer$.base_35|, |v_#memory_$Pointer$.base_36|, |v_#memory_$Pointer$.offset_36|, |v_#memory_$Pointer$.offset_35|]} [2020-07-21 01:12:41,012 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 01:12:41,013 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,103 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,132 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 01:12:41,133 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,192 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,205 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:41,206 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,253 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,262 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:41,263 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,303 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,311 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,340 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,348 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:41,349 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,376 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,377 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,377 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:216, output treesize:58 [2020-07-21 01:12:41,422 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 01:12:41,423 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,463 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,471 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 01:12:41,472 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,498 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,499 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,500 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:70, output treesize:30 [2020-07-21 01:12:41,581 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:41,582 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,613 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,632 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 01:12:41,634 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:41,658 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:41,660 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:41,660 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:88, output treesize:66 [2020-07-21 01:12:41,804 INFO L440 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|, |v_#memory_int_24|], 2=[|v_#memory_$Pointer$.base_39|, |v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_39|, |v_#memory_$Pointer$.offset_38|, |v_#memory_$Pointer$.base_40|, |v_#memory_$Pointer$.offset_40|], 6=[|v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_43|, |v_#memory_$Pointer$.base_43|]} [2020-07-21 01:12:41,825 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:42,373 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 01:12:42,374 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:42,391 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:42,755 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 01:12:42,756 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:42,803 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:42,804 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 51 [2020-07-21 01:12:42,805 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:43,178 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-21 01:12:43,179 INFO L624 ElimStorePlain]: treesize reduction 20, result has 92.5 percent of original size [2020-07-21 01:12:43,189 INFO L544 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:43,361 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-21 01:12:43,362 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,370 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:43,497 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-21 01:12:43,498 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,507 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:43,601 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,606 INFO L544 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:43,694 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,701 INFO L544 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:43,782 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,790 INFO L544 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:43,857 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,867 INFO L544 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:43,943 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:43,960 INFO L544 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 01:12:44,013 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:44,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 01:12:44,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 01:12:44,025 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2020-07-21 01:12:44,026 INFO L544 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:44,063 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 01:12:44,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 01:12:44,069 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 58 [2020-07-21 01:12:44,073 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 1] term [2020-07-21 01:12:44,074 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:12:44,075 INFO L544 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2020-07-21 01:12:44,125 INFO L624 ElimStorePlain]: treesize reduction 9, result has 83.6 percent of original size [2020-07-21 01:12:44,126 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 13 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 01:12:44,127 INFO L244 ElimStorePlain]: Needed 14 recursive calls to eliminate 19 variables, input treesize:433, output treesize:11 [2020-07-21 01:12:44,149 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:12:44,181 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 01:12:44,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:12:44,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456945392] [2020-07-21 01:12:44,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:12:44,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:12:44,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100892771] [2020-07-21 01:12:44,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:12:44,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:12:44,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:12:44,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:12:44,192 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 10 states. [2020-07-21 01:12:44,720 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-07-21 01:12:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:12:44,963 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-21 01:12:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:12:44,964 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-07-21 01:12:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:12:44,965 INFO L225 Difference]: With dead ends: 15 [2020-07-21 01:12:44,965 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:12:44,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:12:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:12:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:12:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:12:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:12:44,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-21 01:12:44,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:12:44,969 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:12:44,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:12:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:12:44,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:12:45,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:12:45,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:12:45,562 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2020-07-21 01:12:45,667 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-07-21 01:12:45,689 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:12:45,690 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:12:45,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:12:45,690 INFO L268 CegarLoopResult]: For program point fEXIT(lines 9 14) no Hoare annotation was computed. [2020-07-21 01:12:45,690 INFO L264 CegarLoopResult]: At program point fENTRY(lines 9 14) the Hoare annotation is: (or (and (= ~pp2~0.base |old(~pp2~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset)) (= |~#b~0.base| |~#p1~0.base|) (= |~#p1~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.offset)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|) |~#b~0.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|)) (= |~#a~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.base)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (= |~#p2~0.base| |~#a~0.base|) (not (= |~#p1~0.offset| ~pp1~0.offset)) (= |~#b~0.base| |~#p2~0.base|) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|))) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= 0 |~#b~0.offset|)) (not (= |~#p1~0.base| ~pp1~0.base))) [2020-07-21 01:12:45,690 INFO L268 CegarLoopResult]: For program point fFINAL(lines 9 14) no Hoare annotation was computed. [2020-07-21 01:12:45,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:12:45,691 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 |~#b~0.offset|) (= 0 (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|)) (not (= |~#b~0.base| |~#p1~0.base|)) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= |~#p1~0.base| |~#p2~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|))) [2020-07-21 01:12:45,691 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:12:45,691 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:12:45,691 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-07-21 01:12:45,691 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p2~0.base|) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|))) (and (not (= ~pp2~0.base |~#a~0.base|)) (= (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|) (not (= ~pp2~0.base |~#p1~0.base|)) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| ~pp2~0.base) ~pp2~0.offset)) (not (= |~#b~0.base| ~pp2~0.base)) (= |~#p1~0.base| ~pp1~0.base) (= |~#p1~0.offset| ~pp1~0.offset) (= (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|) (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) ~pp2~0.offset) |~#b~0.offset|)) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |~#p1~0.base|) (not (= 0 |~#b~0.offset|))) [2020-07-21 01:12:45,692 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-07-21 01:12:45,692 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 49) the Hoare annotation is: (or (= 0 (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|)) (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p2~0.base|) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|))) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |~#p1~0.base|) (not (= 0 |~#b~0.offset|))) [2020-07-21 01:12:45,692 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 49) no Hoare annotation was computed. [2020-07-21 01:12:45,692 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 49) no Hoare annotation was computed. [2020-07-21 01:12:45,692 INFO L264 CegarLoopResult]: At program point L42(lines 16 49) the Hoare annotation is: (or (not (= 0 |~#b~0.offset|)) (= |~#p2~0.base| |~#b~0.base|) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|))) (= |~#p1~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|)) [2020-07-21 01:12:45,692 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-07-21 01:12:45,693 INFO L268 CegarLoopResult]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2020-07-21 01:12:45,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 01:12:45,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 01:12:45,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 01:12:45,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 01:12:45,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:12:45 BoogieIcfgContainer [2020-07-21 01:12:45,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:12:45,718 INFO L168 Benchmark]: Toolchain (without parser) took 10551.19 ms. Allocated memory was 137.4 MB in the beginning and 284.7 MB in the end (delta: 147.3 MB). Free memory was 100.3 MB in the beginning and 112.7 MB in the end (delta: -12.4 MB). Peak memory consumption was 134.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,719 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.51 ms. Allocated memory is still 137.4 MB. Free memory was 99.9 MB in the beginning and 89.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,720 INFO L168 Benchmark]: Boogie Preprocessor took 162.17 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 89.7 MB in the beginning and 180.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,721 INFO L168 Benchmark]: RCFGBuilder took 467.26 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 159.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,722 INFO L168 Benchmark]: TraceAbstraction took 9529.57 ms. Allocated memory was 201.9 MB in the beginning and 284.7 MB in the end (delta: 82.8 MB). Free memory was 159.2 MB in the beginning and 112.7 MB in the end (delta: 46.5 MB). Peak memory consumption was 129.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:12:45,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.51 ms. Allocated memory is still 137.4 MB. Free memory was 99.9 MB in the beginning and 89.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.17 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 89.7 MB in the beginning and 180.0 MB in the end (delta: -90.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.26 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 159.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9529.57 ms. Allocated memory was 201.9 MB in the beginning and 284.7 MB in the end (delta: 82.8 MB). Free memory was 159.2 MB in the beginning and 112.7 MB in the end (delta: 46.5 MB). Peak memory consumption was 129.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: 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: 16]: Loop Invariant [2020-07-21 01:12:45,736 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 01:12:45,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 01:12:45,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 01:12:45,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((!(0 == b) || p2 == b) || a == p1) || p2 == a) || !(0 == \old(#memory_$Pointer$)[p1][p1])) || p1 == b) || p2 == p1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 19 SDslu, 53 SDs, 0 SdLazy, 92 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 253 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 2 QuantifiedInterpolants, 9165 SizeOfPredicates, 36 NumberOfNonLiveVariables, 429 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...