/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 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 [2020-07-20 17:14:45,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:14:45,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:14:45,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:14:45,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:14:45,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:14:45,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:14:45,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:14:45,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:14:45,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:14:45,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:14:45,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:14:45,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:14:45,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:14:45,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:14:45,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:14:45,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:14:45,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:14:45,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:14:45,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:14:45,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:14:45,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:14:45,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:14:45,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:14:45,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:14:45,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:14:45,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:14:45,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:14:45,556 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 [2020-07-20 17:14:45,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:14:45,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:14:45,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:14:45,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:14:45,574 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:14:45,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:14:45,575 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:14:45,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:14:45,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:14:45,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:14:45,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:14:45,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:14:45,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:14:45,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:14:45,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:14:45,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:14:45,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:14:45,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:14:45,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:14:45,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:14:45,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:14:45,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:14:45,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:14:45,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:14:45,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:14:45,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:14:45,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:45,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:14:45,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:14:45,579 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 -> 4 [2020-07-20 17:14:45,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:14:45,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:14:45,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:14:45,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:14:45,892 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:14:45,892 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c [2020-07-20 17:14:45,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d04eabe4/d041ad4fe90e45ee99502007d6483b55/FLAGbeeca202c [2020-07-20 17:14:46,434 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:14:46,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test10.c [2020-07-20 17:14:46,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d04eabe4/d041ad4fe90e45ee99502007d6483b55/FLAGbeeca202c [2020-07-20 17:14:46,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d04eabe4/d041ad4fe90e45ee99502007d6483b55 [2020-07-20 17:14:46,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:14:46,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:14:46,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:14:46,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:14:46,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:14:46,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:14:46" (1/1) ... [2020-07-20 17:14:46,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24dcfc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:46, skipping insertion in model container [2020-07-20 17:14:46,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:14:46" (1/1) ... [2020-07-20 17:14:46,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:14:46,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:14:47,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:14:47,050 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:14:47,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:14:47,087 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:14:47,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47 WrapperNode [2020-07-20 17:14:47,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:14:47,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:14:47,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:14:47,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:14:47,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (1/1) ... [2020-07-20 17:14:47,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:14:47,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:14:47,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:14:47,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:14:47,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (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 [2020-07-20 17:14:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:14:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:14:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-20 17:14:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:14:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:14:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:14:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-20 17:14:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 17:14:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 17:14:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:14:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 17:14:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 17:14:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:14:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 17:14:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 17:14:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 17:14:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:14:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 17:14:47,698 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:14:47,699 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 17:14:47,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:14:47 BoogieIcfgContainer [2020-07-20 17:14:47,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:14:47,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:14:47,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:14:47,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:14:47,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:14:46" (1/3) ... [2020-07-20 17:14:47,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43439097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:14:47, skipping insertion in model container [2020-07-20 17:14:47,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:47" (2/3) ... [2020-07-20 17:14:47,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43439097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:14:47, skipping insertion in model container [2020-07-20 17:14:47,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:14:47" (3/3) ... [2020-07-20 17:14:47,712 INFO L109 eAbstractionObserver]: Analyzing ICFG test10.c [2020-07-20 17:14:47,722 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:14:47,728 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:14:47,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:14:47,762 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:14:47,763 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:14:47,763 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:14:47,763 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:14:47,763 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:14:47,763 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:14:47,763 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:14:47,763 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:14:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-20 17:14:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 17:14:47,787 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:47,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:14:47,789 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:47,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:47,796 INFO L82 PathProgramCache]: Analyzing trace with hash -320886355, now seen corresponding path program 1 times [2020-07-20 17:14:47,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:47,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604929488] [2020-07-20 17:14:47,805 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 [2020-07-20 17:14:48,132 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:14:48,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:14:48,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-20 17:14:48,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:14:48,282 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:48,283 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 133 [2020-07-20 17:14:48,295 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-07-20 17:14:48,296 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,298 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-07-20 17:14:48,299 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,304 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 4, 2, 1] term [2020-07-20 17:14:48,305 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,307 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 3, 2, 1] term [2020-07-20 17:14:48,308 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,310 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 2, 1] term [2020-07-20 17:14:48,310 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,315 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,318 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 3, 1] term [2020-07-20 17:14:48,318 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,320 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2020-07-20 17:14:48,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,323 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-07-20 17:14:48,323 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,327 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,329 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,331 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,335 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:14:48,337 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,338 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,342 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,343 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-20 17:14:48,345 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,347 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,349 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 17:14:48,351 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,352 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,354 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:14:48,356 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:14:48,357 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:48,362 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,499 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 [2020-07-20 17:14:48,500 INFO L624 ElimStorePlain]: treesize reduction 440, result has 5.4 percent of original size [2020-07-20 17:14:48,501 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,501 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:25 [2020-07-20 17:14:48,556 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|]} [2020-07-20 17:14:48,623 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2020-07-20 17:14:48,625 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,734 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-20 17:14:48,735 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:48,762 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2020-07-20 17:14:48,763 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,819 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:48,835 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 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 [2020-07-20 17:14:48,837 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,888 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:48,900 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 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 [2020-07-20 17:14:48,902 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,941 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:48,959 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 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 [2020-07-20 17:14:48,961 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:48,991 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,001 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 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 [2020-07-20 17:14:49,002 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,030 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,030 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,031 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:217, output treesize:59 [2020-07-20 17:14:49,091 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 [2020-07-20 17:14:49,093 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,127 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,134 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 [2020-07-20 17:14:49,135 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,161 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,163 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,164 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:71, output treesize:31 [2020-07-20 17:14:49,247 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 [2020-07-20 17:14:49,249 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,273 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,280 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 [2020-07-20 17:14:49,281 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:49,302 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:49,304 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. [2020-07-20 17:14:49,304 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:83, output treesize:61 [2020-07-20 17:14:49,455 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:49,657 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:49,785 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:14:49,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:14:49,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604929488] [2020-07-20 17:14:49,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:14:49,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 17:14:49,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857524363] [2020-07-20 17:14:49,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 17:14:49,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:14:50,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 17:14:50,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:14:50,008 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2020-07-20 17:14:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:14:50,527 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-20 17:14:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:14:50,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-07-20 17:14:50,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:14:50,558 INFO L225 Difference]: With dead ends: 26 [2020-07-20 17:14:50,559 INFO L226 Difference]: Without dead ends: 15 [2020-07-20 17:14:50,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-07-20 17:14:50,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-20 17:14:50,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-20 17:14:50,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-20 17:14:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-20 17:14:50,627 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-07-20 17:14:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:14:50,628 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-20 17:14:50,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 17:14:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-20 17:14:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 17:14:50,629 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:50,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:14:50,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:50,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash -320884433, now seen corresponding path program 1 times [2020-07-20 17:14:50,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:50,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108510439] [2020-07-20 17:14:50,847 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 [2020-07-20 17:14:51,376 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:14:51,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:14:51,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 51 conjunts are in the unsatisfiable core [2020-07-20 17:14:51,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:14:51,398 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,398 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 [2020-07-20 17:14:51,400 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:51,401 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 17:14:51,402 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:51,403 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:51,404 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:51,406 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,466 INFO L624 ElimStorePlain]: treesize reduction 273, result has 7.1 percent of original size [2020-07-20 17:14:51,467 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,467 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:21 [2020-07-20 17:14:51,490 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_40|, |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|]} [2020-07-20 17:14:51,531 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 [2020-07-20 17:14:51,532 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,591 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,602 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 [2020-07-20 17:14:51,602 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,647 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,658 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 [2020-07-20 17:14:51,660 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,694 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,701 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 [2020-07-20 17:14:51,702 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,727 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,736 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,756 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,761 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 [2020-07-20 17:14:51,762 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,785 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,786 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,786 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:207, output treesize:49 [2020-07-20 17:14:51,823 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 [2020-07-20 17:14:51,824 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,844 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,849 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 [2020-07-20 17:14:51,850 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,866 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,867 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,867 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:61, output treesize:21 [2020-07-20 17:14:51,944 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 [2020-07-20 17:14:51,945 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,964 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,969 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 [2020-07-20 17:14:51,970 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:51,986 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:51,988 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. [2020-07-20 17:14:51,988 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:53 [2020-07-20 17:14:52,093 INFO L440 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|, |v_#memory_int_24|], 2=[|v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.base_39|, |v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_39|, |v_#memory_$Pointer$.offset_38|, |v_#memory_$Pointer$.offset_40|], 6=[|v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_43|, |v_#memory_$Pointer$.base_42|]} [2020-07-20 17:14:52,103 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:52,281 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-20 17:14:52,281 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,332 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,333 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 183 treesize of output 63 [2020-07-20 17:14:52,334 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:52,599 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-07-20 17:14:52,601 INFO L624 ElimStorePlain]: treesize reduction 24, result has 91.2 percent of original size [2020-07-20 17:14:52,606 INFO L544 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-20 17:14:52,710 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-20 17:14:52,711 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,718 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:52,808 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,812 INFO L544 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-20 17:14:52,896 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,900 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:52,957 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:52,961 INFO L544 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-20 17:14:53,018 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:53,021 INFO L544 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:53,067 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:53,072 INFO L544 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-20 17:14:53,116 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 17:14:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 17:14:53,125 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 100 treesize of output 76 [2020-07-20 17:14:53,126 INFO L544 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:53,154 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:14:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-20 17:14:53,169 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 [2020-07-20 17:14:53,171 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 1] term [2020-07-20 17:14:53,172 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 17:14:53,173 INFO L544 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-07-20 17:14:53,209 INFO L624 ElimStorePlain]: treesize reduction 9, result has 82.7 percent of original size [2020-07-20 17:14:53,211 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 11 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:14:53,211 INFO L244 ElimStorePlain]: Needed 12 recursive calls to eliminate 17 variables, input treesize:428, output treesize:7 [2020-07-20 17:14:53,230 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:14:53,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:14:53,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:14:53,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108510439] [2020-07-20 17:14:53,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:14:53,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 17:14:53,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244006271] [2020-07-20 17:14:53,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 17:14:53,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:14:53,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 17:14:53,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:14:53,257 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 9 states. [2020-07-20 17:14:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:14:53,785 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-20 17:14:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 17:14:53,786 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-07-20 17:14:53,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:14:53,787 INFO L225 Difference]: With dead ends: 15 [2020-07-20 17:14:53,787 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:14:53,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-07-20 17:14:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:14:53,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:14:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:14:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:14:53,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-20 17:14:53,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:14:53,790 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:14:53,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 17:14:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:14:53,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:14:54,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:54,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:14:54,308 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 52 [2020-07-20 17:14:54,410 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:14:54,411 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:14:54,411 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:14:54,411 INFO L268 CegarLoopResult]: For program point fEXIT(lines 9 14) no Hoare annotation was computed. [2020-07-20 17:14:54,411 INFO L264 CegarLoopResult]: At program point fENTRY(lines 9 14) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.base)| ~pp1~0.base) ~pp1~0.offset) |~#a~0.base|)) (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)|) (= |~#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| |~#a~0.base|) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= |~#p1~0.base| ~pp1~0.base))) [2020-07-20 17:14:54,411 INFO L268 CegarLoopResult]: For program point fFINAL(lines 9 14) no Hoare annotation was computed. [2020-07-20 17:14:54,412 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:14:54,412 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#p1~0.base|)) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (not (= |~#p1~0.base| |~#p2~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|))) [2020-07-20 17:14:54,412 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:14:54,412 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:14:54,412 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-07-20 17:14:54,412 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|) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |~#p1~0.base|) (and (not (= ~pp2~0.base |~#a~0.base|)) (= |~#a~0.base| (select (select |#memory_$Pointer$.base| ~pp1~0.base) ~pp1~0.offset)) (not (= ~pp2~0.base ~pp1~0.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|)) (= |~#b~0.base| |~#a~0.base|)) [2020-07-20 17:14:54,413 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-07-20 17:14:54,413 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 49) the Hoare annotation is: true [2020-07-20 17:14:54,413 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 49) no Hoare annotation was computed. [2020-07-20 17:14:54,413 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 49) no Hoare annotation was computed. [2020-07-20 17:14:54,413 INFO L264 CegarLoopResult]: At program point L42(lines 16 49) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#b~0.base|) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|)) [2020-07-20 17:14:54,413 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-07-20 17:14:54,413 INFO L268 CegarLoopResult]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2020-07-20 17:14:54,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:14:54 BoogieIcfgContainer [2020-07-20 17:14:54,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:14:54,435 INFO L168 Benchmark]: Toolchain (without parser) took 7631.30 ms. Allocated memory was 138.4 MB in the beginning and 284.2 MB in the end (delta: 145.8 MB). Free memory was 103.2 MB in the beginning and 152.3 MB in the end (delta: -49.2 MB). Peak memory consumption was 96.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,436 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.75 ms. Allocated memory is still 138.4 MB. Free memory was 102.8 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,437 INFO L168 Benchmark]: Boogie Preprocessor took 134.92 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 92.7 MB in the beginning and 180.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,438 INFO L168 Benchmark]: RCFGBuilder took 479.80 ms. Allocated memory is still 202.9 MB. Free memory was 180.0 MB in the beginning and 160.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,439 INFO L168 Benchmark]: TraceAbstraction took 6728.66 ms. Allocated memory was 202.9 MB in the beginning and 284.2 MB in the end (delta: 81.3 MB). Free memory was 159.6 MB in the beginning and 152.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:54,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.75 ms. Allocated memory is still 138.4 MB. Free memory was 102.8 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.92 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 92.7 MB in the beginning and 180.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.80 ms. Allocated memory is still 202.9 MB. Free memory was 180.0 MB in the beginning and 160.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6728.66 ms. Allocated memory was 202.9 MB in the beginning and 284.2 MB in the end (delta: 81.3 MB). Free memory was 159.6 MB in the beginning and 152.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * 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 Derived loop invariant: ((((a == b || p2 == b) || a == p1) || p2 == a) || 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: 6.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 19 SDslu, 53 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s 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, 194 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 214 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 28 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 2 QuantifiedInterpolants, 8736 SizeOfPredicates, 34 NumberOfNonLiveVariables, 429 ConjunctsInSsa, 105 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...