/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_FUNCTIONS --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/rule57_ebda_blast.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:53:10,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:53:10,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:53:10,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:53:10,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:53:10,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:53:10,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:53:10,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:53:10,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:53:10,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:53:10,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:53:10,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:53:10,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:53:10,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:53:10,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:53:10,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:53:10,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:53:10,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:53:10,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:53:10,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:53:10,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:53:10,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:53:10,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:53:10,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:53:10,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 13:53:10,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:53:10,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:53:10,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:53:10,425 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 13:53:10,470 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:53:10,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:53:10,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:53:10,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:53:10,475 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:53:10,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:53:10,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:53:10,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:53:10,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:53:10,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:53:10,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:53:10,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:53:10,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:53:10,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:53:10,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:53:10,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:53:10,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:53:10,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:53:10,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:53:10,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:53:10,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:53:10,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:53:10,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:53:10,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:53:10,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:53:10,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:53:10,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:10,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:53:10,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:53:10,483 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_FUNCTIONS 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 13:53:10,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:53:10,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:53:10,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:53:10,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:53:10,910 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:53:10,912 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i [2020-07-20 13:53:11,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c4b65a7/0599e234ebf4454d9243ede6fda533c9/FLAG76e5a119f [2020-07-20 13:53:11,727 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:53:11,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.i [2020-07-20 13:53:11,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c4b65a7/0599e234ebf4454d9243ede6fda533c9/FLAG76e5a119f [2020-07-20 13:53:12,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c4b65a7/0599e234ebf4454d9243ede6fda533c9 [2020-07-20 13:53:12,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:53:12,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:53:12,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:53:12,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:53:12,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:53:12,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8c7b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12, skipping insertion in model container [2020-07-20 13:53:12,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:53:12,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:53:12,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:53:12,458 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:53:12,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:53:12,620 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:53:12,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12 WrapperNode [2020-07-20 13:53:12,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:53:12,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:53:12,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:53:12,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:53:12,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (1/1) ... [2020-07-20 13:53:12,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:53:12,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:53:12,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:53:12,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:53:12,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (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 13:53:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:53:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:53:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-20 13:53:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-20 13:53:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-20 13:53:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-20 13:53:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-20 13:53:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-20 13:53:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-20 13:53:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:53:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-20 13:53:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:53:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-20 13:53:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-20 13:53:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-20 13:53:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:53:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-20 13:53:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-20 13:53:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:53:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:53:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:53:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:53:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:53:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:53:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:53:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:53:13,331 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:53:13,332 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 13:53:13,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:53:13 BoogieIcfgContainer [2020-07-20 13:53:13,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:53:13,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:53:13,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:53:13,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:53:13,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:53:12" (1/3) ... [2020-07-20 13:53:13,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e803c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:53:13, skipping insertion in model container [2020-07-20 13:53:13,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:53:12" (2/3) ... [2020-07-20 13:53:13,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e803c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:53:13, skipping insertion in model container [2020-07-20 13:53:13,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:53:13" (3/3) ... [2020-07-20 13:53:13,351 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.i [2020-07-20 13:53:13,368 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:53:13,379 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:53:13,397 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:53:13,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:53:13,427 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:53:13,427 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:53:13,427 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:53:13,427 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:53:13,427 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:53:13,427 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:53:13,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:53:13,453 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-07-20 13:53:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 13:53:13,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:53:13,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:53:13,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:53:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:53:13,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2144903796, now seen corresponding path program 1 times [2020-07-20 13:53:13,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:53:13,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857024789] [2020-07-20 13:53:13,483 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 13:53:13,676 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:53:13,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:53:13,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:53:13,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:53:13,831 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 13:53:13,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:53:13,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857024789] [2020-07-20 13:53:13,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:53:13,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:53:13,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056399957] [2020-07-20 13:53:13,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:53:13,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:53:13,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:53:13,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:53:13,884 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 6 states. [2020-07-20 13:53:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:53:14,077 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2020-07-20 13:53:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:53:14,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-20 13:53:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:53:14,094 INFO L225 Difference]: With dead ends: 75 [2020-07-20 13:53:14,095 INFO L226 Difference]: Without dead ends: 56 [2020-07-20 13:53:14,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:53:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-20 13:53:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-07-20 13:53:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-20 13:53:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2020-07-20 13:53:14,180 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 26 [2020-07-20 13:53:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:53:14,182 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2020-07-20 13:53:14,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:53:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2020-07-20 13:53:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 13:53:14,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:53:14,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:53:14,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:14,404 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:53:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:53:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1765959499, now seen corresponding path program 1 times [2020-07-20 13:53:14,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:53:14,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832799971] [2020-07-20 13:53:14,407 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 13:53:14,546 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:53:14,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:53:14,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 13:53:14,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:53:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 13:53:14,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:53:14,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832799971] [2020-07-20 13:53:14,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:53:14,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:53:14,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990087937] [2020-07-20 13:53:14,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:53:14,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:53:14,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:53:14,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:53:14,630 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 6 states. [2020-07-20 13:53:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:53:14,793 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-07-20 13:53:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:53:14,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-07-20 13:53:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:53:14,818 INFO L225 Difference]: With dead ends: 73 [2020-07-20 13:53:14,818 INFO L226 Difference]: Without dead ends: 64 [2020-07-20 13:53:14,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:53:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-20 13:53:14,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-20 13:53:14,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-20 13:53:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-07-20 13:53:14,855 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 37 [2020-07-20 13:53:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:53:14,858 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-07-20 13:53:14,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:53:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-07-20 13:53:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 13:53:14,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:53:14,863 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:53:15,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:15,081 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:53:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:53:15,082 INFO L82 PathProgramCache]: Analyzing trace with hash 856880965, now seen corresponding path program 1 times [2020-07-20 13:53:15,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:53:15,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607969086] [2020-07-20 13:53:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:15,206 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:53:15,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:53:15,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 13:53:15,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:53:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 13:53:15,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:53:15,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607969086] [2020-07-20 13:53:15,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:53:15,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 13:53:15,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361309254] [2020-07-20 13:53:15,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 13:53:15,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:53:15,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 13:53:15,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:53:15,302 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 8 states. [2020-07-20 13:53:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:53:15,394 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-07-20 13:53:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 13:53:15,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-07-20 13:53:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:53:15,399 INFO L225 Difference]: With dead ends: 80 [2020-07-20 13:53:15,399 INFO L226 Difference]: Without dead ends: 64 [2020-07-20 13:53:15,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 13:53:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-20 13:53:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-20 13:53:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-20 13:53:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2020-07-20 13:53:15,414 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 59 [2020-07-20 13:53:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:53:15,415 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2020-07-20 13:53:15,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 13:53:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2020-07-20 13:53:15,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:53:15,418 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:53:15,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:53:15,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:15,633 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:53:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:53:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1472800201, now seen corresponding path program 1 times [2020-07-20 13:53:15,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:53:15,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962687046] [2020-07-20 13:53:15,635 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:15,934 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:53:15,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:53:15,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:53:15,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:53:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 13:53:15,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:53:15,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962687046] [2020-07-20 13:53:15,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:53:15,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:53:15,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065239653] [2020-07-20 13:53:15,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:53:15,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:53:15,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:53:15,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:53:15,979 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 3 states. [2020-07-20 13:53:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:53:16,005 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2020-07-20 13:53:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:53:16,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-20 13:53:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:53:16,008 INFO L225 Difference]: With dead ends: 64 [2020-07-20 13:53:16,008 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 13:53:16,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:53:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 13:53:16,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 13:53:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 13:53:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 13:53:16,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-07-20 13:53:16,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:53:16,012 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 13:53:16,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:53:16,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 13:53:16,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 13:53:16,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:53:16,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 13:53:16,517 INFO L268 CegarLoopResult]: For program point ibmphp_find_same_bus_numEXIT(lines 54 56) no Hoare annotation was computed. [2020-07-20 13:53:16,518 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 13:53:16,519 INFO L271 CegarLoopResult]: At program point ibmphp_find_same_bus_numENTRY(lines 54 56) the Hoare annotation is: true [2020-07-20 13:53:16,520 INFO L268 CegarLoopResult]: For program point ibmphp_find_same_bus_numFINAL(lines 54 56) no Hoare annotation was computed. [2020-07-20 13:53:16,521 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,521 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:53:16,521 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,522 INFO L268 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-07-20 13:53:16,522 INFO L268 CegarLoopResult]: For program point kfreeEXIT(lines 48 51) no Hoare annotation was computed. [2020-07-20 13:53:16,522 INFO L268 CegarLoopResult]: For program point L49-2(lines 48 51) no Hoare annotation was computed. [2020-07-20 13:53:16,522 INFO L271 CegarLoopResult]: At program point kfreeENTRY(lines 48 51) the Hoare annotation is: true [2020-07-20 13:53:16,522 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (not (= 0 |kzalloc_#t~malloc0.base|)) [2020-07-20 13:53:16,523 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-07-20 13:53:16,523 INFO L268 CegarLoopResult]: For program point kzallocEXIT(line 46) no Hoare annotation was computed. [2020-07-20 13:53:16,523 INFO L271 CegarLoopResult]: At program point kzallocENTRY(line 46) the Hoare annotation is: true [2020-07-20 13:53:16,523 INFO L268 CegarLoopResult]: For program point kzallocFINAL(line 46) no Hoare annotation was computed. [2020-07-20 13:53:16,523 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-20 13:53:16,524 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-07-20 13:53:16,524 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-07-20 13:53:16,525 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-07-20 13:53:16,526 INFO L271 CegarLoopResult]: At program point ibmphp_init_devnoENTRY(lines 65 68) the Hoare annotation is: true [2020-07-20 13:53:16,528 INFO L268 CegarLoopResult]: For program point ibmphp_init_devnoFINAL(lines 65 68) no Hoare annotation was computed. [2020-07-20 13:53:16,528 INFO L268 CegarLoopResult]: For program point ibmphp_init_devnoEXIT(lines 65 68) no Hoare annotation was computed. [2020-07-20 13:53:16,534 INFO L268 CegarLoopResult]: For program point L97(lines 97 105) no Hoare annotation was computed. [2020-07-20 13:53:16,535 INFO L268 CegarLoopResult]: For program point ebda_rsrc_controllerEXIT(lines 70 131) no Hoare annotation was computed. [2020-07-20 13:53:16,537 INFO L264 CegarLoopResult]: At program point L126(lines 70 131) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (<= 1 ~used_tmp_slot~0) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,538 INFO L264 CegarLoopResult]: At program point L120(lines 70 131) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (<= 1 ~used_tmp_slot~0) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,538 INFO L264 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (<= 1 ~used_tmp_slot~0) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,539 INFO L268 CegarLoopResult]: For program point L85(lines 85 88) no Hoare annotation was computed. [2020-07-20 13:53:16,539 INFO L268 CegarLoopResult]: For program point L118-1(line 118) no Hoare annotation was computed. [2020-07-20 13:53:16,539 INFO L264 CegarLoopResult]: At program point L83(line 83) the Hoare annotation is: (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base)) [2020-07-20 13:53:16,539 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-07-20 13:53:16,539 INFO L264 CegarLoopResult]: At program point L114(line 114) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (<= 1 ~used_tmp_slot~0) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,539 INFO L268 CegarLoopResult]: For program point L114-1(line 114) no Hoare annotation was computed. [2020-07-20 13:53:16,540 INFO L268 CegarLoopResult]: For program point L77(lines 77 80) no Hoare annotation was computed. [2020-07-20 13:53:16,540 INFO L264 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,540 INFO L268 CegarLoopResult]: For program point L96-1(line 96) no Hoare annotation was computed. [2020-07-20 13:53:16,540 INFO L271 CegarLoopResult]: At program point ebda_rsrc_controllerENTRY(lines 70 131) the Hoare annotation is: true [2020-07-20 13:53:16,540 INFO L264 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: (and (not (= 0 ~tmp_slot~0.base)) (<= 1 ~used_tmp_slot~0) (not (= 0 ebda_rsrc_controller_~hp_slot_ptr~0.base))) [2020-07-20 13:53:16,541 INFO L268 CegarLoopResult]: For program point ebda_rsrc_controllerFINAL(lines 70 131) no Hoare annotation was computed. [2020-07-20 13:53:16,541 INFO L268 CegarLoopResult]: For program point L125-1(line 125) no Hoare annotation was computed. [2020-07-20 13:53:16,541 INFO L268 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-07-20 13:53:16,541 INFO L268 CegarLoopResult]: For program point L115(lines 115 116) no Hoare annotation was computed. [2020-07-20 13:53:16,543 INFO L271 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-07-20 13:53:16,543 INFO L268 CegarLoopResult]: For program point L76-1(line 76) no Hoare annotation was computed. [2020-07-20 13:53:16,550 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,550 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 13:53:16,551 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:53:16,551 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,551 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 133 137) the Hoare annotation is: true [2020-07-20 13:53:16,551 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 133 137) no Hoare annotation was computed. [2020-07-20 13:53:16,551 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 13:53:16,555 INFO L268 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-07-20 13:53:16,555 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-07-20 13:53:16,555 INFO L264 CegarLoopResult]: At program point L136-2(line 136) the Hoare annotation is: false [2020-07-20 13:53:16,556 INFO L268 CegarLoopResult]: For program point L135-1(lines 133 137) no Hoare annotation was computed. [2020-07-20 13:53:16,556 INFO L271 CegarLoopResult]: At program point fillslotinfoENTRY(lines 60 63) the Hoare annotation is: true [2020-07-20 13:53:16,556 INFO L268 CegarLoopResult]: For program point fillslotinfoEXIT(lines 60 63) no Hoare annotation was computed. [2020-07-20 13:53:16,556 INFO L268 CegarLoopResult]: For program point fillslotinfoFINAL(lines 60 63) no Hoare annotation was computed. [2020-07-20 13:53:16,557 INFO L271 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: true [2020-07-20 13:53:16,557 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,557 INFO L268 CegarLoopResult]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2020-07-20 13:53:16,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:53:16 BoogieIcfgContainer [2020-07-20 13:53:16,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:53:16,607 INFO L168 Benchmark]: Toolchain (without parser) took 4528.56 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 101.3 MB in the beginning and 114.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,617 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.99 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 180.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,622 INFO L168 Benchmark]: Boogie Preprocessor took 60.60 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,624 INFO L168 Benchmark]: RCFGBuilder took 655.43 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 155.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,625 INFO L168 Benchmark]: TraceAbstraction took 3257.97 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 155.0 MB in the beginning and 114.3 MB in the end (delta: 40.7 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:53:16,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 545.99 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.9 MB in the beginning and 180.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.60 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 655.43 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 155.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3257.97 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 155.0 MB in the beginning and 114.3 MB in the end (delta: 40.7 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 70]: Loop Invariant Derived loop invariant: (!(0 == tmp_slot) && 1 <= used_tmp_slot) && !(0 == hp_slot_ptr) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (!(0 == tmp_slot) && 1 <= used_tmp_slot) && !(0 == hp_slot_ptr) - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 79 SDslu, 768 SDs, 0 SdLazy, 76 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 31 PreInvPairs, 34 NumberOfFragments, 91 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 80 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 185 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 13777 SizeOfPredicates, 4 NumberOfNonLiveVariables, 828 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 56/56 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...