/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/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:14:23,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:14:23,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:14:23,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:14:23,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:14:23,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:14:23,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:14:23,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:14:23,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:14:23,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:14:23,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:14:23,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:14:23,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:14:23,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:14:23,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:14:23,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:14:23,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:14:23,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:14:23,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:14:23,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:14:23,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:14:23,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:14:23,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:14:23,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:14:23,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:14:23,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:14:23,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:14:23,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:14:23,215 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 17:14:23,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:14:23,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:14:23,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:14:23,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:14:23,234 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:14:23,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:14:23,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:14:23,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:14:23,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:14:23,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:14:23,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:14:23,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:14:23,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:14:23,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:14:23,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:14:23,237 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:14:23,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:14:23,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:14:23,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:14:23,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:14:23,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:14:23,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:14:23,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:14:23,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:14:23,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:14:23,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:14:23,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:23,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:14:23,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:14:23,240 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 17:14:23,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:14:23,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:14:23,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:14:23,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:14:23,575 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:14:23,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-20 17:14:23,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1758b0f9/c53b6fd0987947ca84aace80875d02e3/FLAG3f778e6b2 [2020-07-20 17:14:24,201 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:14:24,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-20 17:14:24,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1758b0f9/c53b6fd0987947ca84aace80875d02e3/FLAG3f778e6b2 [2020-07-20 17:14:24,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1758b0f9/c53b6fd0987947ca84aace80875d02e3 [2020-07-20 17:14:24,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:14:24,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:14:24,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:14:24,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:14:24,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:14:24,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:24,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349a0f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24, skipping insertion in model container [2020-07-20 17:14:24,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:24,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:14:24,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:14:24,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:14:24,806 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:14:24,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:14:24,851 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:14:24,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24 WrapperNode [2020-07-20 17:14:24,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:14:24,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:14:24,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:14:24,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:14:24,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:24,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:24,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:24,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:25,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:25,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:25,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (1/1) ... [2020-07-20 17:14:25,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:14:25,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:14:25,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:14:25,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:14:25,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (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 17:14:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:14:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:14:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-20 17:14:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-20 17:14:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-20 17:14:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-20 17:14:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-20 17:14:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-20 17:14:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-20 17:14:25,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:14:25,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-20 17:14:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:14:25,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:14:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-20 17:14:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-20 17:14:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-20 17:14:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 17:14:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-20 17:14:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-20 17:14:25,136 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-20 17:14:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-20 17:14:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-20 17:14:25,137 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-20 17:14:25,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 17:14:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 17:14:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 17:14:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:14:25,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:14:25,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:14:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 17:14:25,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 17:14:25,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:14:25,589 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 17:14:25,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:14:25 BoogieIcfgContainer [2020-07-20 17:14:25,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:14:25,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:14:25,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:14:25,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:14:25,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:14:24" (1/3) ... [2020-07-20 17:14:25,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2956f641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:14:25, skipping insertion in model container [2020-07-20 17:14:25,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:14:24" (2/3) ... [2020-07-20 17:14:25,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2956f641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:14:25, skipping insertion in model container [2020-07-20 17:14:25,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:14:25" (3/3) ... [2020-07-20 17:14:25,605 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-07-20 17:14:25,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:14:25,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:14:25,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:14:25,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:14:25,680 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:14:25,680 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:14:25,680 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:14:25,680 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:14:25,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:14:25,681 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:14:25,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:14:25,702 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-07-20 17:14:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 17:14:25,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:25,711 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 17:14:25,711 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:25,719 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-07-20 17:14:25,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:25,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596721249] [2020-07-20 17:14:25,728 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 17:14:25,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:14:25,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:14:25,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 17:14:25,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:14:26,011 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 17:14:26,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:14:26,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596721249] [2020-07-20 17:14:26,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:14:26,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:14:26,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538297486] [2020-07-20 17:14:26,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:14:26,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:14:26,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:14:26,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:14:26,049 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 6 states. [2020-07-20 17:14:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:14:26,226 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2020-07-20 17:14:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:14:26,229 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-20 17:14:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:14:26,247 INFO L225 Difference]: With dead ends: 77 [2020-07-20 17:14:26,247 INFO L226 Difference]: Without dead ends: 58 [2020-07-20 17:14:26,255 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 17:14:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-20 17:14:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-07-20 17:14:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-20 17:14:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-07-20 17:14:26,317 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-07-20 17:14:26,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:14:26,319 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-07-20 17:14:26,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:14:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-07-20 17:14:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 17:14:26,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:26,322 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 17:14:26,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:26,537 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-07-20 17:14:26,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:26,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425814342] [2020-07-20 17:14:26,539 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 17:14:26,626 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:14:26,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:14:26,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 17:14:26,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:14:26,684 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 17:14:26,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:14:26,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425814342] [2020-07-20 17:14:26,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:14:26,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 17:14:26,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105862885] [2020-07-20 17:14:26,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:14:26,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:14:26,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:14:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:14:26,691 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 6 states. [2020-07-20 17:14:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:14:26,812 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2020-07-20 17:14:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:14:26,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-07-20 17:14:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:14:26,816 INFO L225 Difference]: With dead ends: 75 [2020-07-20 17:14:26,816 INFO L226 Difference]: Without dead ends: 66 [2020-07-20 17:14:26,818 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 17:14:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-20 17:14:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-20 17:14:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-20 17:14:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-07-20 17:14:26,857 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-07-20 17:14:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:14:26,857 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-07-20 17:14:26,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:14:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-07-20 17:14:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 17:14:26,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:26,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:14:27,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:27,076 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:27,076 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-07-20 17:14:27,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:27,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543964384] [2020-07-20 17:14:27,078 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 17:14:27,231 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:14:27,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:14:27,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 17:14:27,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:14:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 17:14:27,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:14:27,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543964384] [2020-07-20 17:14:27,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:14:27,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:14:27,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607148474] [2020-07-20 17:14:27,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:14:27,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:14:27,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:14:27,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:14:27,270 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 3 states. [2020-07-20 17:14:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:14:27,291 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-07-20 17:14:27,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:14:27,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 17:14:27,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:14:27,294 INFO L225 Difference]: With dead ends: 78 [2020-07-20 17:14:27,294 INFO L226 Difference]: Without dead ends: 66 [2020-07-20 17:14:27,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 17:14:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-20 17:14:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-20 17:14:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-20 17:14:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-20 17:14:27,308 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-07-20 17:14:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:14:27,309 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-20 17:14:27,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:14:27,310 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-20 17:14:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 17:14:27,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:14:27,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:14:27,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:27,526 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:14:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:14:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-07-20 17:14:27,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:14:27,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838729401] [2020-07-20 17:14:27,528 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 17:14:27,659 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:14:27,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 17:14:27,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:14:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 17:14:27,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:14:27,758 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 17:14:27,758 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 17:14:27,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:14:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:14:28 BoogieIcfgContainer [2020-07-20 17:14:28,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:14:28,043 INFO L168 Benchmark]: Toolchain (without parser) took 3524.42 ms. Allocated memory was 136.8 MB in the beginning and 231.7 MB in the end (delta: 94.9 MB). Free memory was 100.7 MB in the beginning and 140.3 MB in the end (delta: -39.6 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,044 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.76 ms. Allocated memory is still 136.8 MB. Free memory was 100.3 MB in the beginning and 89.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,046 INFO L168 Benchmark]: Boogie Preprocessor took 200.68 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 89.0 MB in the beginning and 178.8 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,047 INFO L168 Benchmark]: RCFGBuilder took 540.79 ms. Allocated memory is still 201.9 MB. Free memory was 178.8 MB in the beginning and 154.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,048 INFO L168 Benchmark]: TraceAbstraction took 2443.71 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 153.7 MB in the beginning and 140.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:14:28,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.76 ms. Allocated memory is still 136.8 MB. Free memory was 100.3 MB in the beginning and 89.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 200.68 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 89.0 MB in the beginning and 178.8 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.79 ms. Allocated memory is still 201.9 MB. Free memory was 178.8 MB in the beginning and 154.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2443.71 ms. Allocated memory was 201.9 MB in the beginning and 231.7 MB in the end (delta: 29.9 MB). Free memory was 153.7 MB in the beginning and 140.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] struct slot *tmp_slot; [L41] int used_tmp_slot = 0; [L42] int freed_tmp_slot = 1; VAL [\old(freed_tmp_slot)=7, \old(tmp_slot)=12, \old(tmp_slot)=11, \old(used_tmp_slot)=10, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L136] CALL ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={20539:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={20539:0}, calloc(1, size)={20539:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, kzalloc(sizeof(*hp_slot_ptr), 1)={20539:0}, tmp_slot={0:0}, used_tmp_slot=0] [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={20539:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={20538:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={20538:0}, calloc(1, size)={20538:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={20539:0}, kzalloc(sizeof(*tmp_slot), 1)={20538:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L87] COND FALSE !(!tmp_slot) [L92] used_tmp_slot = 0 [L93] freed_tmp_slot = 0 [L95] tmp_slot->a = 2 [L96] tmp_slot->b = 3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={20539:0}, tmp_slot={20538:0}, used_tmp_slot=0] [L98] CALL, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={0:0}, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L98] RET, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={20539:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={20538:0}, used_tmp_slot=0] [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={20539:0}, rc=-3, tmp_slot={20538:0}, used_tmp_slot=0] [L127] EXPR hp_slot_ptr->private VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={20539:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={20538:0}, used_tmp_slot=0] [L127] CALL kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, tmp_slot={20538:0}, used_tmp_slot=0] [L50] COND FALSE !(p!=0 && p==tmp_slot) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, p={0:0}, tmp_slot={20538:0}, used_tmp_slot=0] [L127] RET kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={20539:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={20538:0}, used_tmp_slot=0] [L132] return rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result=-3, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={20539:0}, rc=-3, tmp_slot={20538:0}, used_tmp_slot=0] [L136] RET ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, ebda_rsrc_controller()=-3, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L137] COND TRUE !used_tmp_slot VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L138] (freed_tmp_slot) ? (0) : __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L138] CALL __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] [L7] __VERIFIER_error() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={20538:0}, used_tmp_slot=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 193 SDtfs, 88 SDslu, 482 SDs, 0 SdLazy, 51 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 165 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 6419 SizeOfPredicates, 3 NumberOfNonLiveVariables, 537 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...