/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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 0.2.0-b8ad66e [2020-10-23 18:25:55,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:25:55,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:25:55,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:25:55,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:25:55,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:25:55,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:25:55,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:25:55,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:25:55,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:25:55,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:25:55,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:25:55,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:25:55,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:25:55,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:25:55,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:25:55,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:25:55,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:25:55,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:25:55,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:25:55,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:25:55,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:25:55,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:25:55,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:25:55,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:25:55,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:25:55,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:25:55,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:25:55,853 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 [2020-10-23 18:25:55,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:25:55,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:25:55,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:25:55,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:25:55,881 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:25:55,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:25:55,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:25:55,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:25:55,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:25:55,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:25:55,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:25:55,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:25:55,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:25:55,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:25:55,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:25:55,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:25:55,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:25:55,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:25:55,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:25:55,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:25:55,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:25:55,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:25:55,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:25:55,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:25:55,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:25:55,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:25:55,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:25:55,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:25:55,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:25:55,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:25:56,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:25:56,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:25:56,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:25:56,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:25:56,371 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:25:56,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-23 18:25:56,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becb7b220/9c132f8d1f614f4490ebc4de5e0cafe2/FLAG2c3a2ab2e [2020-10-23 18:25:57,053 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:25:57,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-23 18:25:57,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becb7b220/9c132f8d1f614f4490ebc4de5e0cafe2/FLAG2c3a2ab2e [2020-10-23 18:25:57,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becb7b220/9c132f8d1f614f4490ebc4de5e0cafe2 [2020-10-23 18:25:57,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:25:57,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:25:57,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:57,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:25:57,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:25:57,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7653d3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57, skipping insertion in model container [2020-10-23 18:25:57,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:25:57,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:25:57,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:57,675 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:25:57,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:57,721 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:25:57,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57 WrapperNode [2020-10-23 18:25:57,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:57,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:25:57,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:25:57,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:25:57,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (1/1) ... [2020-10-23 18:25:57,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:25:57,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:25:57,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:25:57,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:25:57,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (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 [2020-10-23 18:25:57,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-23 18:25:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-10-23 18:25:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-10-23 18:25:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-10-23 18:25:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-10-23 18:25:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:25:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-23 18:25:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:25:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-10-23 18:25:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:25:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:25:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:25:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:25:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:25:58,465 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:25:58,465 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:25:58,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:58 BoogieIcfgContainer [2020-10-23 18:25:58,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:25:58,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:25:58,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:25:58,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:25:58,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:25:57" (1/3) ... [2020-10-23 18:25:58,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ada481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:58, skipping insertion in model container [2020-10-23 18:25:58,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:57" (2/3) ... [2020-10-23 18:25:58,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ada481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:58, skipping insertion in model container [2020-10-23 18:25:58,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:58" (3/3) ... [2020-10-23 18:25:58,476 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-10-23 18:25:58,488 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:25:58,494 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:25:58,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:25:58,536 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:25:58,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:25:58,536 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:25:58,536 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:25:58,537 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:25:58,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:25:58,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:25:58,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:25:58,556 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-23 18:25:58,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 18:25:58,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:58,563 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, 1] [2020-10-23 18:25:58,564 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:58,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:58,571 INFO L82 PathProgramCache]: Analyzing trace with hash -918362875, now seen corresponding path program 1 times [2020-10-23 18:25:58,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:58,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019730173] [2020-10-23 18:25:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:58,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:25:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:25:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:25:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:25:59,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019730173] [2020-10-23 18:25:59,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:25:59,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:25:59,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102468958] [2020-10-23 18:25:59,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:25:59,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:25:59,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:25:59,189 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 10 states. [2020-10-23 18:25:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:59,687 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2020-10-23 18:25:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:25:59,689 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-23 18:25:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:59,700 INFO L225 Difference]: With dead ends: 86 [2020-10-23 18:25:59,700 INFO L226 Difference]: Without dead ends: 63 [2020-10-23 18:25:59,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:25:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-23 18:25:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-10-23 18:25:59,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-23 18:25:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-10-23 18:25:59,759 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 27 [2020-10-23 18:25:59,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:59,761 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-10-23 18:25:59,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:25:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-10-23 18:25:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-23 18:25:59,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:59,764 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] [2020-10-23 18:25:59,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:25:59,764 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1646489282, now seen corresponding path program 1 times [2020-10-23 18:25:59,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:59,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720051918] [2020-10-23 18:25:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:25:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:25:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:26:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:26:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:26:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:26:00,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720051918] [2020-10-23 18:26:00,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:26:00,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 18:26:00,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733422137] [2020-10-23 18:26:00,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:26:00,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:26:00,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:26:00,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:26:00,189 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 10 states. [2020-10-23 18:26:00,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:26:00,749 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2020-10-23 18:26:00,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 18:26:00,750 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-10-23 18:26:00,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:26:00,752 INFO L225 Difference]: With dead ends: 81 [2020-10-23 18:26:00,752 INFO L226 Difference]: Without dead ends: 71 [2020-10-23 18:26:00,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:26:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-23 18:26:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-10-23 18:26:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-23 18:26:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-10-23 18:26:00,770 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 38 [2020-10-23 18:26:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:26:00,770 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-10-23 18:26:00,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:26:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-10-23 18:26:00,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 18:26:00,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:26:00,773 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, 1] [2020-10-23 18:26:00,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:26:00,773 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:26:00,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:26:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1830224090, now seen corresponding path program 1 times [2020-10-23 18:26:00,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:26:00,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936571738] [2020-10-23 18:26:00,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:26:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:26:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:26:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:26:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:26:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 18:26:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 18:26:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:26:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:00,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:26:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:26:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 18:26:01,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936571738] [2020-10-23 18:26:01,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:26:01,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 18:26:01,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559789845] [2020-10-23 18:26:01,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:26:01,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:26:01,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:26:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:26:01,006 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 8 states. [2020-10-23 18:26:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:26:01,527 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2020-10-23 18:26:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:26:01,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-23 18:26:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:26:01,530 INFO L225 Difference]: With dead ends: 82 [2020-10-23 18:26:01,530 INFO L226 Difference]: Without dead ends: 69 [2020-10-23 18:26:01,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:26:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-23 18:26:01,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-10-23 18:26:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-23 18:26:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2020-10-23 18:26:01,568 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 52 [2020-10-23 18:26:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:26:01,571 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2020-10-23 18:26:01,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:26:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2020-10-23 18:26:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-23 18:26:01,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:26:01,576 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, 1] [2020-10-23 18:26:01,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:26:01,576 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:26:01,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:26:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1877937192, now seen corresponding path program 1 times [2020-10-23 18:26:01,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:26:01,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806807533] [2020-10-23 18:26:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:26:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:26:01,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:26:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:26:01,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:26:01,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:26:01,700 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:26:01,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:26:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:26:01 BoogieIcfgContainer [2020-10-23 18:26:01,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:26:01,792 INFO L168 Benchmark]: Toolchain (without parser) took 4396.65 ms. Allocated memory was 154.1 MB in the beginning and 201.3 MB in the end (delta: 47.2 MB). Free memory was 129.9 MB in the beginning and 168.6 MB in the end (delta: -38.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:26:01,793 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 154.1 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:26:01,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.03 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 118.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:26:01,795 INFO L168 Benchmark]: Boogie Preprocessor took 63.67 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:26:01,795 INFO L168 Benchmark]: RCFGBuilder took 679.77 ms. Allocated memory is still 154.1 MB. Free memory was 116.6 MB in the beginning and 135.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:26:01,798 INFO L168 Benchmark]: TraceAbstraction took 3320.63 ms. Allocated memory was 154.1 MB in the beginning and 201.3 MB in the end (delta: 47.2 MB). Free memory was 135.3 MB in the beginning and 168.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2020-10-23 18:26:01,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 154.1 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 321.03 ms. Allocated memory is still 154.1 MB. Free memory was 129.2 MB in the beginning and 118.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.67 ms. Allocated memory is still 154.1 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 679.77 ms. Allocated memory is still 154.1 MB. Free memory was 116.6 MB in the beginning and 135.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3320.63 ms. Allocated memory was 154.1 MB in the beginning and 201.3 MB in the end (delta: 47.2 MB). Free memory was 135.3 MB in the beginning and 168.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] struct slot *tmp_slot; [L43] int used_tmp_slot = 0; [L44] int freed_tmp_slot = 1; VAL [\old(freed_tmp_slot)=66, \old(tmp_slot)=61, \old(tmp_slot)=50, \old(used_tmp_slot)=64, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L138] 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] [L75] struct hotplug_slot *hp_slot_ptr; [L77] struct bus_info *bus_info_ptr1; [L78] 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] [L80] 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] [L49] 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)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L49] 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={-1:0}, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L80] 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)={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L80] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L81] COND FALSE !(!hp_slot_ptr) [L85] 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={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] 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] [L49] 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)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L49] 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={-2:0}, calloc(1, size)={-2:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L87] 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={-1:0}, kzalloc(sizeof(*tmp_slot), 1)={-2:0}, tmp_slot={0:0}, used_tmp_slot=0] [L87] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L89] COND FALSE !(!tmp_slot) [L94] used_tmp_slot = 0 [L95] freed_tmp_slot = 0 [L97] tmp_slot->a = 2 [L98] 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={-1:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L100] 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={-2:0}, used_tmp_slot=0] [L58] COND TRUE __VERIFIER_nondet_int() [L59] 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={-2:0}, used_tmp_slot=0] [L100] 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={-1:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-2:0}, used_tmp_slot=0] [L100] bus_info_ptr1 = ibmphp_find_same_bus_num() [L101] COND TRUE !bus_info_ptr1 [L102] 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={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L129] 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={-1:0}, hp_slot_ptr->private={0:65}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L129] 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={0:65}, tmp_slot={-2:0}, used_tmp_slot=0] [L52] 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={0:65}, p={0:65}, tmp_slot={-2:0}, used_tmp_slot=0] [L129] 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={-1:0}, hp_slot_ptr->private={0:65}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L134] 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={-1:0}, rc=-3, tmp_slot={-2:0}, used_tmp_slot=0] [L138] 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={-2:0}, used_tmp_slot=0] [L139] 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={-2:0}, used_tmp_slot=0] [L140] (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={-2:0}, used_tmp_slot=0] [L140] 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={-2:0}, used_tmp_slot=0] [L9] CALL reach_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={-2:0}, used_tmp_slot=0] [L3] __assert_fail("0", "rule57_ebda_blast_2.i", 3, "reach_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={-2:0}, used_tmp_slot=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 177 SDtfs, 208 SDslu, 439 SDs, 0 SdLazy, 523 SolverSat, 155 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 17347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...