/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/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:44:45,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:44:45,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:44:45,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:44:45,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:44:45,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:44:45,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:44:45,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:44:45,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:44:45,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:44:45,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:44:45,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:44:45,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:44:45,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:44:45,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:44:45,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:44:45,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:44:45,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:44:45,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:44:45,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:44:45,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:44:45,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:44:45,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:44:45,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:44:45,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:44:45,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:44:45,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:44:45,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:44:45,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:44:45,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:44:45,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:44:45,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:44:45,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:44:45,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:44:45,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:44:45,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:44:45,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:44:45,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:44:45,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:44:45,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:44:45,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:44:45,814 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 [2020-11-06 22:44:45,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:44:45,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:44:45,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:44:45,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:44:45,884 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:44:45,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:44:45,885 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:44:45,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:44:45,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:44:45,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:44:45,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:44:45,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:44:45,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:44:45,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:44:45,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:44:45,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:44:45,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:44:45,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:44:45,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:44:45,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:44:45,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:44:45,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:44:45,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:44:45,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:44:45,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:44:45,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:44:45,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:44:45,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:44:45,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:44:45,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:44:46,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:44:46,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:44:46,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:44:46,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:44:46,345 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:44:46,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina5f.c [2020-11-06 22:44:46,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a93fcb4f/2fef32dd6b034429a95a021df4595708/FLAG813968e49 [2020-11-06 22:44:47,181 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:44:47,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c [2020-11-06 22:44:47,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a93fcb4f/2fef32dd6b034429a95a021df4595708/FLAG813968e49 [2020-11-06 22:44:47,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a93fcb4f/2fef32dd6b034429a95a021df4595708 [2020-11-06 22:44:47,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:44:47,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:44:47,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:47,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:44:47,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:44:47,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adc0c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47, skipping insertion in model container [2020-11-06 22:44:47,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:44:47,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:44:47,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:47,840 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:44:47,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:44:47,888 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:44:47,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47 WrapperNode [2020-11-06 22:44:47,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:44:47,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:44:47,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:44:47,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:44:47,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... [2020-11-06 22:44:47,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:44:47,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:44:47,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:44:47,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:44:47,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:44:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:44:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:44:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:44:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-06 22:44:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 22:44:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:44:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 22:44:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:44:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:44:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:44:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:44:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:44:48,592 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:44:48,593 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-06 22:44:48,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:48 BoogieIcfgContainer [2020-11-06 22:44:48,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:44:48,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:44:48,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:44:48,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:44:48,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:47" (1/3) ... [2020-11-06 22:44:48,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665adeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:48, skipping insertion in model container [2020-11-06 22:44:48,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:47" (2/3) ... [2020-11-06 22:44:48,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665adeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:48, skipping insertion in model container [2020-11-06 22:44:48,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:48" (3/3) ... [2020-11-06 22:44:48,604 INFO L111 eAbstractionObserver]: Analyzing ICFG sina5f.c [2020-11-06 22:44:48,621 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:44:48,626 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:44:48,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:44:48,670 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:44:48,670 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:44:48,670 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:44:48,670 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:44:48,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:44:48,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:44:48,671 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:44:48,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:44:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-11-06 22:44:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 22:44:48,698 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:48,699 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, 1, 1] [2020-11-06 22:44:48,699 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:48,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1841305657, now seen corresponding path program 1 times [2020-11-06 22:44:48,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:48,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954132030] [2020-11-06 22:44:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:44:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:44:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:49,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954132030] [2020-11-06 22:44:49,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:44:49,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:44:49,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219883492] [2020-11-06 22:44:49,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:44:49,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:44:49,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:44:49,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 22:44:49,074 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2020-11-06 22:44:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:44:49,311 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2020-11-06 22:44:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:44:49,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-11-06 22:44:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:44:49,324 INFO L225 Difference]: With dead ends: 81 [2020-11-06 22:44:49,324 INFO L226 Difference]: Without dead ends: 39 [2020-11-06 22:44:49,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 22:44:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-06 22:44:49,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-06 22:44:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-06 22:44:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-11-06 22:44:49,380 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2020-11-06 22:44:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:44:49,381 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-11-06 22:44:49,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:44:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-11-06 22:44:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-06 22:44:49,383 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:49,383 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, 1, 1] [2020-11-06 22:44:49,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:44:49,384 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:49,385 INFO L82 PathProgramCache]: Analyzing trace with hash -230914229, now seen corresponding path program 1 times [2020-11-06 22:44:49,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:49,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257004093] [2020-11-06 22:44:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:44:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-06 22:44:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:44:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:44:49,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257004093] [2020-11-06 22:44:49,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:44:49,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:44:49,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109926547] [2020-11-06 22:44:49,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:44:49,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:44:49,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:44:49,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:44:49,584 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 5 states. [2020-11-06 22:44:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:44:50,075 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2020-11-06 22:44:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:44:50,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-06 22:44:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:44:50,084 INFO L225 Difference]: With dead ends: 77 [2020-11-06 22:44:50,084 INFO L226 Difference]: Without dead ends: 53 [2020-11-06 22:44:50,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:44:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-06 22:44:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2020-11-06 22:44:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-06 22:44:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-11-06 22:44:50,108 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 29 [2020-11-06 22:44:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:44:50,108 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-11-06 22:44:50,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:44:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-11-06 22:44:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-06 22:44:50,110 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:44:50,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:44:50,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:44:50,111 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:44:50,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:44:50,112 INFO L82 PathProgramCache]: Analyzing trace with hash 143959605, now seen corresponding path program 1 times [2020-11-06 22:44:50,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:44:50,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605469839] [2020-11-06 22:44:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:44:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:50,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:44:50,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:44:50,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:44:50,340 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:44:50,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:44:50,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:50 BoogieIcfgContainer [2020-11-06 22:44:50,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:44:50,400 INFO L168 Benchmark]: Toolchain (without parser) took 2847.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 126.2 MB in the end (delta: 67.4 kB). Peak memory consumption was 79.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:50,402 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 122.6 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:44:50,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.68 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:50,409 INFO L168 Benchmark]: Boogie Preprocessor took 49.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:50,411 INFO L168 Benchmark]: RCFGBuilder took 653.64 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 127.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:50,413 INFO L168 Benchmark]: TraceAbstraction took 1801.56 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.2 MB in the end (delta: 988.9 kB). Peak memory consumption was 80.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:44:50,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 122.7 MB in the beginning and 122.6 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 326.68 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 115.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.45 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 113.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 653.64 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 127.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1801.56 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.2 MB in the end (delta: 988.9 kB). Peak memory consumption was 80.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=51, N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 VAL [\old(N)=0, a={-1:0}, b={11:0}, i=0, malloc(sizeof(long long)*N)={11:0}, malloc(sizeof(long long)*N)={-1:0}, N=1, sum={13:0}] [L33] COND TRUE i