/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/loop-acceleration/phases_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:53:13,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:53:13,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:53:13,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:53:13,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:53:13,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:53:13,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:53:13,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:53:13,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:53:13,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:53:13,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:53:13,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:53:13,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:53:13,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:53:13,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:53:13,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:53:13,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:53:13,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:53:13,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:53:13,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:53:13,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:53:13,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:53:13,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:53:13,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:53:13,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:53:13,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:53:13,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:53:13,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:53:13,827 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 [2021-02-23 13:53:13,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:53:13,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:53:13,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:53:13,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:53:13,881 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:53:13,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:53:13,882 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:53:13,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:53:13,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:53:13,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:53:13,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:53:13,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:53:13,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:53:13,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:53:13,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:53:13,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:53:13,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:53:13,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:53:13,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:53:13,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:53:13,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:53:13,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:53:13,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:53:13,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:53:13,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:53:13,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:53:13,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:53:13,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:53:13,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:53:14,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:53:14,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:53:14,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:53:14,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:53:14,386 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:53:14,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2021-02-23 13:53:14,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5345dd685/0deb6d39681d44b8aa38a1f88fb19cbf/FLAGc70aedb3a [2021-02-23 13:53:15,141 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:53:15,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2021-02-23 13:53:15,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5345dd685/0deb6d39681d44b8aa38a1f88fb19cbf/FLAGc70aedb3a [2021-02-23 13:53:15,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5345dd685/0deb6d39681d44b8aa38a1f88fb19cbf [2021-02-23 13:53:15,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:53:15,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:53:15,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:15,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:53:15,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:53:15,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bc3dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15, skipping insertion in model container [2021-02-23 13:53:15,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:53:15,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:53:15,696 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c[459,472] [2021-02-23 13:53:15,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:15,719 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:53:15,735 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c[459,472] [2021-02-23 13:53:15,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:53:15,755 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:53:15,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15 WrapperNode [2021-02-23 13:53:15,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:53:15,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:53:15,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:53:15,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:53:15,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (1/1) ... [2021-02-23 13:53:15,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:53:15,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:53:15,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:53:15,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:53:15,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (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 [2021-02-23 13:53:15,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:53:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:53:15,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:53:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 13:53:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:53:15,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:53:15,922 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:53:15,922 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:53:15,923 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:53:15,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:53:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 13:53:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-23 13:53:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:53:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:53:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:53:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:53:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:53:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:53:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:53:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:53:16,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:53:16,406 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:53:16,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:16 BoogieIcfgContainer [2021-02-23 13:53:16,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:53:16,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:53:16,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:53:16,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:53:16,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:53:15" (1/3) ... [2021-02-23 13:53:16,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2363e4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:16, skipping insertion in model container [2021-02-23 13:53:16,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:53:15" (2/3) ... [2021-02-23 13:53:16,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2363e4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:53:16, skipping insertion in model container [2021-02-23 13:53:16,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:53:16" (3/3) ... [2021-02-23 13:53:16,438 INFO L111 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2021-02-23 13:53:16,445 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:53:16,451 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:53:16,474 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:53:16,504 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:53:16,505 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:53:16,505 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:53:16,505 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:53:16,505 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:53:16,505 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:53:16,505 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:53:16,506 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:53:16,526 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-02-23 13:53:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-23 13:53:16,532 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:53:16,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:53:16,534 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:53:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:53:16,541 INFO L82 PathProgramCache]: Analyzing trace with hash -36402350, now seen corresponding path program 1 times [2021-02-23 13:53:16,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:53:16,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101402681] [2021-02-23 13:53:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:53:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:53:16,751 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:53:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:53:16,780 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:53:16,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:53:16,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:53:16,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:53:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:53:16 BoogieIcfgContainer [2021-02-23 13:53:16,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:53:16,840 INFO L168 Benchmark]: Toolchain (without parser) took 1331.65 ms. Allocated memory is still 155.2 MB. Free memory was 130.4 MB in the beginning and 124.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:16,841 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory is still 128.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:53:16,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.31 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 119.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:16,843 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 155.2 MB. Free memory was 119.2 MB in the beginning and 117.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:16,844 INFO L168 Benchmark]: RCFGBuilder took 613.11 ms. Allocated memory is still 155.2 MB. Free memory was 117.8 MB in the beginning and 137.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:16,845 INFO L168 Benchmark]: TraceAbstraction took 421.60 ms. Allocated memory is still 155.2 MB. Free memory was 137.2 MB in the beginning and 124.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:53:16,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 155.2 MB. Free memory is still 128.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 236.31 ms. Allocated memory is still 155.2 MB. Free memory was 129.2 MB in the beginning and 119.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 155.2 MB. Free memory was 119.2 MB in the beginning and 117.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.11 ms. Allocated memory is still 155.2 MB. Free memory was 117.8 MB in the beginning and 137.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 421.60 ms. Allocated memory is still 155.2 MB. Free memory was 137.2 MB in the beginning and 124.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=1] [L23] COND FALSE !(x < y) VAL [x=1, y=1] [L31] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L12] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...