/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-b7b32d2 [2021-02-21 16:26:39,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:26:39,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:26:39,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:26:39,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:26:39,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:26:39,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:26:39,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:26:39,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:26:39,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:26:39,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:26:39,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:26:39,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:26:39,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:26:39,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:26:39,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:26:39,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:26:39,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:26:40,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:26:40,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:26:40,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:26:40,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:26:40,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:26:40,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:26:40,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:26:40,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:26:40,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:26:40,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:26:40,053 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 [2021-02-21 16:26:40,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:26:40,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:26:40,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:26:40,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:26:40,115 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:26:40,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:26:40,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:26:40,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:26:40,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:26:40,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:26:40,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:26:40,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:26:40,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:26:40,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:26:40,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:26:40,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:26:40,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:26:40,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:26:40,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:26:40,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:26:40,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:26:40,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:26:40,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:26:40,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:26:40,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:26:40,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:26:40,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:26:40,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:26:40,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:26:40,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:26:40,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:26:40,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:26:40,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:26:40,527 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:26:40,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2021-02-21 16:26:40,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3122f90f7/010e4c1e57114a4b9194f9ea17262977/FLAGcc54bc827 [2021-02-21 16:26:41,221 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:26:41,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2021-02-21 16:26:41,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3122f90f7/010e4c1e57114a4b9194f9ea17262977/FLAGcc54bc827 [2021-02-21 16:26:41,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3122f90f7/010e4c1e57114a4b9194f9ea17262977 [2021-02-21 16:26:41,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:26:41,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:26:41,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:26:41,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:26:41,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:26:41,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48dde7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41, skipping insertion in model container [2021-02-21 16:26:41,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:26:41,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:26:41,898 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] [2021-02-21 16:26:41,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:26:41,928 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:26:41,942 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] [2021-02-21 16:26:41,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:26:41,961 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:26:41,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41 WrapperNode [2021-02-21 16:26:41,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:26:41,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:26:41,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:26:41,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:26:41,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:41,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (1/1) ... [2021-02-21 16:26:42,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:26:42,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:26:42,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:26:42,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:26:42,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (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 [2021-02-21 16:26:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:26:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:26:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:26:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 16:26:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:26:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:26:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:26:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:26:42,093 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:26:42,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:26:42,093 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 16:26:42,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-21 16:26:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:26:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:26:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:26:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:26:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:26:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:26:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:26:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:26:42,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:26:42,407 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 16:26:42,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:26:42 BoogieIcfgContainer [2021-02-21 16:26:42,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:26:42,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:26:42,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:26:42,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:26:42,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:26:41" (1/3) ... [2021-02-21 16:26:42,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d7c208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:26:42, skipping insertion in model container [2021-02-21 16:26:42,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:26:41" (2/3) ... [2021-02-21 16:26:42,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d7c208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:26:42, skipping insertion in model container [2021-02-21 16:26:42,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:26:42" (3/3) ... [2021-02-21 16:26:42,434 INFO L111 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2021-02-21 16:26:42,449 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:26:42,461 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:26:42,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:26:42,562 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:26:42,562 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:26:42,562 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:26:42,562 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:26:42,563 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:26:42,563 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:26:42,563 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:26:42,563 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:26:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-02-21 16:26:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-21 16:26:42,626 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:26:42,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:26:42,627 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:26:42,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:26:42,641 INFO L82 PathProgramCache]: Analyzing trace with hash -36402350, now seen corresponding path program 1 times [2021-02-21 16:26:42,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:26:42,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477746107] [2021-02-21 16:26:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:26:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:26:42,821 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:26:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:26:42,852 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:26:42,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:26:42,897 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:26:42,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:26:42,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:26:42 BoogieIcfgContainer [2021-02-21 16:26:42,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:26:42,947 INFO L168 Benchmark]: Toolchain (without parser) took 1319.75 ms. Allocated memory is still 154.1 MB. Free memory was 130.0 MB in the beginning and 129.1 MB in the end (delta: 961.3 kB). Peak memory consumption was 2.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:42,950 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:26:42,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.67 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 119.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:42,954 INFO L168 Benchmark]: Boogie Preprocessor took 38.03 ms. Allocated memory is still 154.1 MB. Free memory was 119.4 MB in the beginning and 118.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:42,956 INFO L168 Benchmark]: RCFGBuilder took 410.06 ms. Allocated memory is still 154.1 MB. Free memory was 117.9 MB in the beginning and 104.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-21 16:26:42,957 INFO L168 Benchmark]: TraceAbstraction took 527.99 ms. Allocated memory is still 154.1 MB. Free memory was 103.9 MB in the beginning and 129.1 MB in the end (delta: -25.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:26:42,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 319.67 ms. Allocated memory is still 154.1 MB. Free memory was 129.0 MB in the beginning and 119.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.03 ms. Allocated memory is still 154.1 MB. Free memory was 119.4 MB in the beginning and 118.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 410.06 ms. Allocated memory is still 154.1 MB. Free memory was 117.9 MB in the beginning and 104.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 527.99 ms. Allocated memory is still 154.1 MB. Free memory was 103.9 MB in the beginning and 129.1 MB in the end (delta: -25.2 MB). There was no memory consumed. 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...