/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-03 00:43:27,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 00:43:27,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 00:43:27,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 00:43:27,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 00:43:27,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 00:43:27,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 00:43:27,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 00:43:27,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 00:43:27,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 00:43:27,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 00:43:27,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 00:43:27,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 00:43:27,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 00:43:27,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 00:43:27,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 00:43:27,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-03 00:43:27,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 00:43:27,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 00:43:27,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 00:43:27,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-03 00:43:27,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 00:43:27,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 00:43:27,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 00:43:27,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 00:43:27,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 00:43:27,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 00:43:27,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 00:43:27,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 00:43:27,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 00:43:27,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 00:43:27,176 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 00:43:27,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 00:43:27,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 00:43:27,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 00:43:27,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 00:43:27,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 00:43:27,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 00:43:27,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 00:43:27,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 00:43:27,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 00:43:27,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-03 00:43:27,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 00:43:27,178 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-03 00:43:27,179 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-03 00:43:27,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 00:43:27,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 00:43:27,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 00:43:27,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-03 00:43:27,649 INFO L275 PluginConnector]: CDTParser initialized [2021-05-03 00:43:27,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2021-05-03 00:43:27,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8582523/781f6781b1504302a80c79b6eed74122/FLAG5884da688 [2021-05-03 00:43:28,343 INFO L306 CDTParser]: Found 1 translation units. [2021-05-03 00:43:28,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_unwindbound2.c [2021-05-03 00:43:28,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8582523/781f6781b1504302a80c79b6eed74122/FLAG5884da688 [2021-05-03 00:43:28,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8582523/781f6781b1504302a80c79b6eed74122 [2021-05-03 00:43:28,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 00:43:28,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 00:43:28,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-03 00:43:28,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-03 00:43:28,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-03 00:43:28,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:28,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b13ad36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28, skipping insertion in model container [2021-05-03 00:43:28,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:28,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-03 00:43:28,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-03 00:43:28,898 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2021-05-03 00:43:28,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:43:28,931 INFO L203 MainTranslator]: Completed pre-run [2021-05-03 00:43:28,951 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_unwindbound2.c[524,537] [2021-05-03 00:43:28,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-03 00:43:28,995 INFO L208 MainTranslator]: Completed translation [2021-05-03 00:43:28,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28 WrapperNode [2021-05-03 00:43:28,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-03 00:43:28,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 00:43:28,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 00:43:28,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 00:43:29,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (1/1) ... [2021-05-03 00:43:29,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 00:43:29,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 00:43:29,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 00:43:29,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 00:43:29,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (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 [2021-05-03 00:43:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-03 00:43:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 00:43:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-03 00:43:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-03 00:43:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-03 00:43:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-03 00:43:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-03 00:43:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-03 00:43:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-03 00:43:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-03 00:43:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-03 00:43:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-03 00:43:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-03 00:43:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-03 00:43:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-03 00:43:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-03 00:43:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 00:43:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-03 00:43:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-03 00:43:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-03 00:43:29,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 00:43:29,613 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-03 00:43:29,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:43:29 BoogieIcfgContainer [2021-05-03 00:43:29,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 00:43:29,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 00:43:29,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 00:43:29,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 00:43:29,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 12:43:28" (1/3) ... [2021-05-03 00:43:29,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbed0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:43:29, skipping insertion in model container [2021-05-03 00:43:29,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 12:43:28" (2/3) ... [2021-05-03 00:43:29,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbed0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 12:43:29, skipping insertion in model container [2021-05-03 00:43:29,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 12:43:29" (3/3) ... [2021-05-03 00:43:29,641 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_unwindbound2.c [2021-05-03 00:43:29,650 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-03 00:43:29,655 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 00:43:29,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-03 00:43:29,712 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 00:43:29,713 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 00:43:29,713 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-03 00:43:29,713 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 00:43:29,713 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 00:43:29,713 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 00:43:29,714 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 00:43:29,714 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 00:43:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-03 00:43:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 00:43:29,753 INFO L515 BasicCegarLoop]: Found error trace [2021-05-03 00:43:29,754 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 00:43:29,754 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-03 00:43:29,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 00:43:29,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1859024204, now seen corresponding path program 1 times [2021-05-03 00:43:29,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-03 00:43:29,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621884501] [2021-05-03 00:43:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 00:43:29,846 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-03 00:43:29,935 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-05-03 00:43:29,935 INFO L624 BasicCegarLoop]: Counterexample might be feasible [2021-05-03 00:43:29,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 00:43:29,968 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-05-03 00:43:29,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 12:43:29 BoogieIcfgContainer [2021-05-03 00:43:29,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 00:43:29,973 INFO L168 Benchmark]: Toolchain (without parser) took 1252.18 ms. Allocated memory is still 183.5 MB. Free memory was 149.6 MB in the beginning and 141.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2021-05-03 00:43:29,975 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 183.5 MB. Free memory is still 166.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-03 00:43:29,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.15 ms. Allocated memory is still 183.5 MB. Free memory was 149.4 MB in the beginning and 139.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-03 00:43:29,977 INFO L168 Benchmark]: Boogie Preprocessor took 49.14 ms. Allocated memory is still 183.5 MB. Free memory was 139.5 MB in the beginning and 138.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-03 00:43:29,978 INFO L168 Benchmark]: RCFGBuilder took 566.80 ms. Allocated memory is still 183.5 MB. Free memory was 138.0 MB in the beginning and 153.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-05-03 00:43:29,978 INFO L168 Benchmark]: TraceAbstraction took 351.47 ms. Allocated memory is still 183.5 MB. Free memory was 152.8 MB in the beginning and 141.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-05-03 00:43:29,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 183.5 MB. Free memory is still 166.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 276.15 ms. Allocated memory is still 183.5 MB. Free memory was 149.4 MB in the beginning and 139.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.14 ms. Allocated memory is still 183.5 MB. Free memory was 139.5 MB in the beginning and 138.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 566.80 ms. Allocated memory is still 183.5 MB. Free memory was 138.0 MB in the beginning and 153.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 351.47 ms. Allocated memory is still 183.5 MB. Free memory was 152.8 MB in the beginning and 141.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L26] CALL assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) [L9] COND TRUE !cond [L26] RET assume_abort_if_not(((long long) R - 1) * ((long long) R - 1) < A) [L28] CALL assume_abort_if_not(A % 2 == 1) [L9] COND TRUE !cond [L28] RET assume_abort_if_not(A % 2 == 1) [L30] u = ((long long) 2 * R) + 1 [L31] v = 1 [L32] r = ((long long) R * R) - A [L48] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) [L12] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 240.7ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 22.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...