/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:06:10,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:06:10,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:06:10,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:06:10,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:06:10,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:06:10,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:06:10,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:06:10,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:06:10,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:06:10,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:06:10,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:06:10,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:06:10,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:06:10,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:06:10,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:06:10,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:06:10,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:06:10,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:06:10,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:06:10,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:06:10,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:06:10,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:06:10,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:06:10,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 14:06:10,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 14:06:10,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:06:10,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:06:10,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:06:10,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:06:10,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:06:10,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 14:06:10,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:06:10,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:06:10,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:06:10,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:06:10,982 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:06:10,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:06:10,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:06:10,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:06:10,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:06:10,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:06:10,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:06:10,983 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:06:11,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:06:11,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:06:11,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:06:11,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:06:11,304 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:06:11,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1.c [2020-07-07 14:06:11,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761340344/233d70da5bfa4c389889a60eb1c8c08a/FLAG99883348c [2020-07-07 14:06:11,813 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:06:11,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1.c [2020-07-07 14:06:11,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761340344/233d70da5bfa4c389889a60eb1c8c08a/FLAG99883348c [2020-07-07 14:06:12,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761340344/233d70da5bfa4c389889a60eb1c8c08a [2020-07-07 14:06:12,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:06:12,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:06:12,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:06:12,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:06:12,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:06:12,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751067eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12, skipping insertion in model container [2020-07-07 14:06:12,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:06:12,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:06:12,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:06:12,476 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:06:12,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:06:12,509 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:06:12,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12 WrapperNode [2020-07-07 14:06:12,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:06:12,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:06:12,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:06:12,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:06:12,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (1/1) ... [2020-07-07 14:06:12,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:06:12,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:06:12,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:06:12,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:06:12,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (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 [2020-07-07 14:06:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:06:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:06:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 14:06:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 14:06:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 14:06:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:06:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:06:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:06:12,893 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:06:12,893 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 14:06:12,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:06:12 BoogieIcfgContainer [2020-07-07 14:06:12,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:06:12,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:06:12,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:06:12,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:06:12,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:06:12" (1/3) ... [2020-07-07 14:06:12,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f69e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:06:12, skipping insertion in model container [2020-07-07 14:06:12,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:06:12" (2/3) ... [2020-07-07 14:06:12,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f69e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:06:12, skipping insertion in model container [2020-07-07 14:06:12,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:06:12" (3/3) ... [2020-07-07 14:06:12,906 INFO L109 eAbstractionObserver]: Analyzing ICFG geo1.c [2020-07-07 14:06:12,919 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:06:12,926 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 14:06:12,942 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 14:06:12,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:06:12,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:06:12,997 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:06:12,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:06:12,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:06:12,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:06:12,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:06:12,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:06:13,019 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-07 14:06:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-07 14:06:13,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:06:13,037 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] [2020-07-07 14:06:13,038 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:06:13,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:06:13,050 INFO L82 PathProgramCache]: Analyzing trace with hash -46286132, now seen corresponding path program 1 times [2020-07-07 14:06:13,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:06:13,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590192833] [2020-07-07 14:06:13,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:06:13,158 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:06:13,161 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 14:06:13,161 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 14:06:13,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:06:13,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 02:06:13 BoogieIcfgContainer [2020-07-07 14:06:13,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 14:06:13,184 INFO L168 Benchmark]: Toolchain (without parser) took 938.93 ms. Allocated memory was 141.0 MB in the beginning and 198.2 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 151.1 MB in the end (delta: -51.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,185 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 141.0 MB. Free memory was 99.2 MB in the beginning and 89.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,188 INFO L168 Benchmark]: Boogie Preprocessor took 107.89 ms. Allocated memory was 141.0 MB in the beginning and 198.2 MB in the end (delta: 57.1 MB). Free memory was 89.2 MB in the beginning and 178.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,188 INFO L168 Benchmark]: RCFGBuilder took 279.85 ms. Allocated memory is still 198.2 MB. Free memory was 178.2 MB in the beginning and 162.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,189 INFO L168 Benchmark]: TraceAbstraction took 281.69 ms. Allocated memory is still 198.2 MB. Free memory was 162.1 MB in the beginning and 151.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-07 14:06:13,194 INFO L336 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 141.0 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 141.0 MB. Free memory was 99.2 MB in the beginning and 89.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.89 ms. Allocated memory was 141.0 MB in the beginning and 198.2 MB in the end (delta: 57.1 MB). Free memory was 89.2 MB in the beginning and 178.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.85 ms. Allocated memory is still 198.2 MB. Free memory was 178.2 MB in the beginning and 162.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 281.69 ms. Allocated memory is still 198.2 MB. Free memory was 162.1 MB in the beginning and 151.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int z, k; [L22] int x, y, c; [L23] z = __VERIFIER_nondet_int() [L24] k = __VERIFIER_nondet_int() [L26] x = 1 [L27] y = z [L28] c = 1 [L30] COND TRUE 1 [L31] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) [L14] COND TRUE !(cond) [L16] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=37occurred 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: 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 proved your program to be incorrect! Received shutdown request...