/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-industry-pattern/array_mul_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:19:51,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:19:51,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:19:51,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:19:51,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:19:51,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:19:51,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:19:51,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:19:51,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:19:51,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:19:51,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:19:51,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:19:51,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:19:51,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:19:51,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:19:51,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:19:51,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:19:51,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:19:51,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:19:51,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:19:51,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:19:51,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:19:51,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:19:51,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:19:51,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:19:51,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:19:51,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:19:51,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:19:51,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:19:51,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:19:51,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:19:51,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:19:51,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:19:51,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:19:51,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:19:51,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:19:51,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:19:51,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:19:51,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:19:51,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:19:51,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:19:51,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 09:19:51,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:19:51,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:19:51,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:19:51,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:19:51,197 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:19:51,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:19:51,197 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:19:51,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:19:51,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:19:51,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:19:51,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:19:51,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:19:51,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:19:51,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:19:51,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:19:51,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:19:51,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:19:51,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:19:51,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:19:51,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:19:51,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:19:51,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:19:51,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:19:51,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:19:51,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:19:51,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:19:51,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:19:51,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:19:51,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:19:51,203 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:19:51,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:19:51,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:19:51,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:19:51,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:19:51,657 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:19:51,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_mul_init.i [2020-10-28 09:19:51,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2da1ad16/0508e5991095473cb61d98e8c2527f77/FLAG1c267c693 [2020-10-28 09:19:52,403 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:19:52,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_mul_init.i [2020-10-28 09:19:52,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2da1ad16/0508e5991095473cb61d98e8c2527f77/FLAG1c267c693 [2020-10-28 09:19:52,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2da1ad16/0508e5991095473cb61d98e8c2527f77 [2020-10-28 09:19:52,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:19:52,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:19:52,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:19:52,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:19:52,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:19:52,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:52,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c99bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52, skipping insertion in model container [2020-10-28 09:19:52,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:52,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:19:52,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:19:52,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:19:52,924 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:19:52,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:19:52,969 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:19:52,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52 WrapperNode [2020-10-28 09:19:52,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:19:52,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:19:52,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:19:52,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:19:52,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:52,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... [2020-10-28 09:19:53,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:19:53,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:19:53,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:19:53,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:19:53,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-28 09:19:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:19:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:19:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:19:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:19:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:19:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:19:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:19:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 09:19:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 09:19:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:19:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:19:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:19:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-28 09:19:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:19:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:19:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:19:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:19:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:19:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:19:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:19:53,681 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:19:53,682 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 09:19:53,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:19:53 BoogieIcfgContainer [2020-10-28 09:19:53,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:19:53,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:19:53,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:19:53,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:19:53,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:19:52" (1/3) ... [2020-10-28 09:19:53,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d16ef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:19:53, skipping insertion in model container [2020-10-28 09:19:53,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:19:52" (2/3) ... [2020-10-28 09:19:53,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d16ef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:19:53, skipping insertion in model container [2020-10-28 09:19:53,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:19:53" (3/3) ... [2020-10-28 09:19:53,695 INFO L111 eAbstractionObserver]: Analyzing ICFG array_mul_init.i [2020-10-28 09:19:53,710 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:19:53,715 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:19:53,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:19:53,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:19:53,779 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:19:53,779 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:19:53,779 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:19:53,780 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:19:53,780 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:19:53,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:19:53,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:19:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-28 09:19:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 09:19:53,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:53,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:19:53,808 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:53,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1981251521, now seen corresponding path program 1 times [2020-10-28 09:19:53,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:53,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708457517] [2020-10-28 09:19:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:53,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:54,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 09:19:54,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:19:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-28 09:19:54,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:54,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 09:19:54,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:54,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:19:54,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:19:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:54,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:19:54,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:54,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 09:19:54,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:54,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:54,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:19:54,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:54,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:19:54,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708457517] [2020-10-28 09:19:54,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:19:54,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:19:54,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276408816] [2020-10-28 09:19:54,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:19:54,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:19:54,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:19:54,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:19:54,658 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-10-28 09:19:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:19:54,780 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2020-10-28 09:19:54,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:19:54,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-28 09:19:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:19:54,790 INFO L225 Difference]: With dead ends: 57 [2020-10-28 09:19:54,791 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 09:19:54,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:19:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 09:19:54,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-28 09:19:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 09:19:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-28 09:19:54,841 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 18 [2020-10-28 09:19:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:19:54,842 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-28 09:19:54,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:19:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-28 09:19:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-28 09:19:54,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:54,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:19:54,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:19:54,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:54,845 INFO L82 PathProgramCache]: Analyzing trace with hash -594099280, now seen corresponding path program 1 times [2020-10-28 09:19:54,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:54,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237683327] [2020-10-28 09:19:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:54,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:55,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 09:19:55,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:19:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-10-28 09:19:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:55,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:19:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 09:19:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 09:19:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:55,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:19:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:55,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:55,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:19:55,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:19:55,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:19:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:19:55,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:19:55,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:19:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:19:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:19:55,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:19:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:19:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:19:55,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237683327] [2020-10-28 09:19:55,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:19:55,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 09:19:55,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897537314] [2020-10-28 09:19:55,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 09:19:55,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:19:55,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 09:19:55,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:19:55,493 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2020-10-28 09:19:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:19:55,648 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2020-10-28 09:19:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 09:19:55,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-28 09:19:55,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:19:55,653 INFO L225 Difference]: With dead ends: 54 [2020-10-28 09:19:55,653 INFO L226 Difference]: Without dead ends: 36 [2020-10-28 09:19:55,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 09:19:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-28 09:19:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-10-28 09:19:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-28 09:19:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-10-28 09:19:55,684 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 18 [2020-10-28 09:19:55,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:19:55,685 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-10-28 09:19:55,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 09:19:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-10-28 09:19:55,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 09:19:55,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:19:55,688 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] [2020-10-28 09:19:55,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:19:55,689 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:19:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:19:55,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1369839687, now seen corresponding path program 1 times [2020-10-28 09:19:55,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:19:55,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783410911] [2020-10-28 09:19:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:19:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:19:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:19:55,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783410911] [2020-10-28 09:19:55,748 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-28 09:19:55,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:19:55,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-28 09:19:55,749 ERROR L205 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-28 09:19:55,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:19:55,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:19:55,781 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-28 09:19:55,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:19:55 BoogieIcfgContainer [2020-10-28 09:19:55,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:19:55,790 INFO L168 Benchmark]: Toolchain (without parser) took 3094.73 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 132.7 MB in the beginning and 146.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:55,791 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:19:55,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.92 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 122.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:55,794 INFO L168 Benchmark]: Boogie Preprocessor took 97.50 ms. Allocated memory is still 152.0 MB. Free memory was 122.3 MB in the beginning and 134.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:55,795 INFO L168 Benchmark]: RCFGBuilder took 614.79 ms. Allocated memory is still 152.0 MB. Free memory was 134.6 MB in the beginning and 118.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:55,798 INFO L168 Benchmark]: TraceAbstraction took 2099.19 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 118.1 MB in the beginning and 146.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:19:55,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.92 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 122.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.50 ms. Allocated memory is still 152.0 MB. Free memory was 122.3 MB in the beginning and 134.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 614.79 ms. Allocated memory is still 152.0 MB. Free memory was 134.6 MB in the beginning and 118.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2099.19 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 118.1 MB in the beginning and 146.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int a[100000]; [L18] int b[100000]; [L19] int k; [L20] int i; [L21] i = 0 [L21] COND TRUE i<100000 [L23] a[i] = i [L24] b[i] = i [L21] i++ [L21] COND FALSE !(i<100000) [L26] i=0 [L26] COND TRUE i< 100000 [L28] COND TRUE __VERIFIER_nondet_short() [L30] k = __VERIFIER_nondet_short() [L31] a[i] = k [L32] b[i] = k * k [L26] i++ [L26] COND FALSE !(i< 100000) [L35] i=0 [L35] COND TRUE i< 100000 [L37] EXPR a[i] [L37] EXPR b[i] [L37] EXPR a[i] == b[i] || b[i] == a[i] * a[i] [L37] CALL __VERIFIER_assert(a[i] == b[i] || b[i] == a[i] * a[i]) [L13] COND TRUE !(cond) [L13] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "array_mul_init.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 20 SDslu, 16 SDs, 0 SdLazy, 69 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...