/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:56:00,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:56:00,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:56:00,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:56:00,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:56:00,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:56:00,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:56:00,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:56:00,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:56:00,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:56:00,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:56:00,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:56:00,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:56:00,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:56:00,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:56:00,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:56:00,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:56:00,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:56:00,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:56:00,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:56:00,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:56:00,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:56:00,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:56:00,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:56:00,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 10:56:00,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:56:00,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:56:00,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:56:00,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:56:00,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:56:00,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:56:00,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:56:00,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:56:00,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:56:00,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:56:00,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:56:00,155 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 [2020-10-16 10:56:00,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:56:00,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:56:00,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:56:00,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:56:00,200 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:56:00,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:56:00,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:56:00,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:56:00,202 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:56:00,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:56:00,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:56:00,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:56:00,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:56:00,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:56:00,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:56:00,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:56:00,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:56:00,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:56:00,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:56:00,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:56:00,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:56:00,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:56:00,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:56:00,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:56:00,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:56:00,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:56:00,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:56:00,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:56:00,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:56:00,543 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:56:00,543 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-16 10:56:00,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f09107d2/4c1e9e3c35a64f388db76ce5b2bfadff/FLAG2328fa337 [2020-10-16 10:56:01,162 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:56:01,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-16 10:56:01,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f09107d2/4c1e9e3c35a64f388db76ce5b2bfadff/FLAG2328fa337 [2020-10-16 10:56:01,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0f09107d2/4c1e9e3c35a64f388db76ce5b2bfadff [2020-10-16 10:56:01,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:56:01,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:56:01,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:56:01,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:56:01,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:56:01,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:56:01" (1/1) ... [2020-10-16 10:56:01,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e7bb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:01, skipping insertion in model container [2020-10-16 10:56:01,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:56:01" (1/1) ... [2020-10-16 10:56:01,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:56:01,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:56:02,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:56:02,077 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:56:02,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:56:02,221 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:56:02,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02 WrapperNode [2020-10-16 10:56:02,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:56:02,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:56:02,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:56:02,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:56:02,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:56:02,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:56:02,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:56:02,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:56:02,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (1/1) ... [2020-10-16 10:56:02,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:56:02,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:56:02,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:56:02,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:56:02,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (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 [2020-10-16 10:56:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 10:56:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 10:56:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:56:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:56:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:56:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:56:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:56:02,365 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:56:02,721 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:56:02,722 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 10:56:02,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:56:02 BoogieIcfgContainer [2020-10-16 10:56:02,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:56:02,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:56:02,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:56:02,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:56:02,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:56:01" (1/3) ... [2020-10-16 10:56:02,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406a3f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:56:02, skipping insertion in model container [2020-10-16 10:56:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:56:02" (2/3) ... [2020-10-16 10:56:02,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406a3f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:56:02, skipping insertion in model container [2020-10-16 10:56:02,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:56:02" (3/3) ... [2020-10-16 10:56:02,733 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-10-16 10:56:02,745 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:56:02,745 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:56:02,753 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 10:56:02,754 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:56:02,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,779 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,779 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,786 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:56:02,800 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 10:56:02,818 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 10:56:02,841 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:56:02,841 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:56:02,841 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:56:02,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:56:02,842 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:56:02,842 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:56:02,842 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:56:02,842 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:56:02,854 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:56:02,857 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-10-16 10:56:02,859 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 82 transitions, 169 flow [2020-10-16 10:56:02,861 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-10-16 10:56:02,905 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-10-16 10:56:02,905 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 10:56:02,913 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-10-16 10:56:02,918 INFO L117 LiptonReduction]: Number of co-enabled transitions 2400 [2020-10-16 10:56:03,739 INFO L132 LiptonReduction]: Checked pairs total: 4233 [2020-10-16 10:56:03,739 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 10:56:03,746 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-10-16 10:56:03,768 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-10-16 10:56:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-10-16 10:56:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 10:56:03,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:03,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:03,781 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:03,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-10-16 10:56:03,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:03,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511670737] [2020-10-16 10:56:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:03,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511670737] [2020-10-16 10:56:03,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:03,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:56:03,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448932753] [2020-10-16 10:56:03,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 10:56:03,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:03,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 10:56:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 10:56:03,978 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-10-16 10:56:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,005 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-10-16 10:56:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 10:56:04,007 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-16 10:56:04,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,020 INFO L225 Difference]: With dead ends: 198 [2020-10-16 10:56:04,021 INFO L226 Difference]: Without dead ends: 198 [2020-10-16 10:56:04,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 10:56:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-16 10:56:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-16 10:56:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-16 10:56:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-10-16 10:56:04,089 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-10-16 10:56:04,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,089 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-10-16 10:56:04,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 10:56:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-10-16 10:56:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 10:56:04,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:56:04,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-10-16 10:56:04,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874627773] [2020-10-16 10:56:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874627773] [2020-10-16 10:56:04,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:56:04,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637481342] [2020-10-16 10:56:04,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,167 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-10-16 10:56:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,247 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-10-16 10:56:04,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 10:56:04,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,259 INFO L225 Difference]: With dead ends: 362 [2020-10-16 10:56:04,259 INFO L226 Difference]: Without dead ends: 362 [2020-10-16 10:56:04,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-10-16 10:56:04,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-10-16 10:56:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-16 10:56:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-10-16 10:56:04,323 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-10-16 10:56:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,324 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-10-16 10:56:04,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-10-16 10:56:04,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 10:56:04,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:56:04,330 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-10-16 10:56:04,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104918411] [2020-10-16 10:56:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104918411] [2020-10-16 10:56:04,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 10:56:04,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111354123] [2020-10-16 10:56:04,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,416 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-10-16 10:56:04,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,436 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-10-16 10:56:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 10:56:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,440 INFO L225 Difference]: With dead ends: 348 [2020-10-16 10:56:04,440 INFO L226 Difference]: Without dead ends: 348 [2020-10-16 10:56:04,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-16 10:56:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-10-16 10:56:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 10:56:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-10-16 10:56:04,457 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-10-16 10:56:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,457 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-10-16 10:56:04,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-10-16 10:56:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 10:56:04,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:56:04,461 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-10-16 10:56:04,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989422331] [2020-10-16 10:56:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989422331] [2020-10-16 10:56:04,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:56:04,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862815412] [2020-10-16 10:56:04,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,508 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-10-16 10:56:04,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,564 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-10-16 10:56:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 10:56:04,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,567 INFO L225 Difference]: With dead ends: 220 [2020-10-16 10:56:04,567 INFO L226 Difference]: Without dead ends: 220 [2020-10-16 10:56:04,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-16 10:56:04,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-16 10:56:04,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-16 10:56:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-10-16 10:56:04,581 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-10-16 10:56:04,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,582 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-10-16 10:56:04,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-10-16 10:56:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 10:56:04,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:56:04,585 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-10-16 10:56:04,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254607564] [2020-10-16 10:56:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254607564] [2020-10-16 10:56:04,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:56:04,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301463496] [2020-10-16 10:56:04,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,642 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-10-16 10:56:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,705 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-10-16 10:56:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 10:56:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,707 INFO L225 Difference]: With dead ends: 240 [2020-10-16 10:56:04,708 INFO L226 Difference]: Without dead ends: 240 [2020-10-16 10:56:04,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-16 10:56:04,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-10-16 10:56:04,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-16 10:56:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-10-16 10:56:04,718 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-10-16 10:56:04,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,719 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-10-16 10:56:04,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-10-16 10:56:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 10:56:04,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 10:56:04,721 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,721 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-10-16 10:56:04,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928333190] [2020-10-16 10:56:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928333190] [2020-10-16 10:56:04,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:56:04,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598176410] [2020-10-16 10:56:04,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,755 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-10-16 10:56:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,791 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-10-16 10:56:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 10:56:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,794 INFO L225 Difference]: With dead ends: 228 [2020-10-16 10:56:04,794 INFO L226 Difference]: Without dead ends: 228 [2020-10-16 10:56:04,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-16 10:56:04,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-10-16 10:56:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-16 10:56:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-10-16 10:56:04,803 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-10-16 10:56:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,803 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-10-16 10:56:04,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-10-16 10:56:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 10:56:04,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:56:04,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 10:56:04,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 10:56:04,805 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:56:04,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:56:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-10-16 10:56:04,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:56:04,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416844809] [2020-10-16 10:56:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:56:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:56:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:56:04,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416844809] [2020-10-16 10:56:04,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:56:04,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:56:04,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583708746] [2020-10-16 10:56:04,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:56:04,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:56:04,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:56:04,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,847 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-10-16 10:56:04,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:56:04,890 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-10-16 10:56:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:56:04,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 10:56:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:56:04,891 INFO L225 Difference]: With dead ends: 194 [2020-10-16 10:56:04,891 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 10:56:04,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:56:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 10:56:04,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 10:56:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 10:56:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 10:56:04,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-16 10:56:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:56:04,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 10:56:04,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:56:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 10:56:04,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 10:56:04,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 10:56:04,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:56:04 BasicIcfg [2020-10-16 10:56:04,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:56:04,901 INFO L168 Benchmark]: Toolchain (without parser) took 3388.11 ms. Allocated memory was 149.4 MB in the beginning and 244.8 MB in the end (delta: 95.4 MB). Free memory was 104.2 MB in the beginning and 175.7 MB in the end (delta: -71.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,902 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.70 ms. Allocated memory was 149.4 MB in the beginning and 206.0 MB in the end (delta: 56.6 MB). Free memory was 104.0 MB in the beginning and 165.8 MB in the end (delta: -61.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.95 ms. Allocated memory is still 206.0 MB. Free memory was 165.8 MB in the beginning and 163.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,904 INFO L168 Benchmark]: Boogie Preprocessor took 29.93 ms. Allocated memory is still 206.0 MB. Free memory was 163.8 MB in the beginning and 161.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,905 INFO L168 Benchmark]: RCFGBuilder took 421.69 ms. Allocated memory is still 206.0 MB. Free memory was 161.9 MB in the beginning and 140.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,906 INFO L168 Benchmark]: TraceAbstraction took 2173.09 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 139.9 MB in the beginning and 175.7 MB in the end (delta: -35.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:56:04,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 149.4 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.70 ms. Allocated memory was 149.4 MB in the beginning and 206.0 MB in the end (delta: 56.6 MB). Free memory was 104.0 MB in the beginning and 165.8 MB in the end (delta: -61.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.95 ms. Allocated memory is still 206.0 MB. Free memory was 165.8 MB in the beginning and 163.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.93 ms. Allocated memory is still 206.0 MB. Free memory was 163.8 MB in the beginning and 161.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.69 ms. Allocated memory is still 206.0 MB. Free memory was 161.9 MB in the beginning and 140.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2173.09 ms. Allocated memory was 206.0 MB in the beginning and 244.8 MB in the end (delta: 38.8 MB). Free memory was 139.9 MB in the beginning and 175.7 MB in the end (delta: -35.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1206 VarBasedMoverChecksPositive, 61 VarBasedMoverChecksNegative, 33 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 247 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 62 PlacesBefore, 35 PlacesAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 43 TotalNumberOfCompositions, 4233 MoverChecksTotal - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 373 SDtfs, 152 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...