/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:23:42,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:23:42,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:23:42,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:23:42,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:23:42,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:23:42,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:23:42,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:23:42,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:23:42,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:23:42,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:23:42,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:23:42,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:23:42,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:23:42,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:23:42,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:23:42,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:23:42,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:23:42,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:23:42,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:23:42,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:23:42,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:23:42,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:23:42,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:23:42,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:23:42,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:23:42,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:23:42,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:23:42,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:23:42,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:23:42,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:23:42,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:23:42,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:23:42,760 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:23:42,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:23:42,760 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:23:42,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:23:42,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:23:42,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:23:42,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:23:42,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:23:42,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:23:42,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:23:42,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:23:42,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:23:42,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:23:42,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:23:42,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:23:42,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:23:42,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:23:42,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:23:42,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:23:42,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:23:42,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:23:42,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:23:42,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:23:42,765 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:23:42,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:23:42,766 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:23:42,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:23:43,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:23:43,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:23:43,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:23:43,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:23:43,185 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:23:43,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-01-26 17:23:43,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fed01589/11f33b1bdbb6436f98df571334d102c7/FLAGed445087b [2021-01-26 17:23:44,122 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:23:44,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-01-26 17:23:44,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fed01589/11f33b1bdbb6436f98df571334d102c7/FLAGed445087b [2021-01-26 17:23:44,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fed01589/11f33b1bdbb6436f98df571334d102c7 [2021-01-26 17:23:44,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:23:44,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:23:44,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:23:44,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:23:44,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:23:44,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:23:44" (1/1) ... [2021-01-26 17:23:44,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:44, skipping insertion in model container [2021-01-26 17:23:44,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:23:44" (1/1) ... [2021-01-26 17:23:44,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:23:44,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:23:44,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:23:44,903 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:23:44,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:23:45,039 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:23:45,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45 WrapperNode [2021-01-26 17:23:45,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:23:45,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:23:45,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:23:45,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:23:45,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:23:45,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:23:45,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:23:45,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:23:45,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... [2021-01-26 17:23:45,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:23:45,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:23:45,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:23:45,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:23:45,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:23:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:23:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:23:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:23:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:23:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:23:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:23:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:23:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:23:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:23:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:23:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:23:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:23:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:23:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:23:45,278 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:23:45,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:23:45,868 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:23:45,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:23:45 BoogieIcfgContainer [2021-01-26 17:23:45,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:23:45,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:23:45,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:23:45,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:23:45,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:23:44" (1/3) ... [2021-01-26 17:23:45,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f17f1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:23:45, skipping insertion in model container [2021-01-26 17:23:45,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:45" (2/3) ... [2021-01-26 17:23:45,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f17f1d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:23:45, skipping insertion in model container [2021-01-26 17:23:45,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:23:45" (3/3) ... [2021-01-26 17:23:45,886 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2021-01-26 17:23:45,905 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:23:45,906 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:23:45,910 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:23:45,911 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:23:45,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,965 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,965 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,966 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,966 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,970 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,971 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,979 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,979 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,980 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,992 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:45,993 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,001 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,002 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,005 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,005 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:23:46,008 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:23:46,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:23:46,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:23:46,050 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:23:46,050 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:23:46,050 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:23:46,050 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:23:46,050 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:23:46,050 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:23:46,051 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:23:46,064 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:23:46,921 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:23:47,032 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:47,033 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:47,033 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:47,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:47,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-26 17:23:47,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:47,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886634599] [2021-01-26 17:23:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:47,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886634599] [2021-01-26 17:23:47,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:47,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:23:47,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065046114] [2021-01-26 17:23:47,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:23:47,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:47,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:23:47,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:23:47,786 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:48,191 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2021-01-26 17:23:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:23:48,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 17:23:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:48,291 INFO L225 Difference]: With dead ends: 12200 [2021-01-26 17:23:48,292 INFO L226 Difference]: Without dead ends: 4605 [2021-01-26 17:23:48,295 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:48,296 INFO L78 Accepts]: Start accepts. Automaton has 4605 states. Word has length 42 [2021-01-26 17:23:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:48,298 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states. [2021-01-26 17:23:48,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states. [2021-01-26 17:23:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-26 17:23:48,326 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:48,327 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:48,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:23:48,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:48,337 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2021-01-26 17:23:48,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:48,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795529910] [2021-01-26 17:23:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:48,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795529910] [2021-01-26 17:23:48,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:48,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:23:48,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791049389] [2021-01-26 17:23:48,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:23:48,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:48,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:23:48,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:23:48,673 INFO L87 Difference]: Start difference. First operand 4605 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:48,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:48,998 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2021-01-26 17:23:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:23:48,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-26 17:23:48,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:49,028 INFO L225 Difference]: With dead ends: 5725 [2021-01-26 17:23:49,029 INFO L226 Difference]: Without dead ends: 3030 [2021-01-26 17:23:49,030 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:23:49,030 INFO L78 Accepts]: Start accepts. Automaton has 3030 states. Word has length 44 [2021-01-26 17:23:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:49,030 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states. [2021-01-26 17:23:49,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states. [2021-01-26 17:23:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:23:49,041 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:49,042 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:49,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:23:49,042 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:49,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2021-01-26 17:23:49,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:49,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828386532] [2021-01-26 17:23:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:49,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828386532] [2021-01-26 17:23:49,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:49,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:23:49,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793246312] [2021-01-26 17:23:49,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:23:49,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:49,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:23:49,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:23:49,178 INFO L87 Difference]: Start difference. First operand 3030 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:49,350 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2021-01-26 17:23:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:23:49,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-26 17:23:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:49,375 INFO L225 Difference]: With dead ends: 3366 [2021-01-26 17:23:49,375 INFO L226 Difference]: Without dead ends: 2806 [2021-01-26 17:23:49,375 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:49,376 INFO L78 Accepts]: Start accepts. Automaton has 2806 states. Word has length 47 [2021-01-26 17:23:49,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:49,376 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states. [2021-01-26 17:23:49,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:49,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states. [2021-01-26 17:23:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:23:49,386 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:49,386 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:49,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:23:49,387 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:49,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:49,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-26 17:23:49,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:49,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113146893] [2021-01-26 17:23:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:49,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113146893] [2021-01-26 17:23:49,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:49,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:23:49,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602875174] [2021-01-26 17:23:49,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:23:49,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:49,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:23:49,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:23:49,545 INFO L87 Difference]: Start difference. First operand 2806 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:49,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:49,694 INFO L93 Difference]: Finished difference Result 2998 states and 9642 transitions. [2021-01-26 17:23:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:23:49,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-26 17:23:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:49,715 INFO L225 Difference]: With dead ends: 2998 [2021-01-26 17:23:49,716 INFO L226 Difference]: Without dead ends: 2550 [2021-01-26 17:23:49,716 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:49,716 INFO L78 Accepts]: Start accepts. Automaton has 2550 states. Word has length 48 [2021-01-26 17:23:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:49,717 INFO L481 AbstractCegarLoop]: Abstraction has 2550 states. [2021-01-26 17:23:49,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states. [2021-01-26 17:23:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:23:49,725 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:49,726 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:49,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:23:49,726 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:49,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1695398517, now seen corresponding path program 1 times [2021-01-26 17:23:49,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:49,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379352334] [2021-01-26 17:23:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:49,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379352334] [2021-01-26 17:23:49,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:49,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:23:49,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003608326] [2021-01-26 17:23:49,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:23:49,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:49,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:23:49,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:23:49,999 INFO L87 Difference]: Start difference. First operand 2550 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:50,137 INFO L93 Difference]: Finished difference Result 3930 states and 12677 transitions. [2021-01-26 17:23:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:23:50,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-26 17:23:50,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:50,168 INFO L225 Difference]: With dead ends: 3930 [2021-01-26 17:23:50,168 INFO L226 Difference]: Without dead ends: 2260 [2021-01-26 17:23:50,169 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:50,169 INFO L78 Accepts]: Start accepts. Automaton has 2260 states. Word has length 50 [2021-01-26 17:23:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:50,169 INFO L481 AbstractCegarLoop]: Abstraction has 2260 states. [2021-01-26 17:23:50,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states. [2021-01-26 17:23:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:23:50,176 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:50,177 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:50,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:23:50,177 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:50,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:50,178 INFO L82 PathProgramCache]: Analyzing trace with hash 366921643, now seen corresponding path program 2 times [2021-01-26 17:23:50,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:50,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955260440] [2021-01-26 17:23:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:50,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955260440] [2021-01-26 17:23:50,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:50,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:23:50,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024351301] [2021-01-26 17:23:50,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:23:50,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:50,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:23:50,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:23:50,285 INFO L87 Difference]: Start difference. First operand 2260 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:50,488 INFO L93 Difference]: Finished difference Result 3140 states and 10117 transitions. [2021-01-26 17:23:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-26 17:23:50,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-26 17:23:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:50,498 INFO L225 Difference]: With dead ends: 3140 [2021-01-26 17:23:50,498 INFO L226 Difference]: Without dead ends: 1760 [2021-01-26 17:23:50,498 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:50,499 INFO L78 Accepts]: Start accepts. Automaton has 1760 states. Word has length 50 [2021-01-26 17:23:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:50,499 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states. [2021-01-26 17:23:50,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states. [2021-01-26 17:23:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:23:50,505 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:50,505 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:50,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:23:50,506 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:50,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:50,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 3 times [2021-01-26 17:23:50,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:50,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115802491] [2021-01-26 17:23:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:50,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115802491] [2021-01-26 17:23:50,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:50,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:23:50,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017778835] [2021-01-26 17:23:50,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:23:50,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:50,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:23:50,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:23:50,696 INFO L87 Difference]: Start difference. First operand 1760 states. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:50,907 INFO L93 Difference]: Finished difference Result 2226 states and 6963 transitions. [2021-01-26 17:23:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:23:50,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-26 17:23:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:50,915 INFO L225 Difference]: With dead ends: 2226 [2021-01-26 17:23:50,915 INFO L226 Difference]: Without dead ends: 1634 [2021-01-26 17:23:50,916 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:50,916 INFO L78 Accepts]: Start accepts. Automaton has 1634 states. Word has length 50 [2021-01-26 17:23:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:50,917 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states. [2021-01-26 17:23:50,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states. [2021-01-26 17:23:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:23:50,923 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:50,923 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:50,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:23:50,923 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:50,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:50,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1388621878, now seen corresponding path program 1 times [2021-01-26 17:23:50,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:50,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186061365] [2021-01-26 17:23:50,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:51,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186061365] [2021-01-26 17:23:51,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:51,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:23:51,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611947450] [2021-01-26 17:23:51,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:23:51,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:51,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:23:51,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:23:51,119 INFO L87 Difference]: Start difference. First operand 1634 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:51,326 INFO L93 Difference]: Finished difference Result 1793 states and 5496 transitions. [2021-01-26 17:23:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:23:51,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-26 17:23:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:51,332 INFO L225 Difference]: With dead ends: 1793 [2021-01-26 17:23:51,332 INFO L226 Difference]: Without dead ends: 1289 [2021-01-26 17:23:51,333 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:23:51,333 INFO L78 Accepts]: Start accepts. Automaton has 1289 states. Word has length 51 [2021-01-26 17:23:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:51,334 INFO L481 AbstractCegarLoop]: Abstraction has 1289 states. [2021-01-26 17:23:51,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:51,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states. [2021-01-26 17:23:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:23:51,339 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:51,339 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:51,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:23:51,339 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:51,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:51,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1603073441, now seen corresponding path program 1 times [2021-01-26 17:23:51,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:51,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678835052] [2021-01-26 17:23:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:51,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678835052] [2021-01-26 17:23:51,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:51,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:23:51,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051446954] [2021-01-26 17:23:51,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:23:51,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:51,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:23:51,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:23:51,565 INFO L87 Difference]: Start difference. First operand 1289 states. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:51,805 INFO L93 Difference]: Finished difference Result 1055 states and 3066 transitions. [2021-01-26 17:23:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:23:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-26 17:23:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:51,808 INFO L225 Difference]: With dead ends: 1055 [2021-01-26 17:23:51,808 INFO L226 Difference]: Without dead ends: 731 [2021-01-26 17:23:51,809 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:23:51,809 INFO L78 Accepts]: Start accepts. Automaton has 731 states. Word has length 52 [2021-01-26 17:23:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:51,809 INFO L481 AbstractCegarLoop]: Abstraction has 731 states. [2021-01-26 17:23:51,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:51,809 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states. [2021-01-26 17:23:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:23:51,812 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:23:51,812 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:23:51,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-26 17:23:51,812 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:23:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:23:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash -986251264, now seen corresponding path program 1 times [2021-01-26 17:23:51,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:23:51,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287983938] [2021-01-26 17:23:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:23:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:23:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:23:51,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287983938] [2021-01-26 17:23:51,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:23:51,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:23:51,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699867538] [2021-01-26 17:23:51,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:23:51,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:23:51,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:23:51,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:23:51,944 INFO L87 Difference]: Start difference. First operand 731 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:52,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:23:52,029 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2021-01-26 17:23:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:23:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:23:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:23:52,032 INFO L225 Difference]: With dead ends: 623 [2021-01-26 17:23:52,032 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:23:52,032 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:23:52,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-26 17:23:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:23:52,033 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:23:52,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:23:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:23:52,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:23:52,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-26 17:23:52,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:23:52 BasicIcfg [2021-01-26 17:23:52,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:23:52,044 INFO L168 Benchmark]: Toolchain (without parser) took 7706.83 ms. Allocated memory was 302.0 MB in the beginning and 681.6 MB in the end (delta: 379.6 MB). Free memory was 277.5 MB in the beginning and 503.4 MB in the end (delta: -225.9 MB). Peak memory consumption was 158.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:23:52,046 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:23:52,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.37 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 245.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-01-26 17:23:52,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.80 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 284.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2021-01-26 17:23:52,052 INFO L168 Benchmark]: Boogie Preprocessor took 30.21 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 282.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:23:52,053 INFO L168 Benchmark]: RCFGBuilder took 690.98 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 260.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:23:52,057 INFO L168 Benchmark]: TraceAbstraction took 6165.16 ms. Allocated memory was 302.0 MB in the beginning and 681.6 MB in the end (delta: 379.6 MB). Free memory was 259.3 MB in the beginning and 503.4 MB in the end (delta: -244.0 MB). Peak memory consumption was 138.7 MB. Max. memory is 16.0 GB. [2021-01-26 17:23:52,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 688.37 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 245.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 108.80 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 284.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.21 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 282.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 690.98 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 260.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6165.16 ms. Allocated memory was 302.0 MB in the beginning and 681.6 MB in the end (delta: 379.6 MB). Free memory was 259.3 MB in the beginning and 503.4 MB in the end (delta: -244.0 MB). Peak memory consumption was 138.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 941 SDtfs, 1151 SDslu, 3103 SDs, 0 SdLazy, 374 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 60478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...