/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:16:51,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:16:51,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:16:51,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:16:51,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:16:51,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:16:51,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:16:51,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:16:51,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:16:51,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:16:51,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:16:51,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:16:51,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:16:51,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:16:51,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:16:51,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:16:51,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:16:51,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:16:51,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:16:51,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:16:51,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:16:51,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:16:51,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:16:51,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:16:51,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:16:51,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:16:51,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:16:51,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:16:51,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:16:51,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:16:51,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:16:51,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:16:51,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:16:51,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:16:51,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:16:51,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:16:51,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:16:51,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:16:51,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:16:51,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:16:51,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:16:51,759 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-Delay.epf [2020-11-12 06:16:51,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:16:51,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:16:51,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:16:51,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:16:51,792 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:16:51,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:16:51,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:16:51,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:16:51,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:16:51,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:16:51,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:16:51,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:16:51,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:16:51,794 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:16:51,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:16:51,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:16:51,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:16:51,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:16:51,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:16:51,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:16:51,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:16:51,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:16:51,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:16:51,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:16:51,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:16:51,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:16:51,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:16:51,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:16:51,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:16:51,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:16:51,798 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:16:52,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:16:52,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:16:52,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:16:52,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:16:52,228 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:16:52,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-11-12 06:16:52,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f371c66/4c21056e88ed466b94fe3b5c34f40251/FLAG8232739c6 [2020-11-12 06:16:53,009 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:16:53,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.opt.i [2020-11-12 06:16:53,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f371c66/4c21056e88ed466b94fe3b5c34f40251/FLAG8232739c6 [2020-11-12 06:16:53,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f371c66/4c21056e88ed466b94fe3b5c34f40251 [2020-11-12 06:16:53,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:16:53,254 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:16:53,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:16:53,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:16:53,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:16:53,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:53,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a20ebfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53, skipping insertion in model container [2020-11-12 06:16:53,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:53,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:16:53,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:16:53,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:16:53,766 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:16:53,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:16:53,937 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:16:53,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53 WrapperNode [2020-11-12 06:16:53,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:16:53,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:16:53,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:16:53,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:16:53,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:53,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:16:54,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:16:54,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:16:54,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:16:54,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... [2020-11-12 06:16:54,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:16:54,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:16:54,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:16:54,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:16:54,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:16:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:16:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:16:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:16:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:16:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:16:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:16:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:16:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:16:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:16:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:16:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:16:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:16:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:16:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:16:54,117 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:16:54,699 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:16:54,700 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:16:54,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:16:54 BoogieIcfgContainer [2020-11-12 06:16:54,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:16:54,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:16:54,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:16:54,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:16:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:16:53" (1/3) ... [2020-11-12 06:16:54,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8734cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:16:54, skipping insertion in model container [2020-11-12 06:16:54,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:16:53" (2/3) ... [2020-11-12 06:16:54,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8734cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:16:54, skipping insertion in model container [2020-11-12 06:16:54,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:16:54" (3/3) ... [2020-11-12 06:16:54,717 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2020-11-12 06:16:54,734 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:16:54,735 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:16:54,739 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:16:54,740 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:16:54,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,771 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,771 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,772 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,774 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,778 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,778 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:16:54,794 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:16:54,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:16:54,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:16:54,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:16:54,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:16:54,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:16:54,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:16:54,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:16:54,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:16:54,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:16:54,851 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 06:16:55,928 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) [2020-11-12 06:16:56,681 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 749ms [2020-11-12 06:16:56,759 WARN L456 BasicCegarLoop]: Sleep set: input automaton 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) [2020-11-12 06:16:56,785 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9848 states, 9155 states have (on average 1.409175314036046) internal successors, (12901), 9847 states have internal predecessors, (12901), 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) [2020-11-12 06:16:56,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9155 states have (on average 1.409175314036046) internal successors, (12901), 9847 states have internal predecessors, (12901), 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) [2020-11-12 06:16:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:16:56,825 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:56,826 INFO L494 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] [2020-11-12 06:16:56,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:56,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:56,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-12 06:16:56,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:56,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255799157] [2020-11-12 06:16:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:16:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:16:57,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255799157] [2020-11-12 06:16:57,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:16:57,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:16:57,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585346687] [2020-11-12 06:16:57,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:16:57,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:16:57,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:16:57,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:16:57,405 INFO L87 Difference]: Start difference. First operand has 9848 states, 9155 states have (on average 1.409175314036046) internal successors, (12901), 9847 states have internal predecessors, (12901), 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) [2020-11-12 06:16:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:16:57,884 INFO L93 Difference]: Finished difference Result 12200 states and 15071 transitions. [2020-11-12 06:16:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:16:57,886 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 [2020-11-12 06:16:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:16:57,927 INFO L225 Difference]: With dead ends: 12200 [2020-11-12 06:16:57,927 INFO L226 Difference]: Without dead ends: 3880 [2020-11-12 06:16:57,929 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:16:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3880 states. [2020-11-12 06:16:58,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3880 to 3880. [2020-11-12 06:16:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3635 states have (on average 1.49353507565337) internal successors, (5429), 3879 states have internal predecessors, (5429), 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) [2020-11-12 06:16:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5429 transitions. [2020-11-12 06:16:58,145 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5429 transitions. Word has length 42 [2020-11-12 06:16:58,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:16:58,146 INFO L481 AbstractCegarLoop]: Abstraction has 3880 states and 5429 transitions. [2020-11-12 06:16:58,146 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) [2020-11-12 06:16:58,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5429 transitions. [2020-11-12 06:16:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 06:16:58,153 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:58,153 INFO L494 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] [2020-11-12 06:16:58,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:16:58,154 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:58,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2038497689, now seen corresponding path program 1 times [2020-11-12 06:16:58,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:58,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858160458] [2020-11-12 06:16:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:16:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:16:58,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858160458] [2020-11-12 06:16:58,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:16:58,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:16:58,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167194087] [2020-11-12 06:16:58,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:16:58,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:16:58,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:16:58,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:16:58,367 INFO L87 Difference]: Start difference. First operand 3880 states and 5429 transitions. 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) [2020-11-12 06:16:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:16:58,624 INFO L93 Difference]: Finished difference Result 5000 states and 7445 transitions. [2020-11-12 06:16:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:16:58,624 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 [2020-11-12 06:16:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:16:58,637 INFO L225 Difference]: With dead ends: 5000 [2020-11-12 06:16:58,637 INFO L226 Difference]: Without dead ends: 2175 [2020-11-12 06:16:58,638 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:16:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2020-11-12 06:16:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 2175. [2020-11-12 06:16:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 2035 states have (on average 1.5144963144963144) internal successors, (3082), 2174 states have internal predecessors, (3082), 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) [2020-11-12 06:16:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3082 transitions. [2020-11-12 06:16:58,711 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3082 transitions. Word has length 44 [2020-11-12 06:16:58,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:16:58,712 INFO L481 AbstractCegarLoop]: Abstraction has 2175 states and 3082 transitions. [2020-11-12 06:16:58,712 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) [2020-11-12 06:16:58,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3082 transitions. [2020-11-12 06:16:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:16:58,716 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:58,717 INFO L494 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] [2020-11-12 06:16:58,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:16:58,717 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash 243817118, now seen corresponding path program 1 times [2020-11-12 06:16:58,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:58,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765878902] [2020-11-12 06:16:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:16:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:16:58,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765878902] [2020-11-12 06:16:58,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:16:58,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:16:58,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223549289] [2020-11-12 06:16:58,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:16:58,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:16:58,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:16:58,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:16:58,857 INFO L87 Difference]: Start difference. First operand 2175 states and 3082 transitions. 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) [2020-11-12 06:16:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:16:59,019 INFO L93 Difference]: Finished difference Result 2415 states and 3692 transitions. [2020-11-12 06:16:59,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:16:59,020 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 [2020-11-12 06:16:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:16:59,029 INFO L225 Difference]: With dead ends: 2415 [2020-11-12 06:16:59,030 INFO L226 Difference]: Without dead ends: 1574 [2020-11-12 06:16:59,030 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:16:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2020-11-12 06:16:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2020-11-12 06:16:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1474 states have (on average 1.5352781546811398) internal successors, (2263), 1573 states have internal predecessors, (2263), 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) [2020-11-12 06:16:59,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2263 transitions. [2020-11-12 06:16:59,081 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2263 transitions. Word has length 47 [2020-11-12 06:16:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:16:59,082 INFO L481 AbstractCegarLoop]: Abstraction has 1574 states and 2263 transitions. [2020-11-12 06:16:59,082 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) [2020-11-12 06:16:59,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2263 transitions. [2020-11-12 06:16:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:16:59,086 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:59,086 INFO L494 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] [2020-11-12 06:16:59,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:16:59,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:59,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:59,087 INFO L82 PathProgramCache]: Analyzing trace with hash -491273153, now seen corresponding path program 1 times [2020-11-12 06:16:59,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:59,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065094760] [2020-11-12 06:16:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:16:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:16:59,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065094760] [2020-11-12 06:16:59,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:16:59,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:16:59,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261141497] [2020-11-12 06:16:59,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:16:59,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:16:59,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:16:59,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:16:59,280 INFO L87 Difference]: Start difference. First operand 1574 states and 2263 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-12 06:16:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:16:59,426 INFO L93 Difference]: Finished difference Result 2684 states and 4053 transitions. [2020-11-12 06:16:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:16:59,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2020-11-12 06:16:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:16:59,435 INFO L225 Difference]: With dead ends: 2684 [2020-11-12 06:16:59,435 INFO L226 Difference]: Without dead ends: 1563 [2020-11-12 06:16:59,435 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:16:59,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2020-11-12 06:16:59,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2020-11-12 06:16:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1463 states have (on average 1.5358851674641147) internal successors, (2247), 1562 states have internal predecessors, (2247), 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) [2020-11-12 06:16:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2247 transitions. [2020-11-12 06:16:59,478 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2247 transitions. Word has length 49 [2020-11-12 06:16:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:16:59,479 INFO L481 AbstractCegarLoop]: Abstraction has 1563 states and 2247 transitions. [2020-11-12 06:16:59,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-12 06:16:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2247 transitions. [2020-11-12 06:16:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:16:59,483 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:59,483 INFO L494 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] [2020-11-12 06:16:59,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:16:59,484 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:59,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:59,485 INFO L82 PathProgramCache]: Analyzing trace with hash -110706243, now seen corresponding path program 2 times [2020-11-12 06:16:59,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:59,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856540722] [2020-11-12 06:16:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:16:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:16:59,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856540722] [2020-11-12 06:16:59,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:16:59,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:16:59,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926876868] [2020-11-12 06:16:59,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:16:59,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:16:59,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:16:59,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:16:59,669 INFO L87 Difference]: Start difference. First operand 1563 states and 2247 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-12 06:16:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:16:59,861 INFO L93 Difference]: Finished difference Result 2371 states and 3602 transitions. [2020-11-12 06:16:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:16:59,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2020-11-12 06:16:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:16:59,868 INFO L225 Difference]: With dead ends: 2371 [2020-11-12 06:16:59,869 INFO L226 Difference]: Without dead ends: 1257 [2020-11-12 06:16:59,869 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:16:59,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-11-12 06:16:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2020-11-12 06:16:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1177 states have (on average 1.5352591333899746) internal successors, (1807), 1256 states have internal predecessors, (1807), 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) [2020-11-12 06:16:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1807 transitions. [2020-11-12 06:16:59,904 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1807 transitions. Word has length 49 [2020-11-12 06:16:59,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:16:59,906 INFO L481 AbstractCegarLoop]: Abstraction has 1257 states and 1807 transitions. [2020-11-12 06:16:59,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-11-12 06:16:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1807 transitions. [2020-11-12 06:16:59,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:16:59,911 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:16:59,912 INFO L494 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] [2020-11-12 06:16:59,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:16:59,912 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:16:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:16:59,913 INFO L82 PathProgramCache]: Analyzing trace with hash -811265535, now seen corresponding path program 1 times [2020-11-12 06:16:59,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:16:59,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680616445] [2020-11-12 06:16:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:16:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:17:00,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680616445] [2020-11-12 06:17:00,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:00,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:00,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163201991] [2020-11-12 06:17:00,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:00,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:00,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:00,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:00,103 INFO L87 Difference]: Start difference. First operand 1257 states and 1807 transitions. 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) [2020-11-12 06:17:00,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:00,235 INFO L93 Difference]: Finished difference Result 1551 states and 2174 transitions. [2020-11-12 06:17:00,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:00,236 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 [2020-11-12 06:17:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:00,244 INFO L225 Difference]: With dead ends: 1551 [2020-11-12 06:17:00,244 INFO L226 Difference]: Without dead ends: 1229 [2020-11-12 06:17:00,244 INFO L749 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 [2020-11-12 06:17:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-11-12 06:17:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2020-11-12 06:17:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1151 states have (on average 1.530842745438749) internal successors, (1762), 1228 states have internal predecessors, (1762), 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) [2020-11-12 06:17:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1762 transitions. [2020-11-12 06:17:00,294 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1762 transitions. Word has length 50 [2020-11-12 06:17:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:00,296 INFO L481 AbstractCegarLoop]: Abstraction has 1229 states and 1762 transitions. [2020-11-12 06:17:00,297 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) [2020-11-12 06:17:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1762 transitions. [2020-11-12 06:17:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:17:00,302 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:00,302 INFO L494 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] [2020-11-12 06:17:00,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:17:00,303 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1203143900, now seen corresponding path program 1 times [2020-11-12 06:17:00,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:00,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675268378] [2020-11-12 06:17:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:17:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675268378] [2020-11-12 06:17:00,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:00,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:00,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794091345] [2020-11-12 06:17:00,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:00,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:00,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:00,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:00,482 INFO L87 Difference]: Start difference. First operand 1229 states and 1762 transitions. 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) [2020-11-12 06:17:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:00,639 INFO L93 Difference]: Finished difference Result 1346 states and 1865 transitions. [2020-11-12 06:17:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:17:00,640 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 [2020-11-12 06:17:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:00,645 INFO L225 Difference]: With dead ends: 1346 [2020-11-12 06:17:00,645 INFO L226 Difference]: Without dead ends: 1013 [2020-11-12 06:17:00,646 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:17:00,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-11-12 06:17:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1013. [2020-11-12 06:17:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 950 states have (on average 1.5073684210526315) internal successors, (1432), 1012 states have internal predecessors, (1432), 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) [2020-11-12 06:17:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1432 transitions. [2020-11-12 06:17:00,681 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1432 transitions. Word has length 51 [2020-11-12 06:17:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:00,681 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1432 transitions. [2020-11-12 06:17:00,681 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) [2020-11-12 06:17:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1432 transitions. [2020-11-12 06:17:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 06:17:00,684 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:00,684 INFO L494 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] [2020-11-12 06:17:00,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:17:00,685 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:00,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1482004455, now seen corresponding path program 1 times [2020-11-12 06:17:00,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:00,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007551544] [2020-11-12 06:17:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:17:00,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007551544] [2020-11-12 06:17:00,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:00,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:17:00,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456102237] [2020-11-12 06:17:00,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:17:00,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:00,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:17:00,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:17:00,842 INFO L87 Difference]: Start difference. First operand 1013 states and 1432 transitions. 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) [2020-11-12 06:17:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:00,992 INFO L93 Difference]: Finished difference Result 797 states and 1075 transitions. [2020-11-12 06:17:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:17:00,992 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 [2020-11-12 06:17:00,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:00,995 INFO L225 Difference]: With dead ends: 797 [2020-11-12 06:17:00,995 INFO L226 Difference]: Without dead ends: 482 [2020-11-12 06:17:00,996 INFO L749 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 [2020-11-12 06:17:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-11-12 06:17:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-11-12 06:17:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 455 states have (on average 1.4461538461538461) internal successors, (658), 481 states have internal predecessors, (658), 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) [2020-11-12 06:17:01,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 658 transitions. [2020-11-12 06:17:01,009 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 658 transitions. Word has length 52 [2020-11-12 06:17:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:01,009 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 658 transitions. [2020-11-12 06:17:01,009 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) [2020-11-12 06:17:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 658 transitions. [2020-11-12 06:17:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:17:01,011 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:01,011 INFO L494 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] [2020-11-12 06:17:01,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:17:01,011 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:01,012 INFO L82 PathProgramCache]: Analyzing trace with hash 357086726, now seen corresponding path program 1 times [2020-11-12 06:17:01,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:01,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985004206] [2020-11-12 06:17:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:17:01,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985004206] [2020-11-12 06:17:01,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:01,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:01,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538904684] [2020-11-12 06:17:01,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:01,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:01,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:01,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:01,105 INFO L87 Difference]: Start difference. First operand 482 states and 658 transitions. 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) [2020-11-12 06:17:01,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:01,184 INFO L93 Difference]: Finished difference Result 374 states and 550 transitions. [2020-11-12 06:17:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:17:01,185 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 [2020-11-12 06:17:01,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:01,185 INFO L225 Difference]: With dead ends: 374 [2020-11-12 06:17:01,185 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:17:01,186 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:17:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:17:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:17:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-12 06:17:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:17:01,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 06:17:01,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:01,187 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:17:01,187 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) [2020-11-12 06:17:01,187 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:17:01,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:17:01,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:17:01,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:17:01 BasicIcfg [2020-11-12 06:17:01,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:17:01,195 INFO L168 Benchmark]: Toolchain (without parser) took 7944.87 ms. Allocated memory was 302.0 MB in the beginning and 620.8 MB in the end (delta: 318.8 MB). Free memory was 275.6 MB in the beginning and 452.1 MB in the end (delta: -176.5 MB). Peak memory consumption was 143.7 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:01,195 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:17:01,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.59 ms. Allocated memory is still 302.0 MB. Free memory was 274.9 MB in the beginning and 277.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:01,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.78 ms. Allocated memory is still 302.0 MB. Free memory was 277.7 MB in the beginning and 275.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:17:01,197 INFO L168 Benchmark]: Boogie Preprocessor took 29.30 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:01,198 INFO L168 Benchmark]: RCFGBuilder took 667.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 249.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:01,199 INFO L168 Benchmark]: TraceAbstraction took 6485.78 ms. Allocated memory was 302.0 MB in the beginning and 620.8 MB in the end (delta: 318.8 MB). Free memory was 249.4 MB in the beginning and 452.1 MB in the end (delta: -202.6 MB). Peak memory consumption was 115.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:01,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 683.59 ms. Allocated memory is still 302.0 MB. Free memory was 274.9 MB in the beginning and 277.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.78 ms. Allocated memory is still 302.0 MB. Free memory was 277.7 MB in the beginning and 275.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.30 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 667.65 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 249.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6485.78 ms. Allocated memory was 302.0 MB in the beginning and 620.8 MB in the end (delta: 318.8 MB). Free memory was 249.4 MB in the beginning and 452.1 MB in the end (delta: -202.6 MB). Peak memory consumption was 115.1 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: 6.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 645 SDtfs, 833 SDslu, 2343 SDs, 0 SdLazy, 291 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.4s 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: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 55353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...