/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/safe017_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:25:08,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:25:08,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:25:08,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:25:08,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:25:08,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:25:08,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:25:08,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:25:08,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:25:08,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:25:08,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:25:08,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:25:08,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:25:08,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:25:08,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:25:08,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:25:08,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:25:08,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:25:08,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:25:08,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:25:08,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:25:08,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:25:08,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:25:08,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:25:08,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-16 17:25:08,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-16 17:25:08,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-16 17:25:08,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-16 17:25:08,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-16 17:25:08,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-16 17:25:08,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-16 17:25:08,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-16 17:25:08,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-16 17:25:08,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-16 17:25:08,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-16 17:25:08,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-16 17:25:08,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-16 17:25:08,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-16 17:25:08,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:25:08,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:25:08,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:25:08,911 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 [2021-02-16 17:25:08,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:25:08,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:25:08,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:25:08,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:25:08,964 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:25:08,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:25:08,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:25:08,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:25:08,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:25:08,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:25:08,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:25:08,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:25:08,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:25:08,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:25:08,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:25:08,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:25:08,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:25:08,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:25:08,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:25:08,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:25:08,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:25:08,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:25:08,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:25:08,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:25:08,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:25:08,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:25:08,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:25:08,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:25:08,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:25:08,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:25:09,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:25:09,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:25:09,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:25:09,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:25:09,400 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:25:09,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-02-16 17:25:09,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daa9d054/eb2f63c9c8764b109f7794c6e82b3ac2/FLAGe256a41a3 [2021-02-16 17:25:10,375 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:25:10,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-02-16 17:25:10,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daa9d054/eb2f63c9c8764b109f7794c6e82b3ac2/FLAGe256a41a3 [2021-02-16 17:25:10,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daa9d054/eb2f63c9c8764b109f7794c6e82b3ac2 [2021-02-16 17:25:10,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:25:10,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:25:10,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:25:10,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:25:10,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:25:10,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:25:10" (1/1) ... [2021-02-16 17:25:10,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c34743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:10, skipping insertion in model container [2021-02-16 17:25:10,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:25:10" (1/1) ... [2021-02-16 17:25:10,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:25:10,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:25:10,925 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i[949,962] [2021-02-16 17:25:11,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:25:11,175 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:25:11,200 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i[949,962] [2021-02-16 17:25:11,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:25:11,470 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:25:11,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11 WrapperNode [2021-02-16 17:25:11,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:25:11,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:25:11,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:25:11,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:25:11,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:25:11,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:25:11,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:25:11,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:25:11,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (1/1) ... [2021-02-16 17:25:11,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:25:11,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:25:11,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:25:11,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:25:11,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (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 [2021-02-16 17:25:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:25:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:25:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:25:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:25:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 17:25:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 17:25:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 17:25:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 17:25:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-02-16 17:25:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-02-16 17:25:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:25:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:25:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:25:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:25:11,743 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:25:13,992 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:25:13,993 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-02-16 17:25:13,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:25:13 BoogieIcfgContainer [2021-02-16 17:25:13,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:25:13,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:25:13,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:25:14,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:25:14,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:25:10" (1/3) ... [2021-02-16 17:25:14,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61806577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:25:14, skipping insertion in model container [2021-02-16 17:25:14,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:25:11" (2/3) ... [2021-02-16 17:25:14,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61806577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:25:14, skipping insertion in model container [2021-02-16 17:25:14,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:25:13" (3/3) ... [2021-02-16 17:25:14,005 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.opt.i [2021-02-16 17:25:14,013 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:25:14,013 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:25:14,019 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-02-16 17:25:14,020 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:25:14,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,060 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,061 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,062 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,063 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,065 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,068 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,081 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,086 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:25:14,087 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:25:14,109 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-02-16 17:25:14,131 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:25:14,131 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:25:14,131 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:25:14,131 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:25:14,131 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:25:14,132 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:25:14,132 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:25:14,132 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:25:14,145 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 95 transitions, 205 flow [2021-02-16 17:25:15,172 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13428 states, 13424 states have (on average 3.6315554231227654) internal successors, (48750), 13427 states have internal predecessors, (48750), 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) [2021-02-16 17:25:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 13428 states, 13424 states have (on average 3.6315554231227654) internal successors, (48750), 13427 states have internal predecessors, (48750), 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) [2021-02-16 17:25:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-16 17:25:15,238 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:15,239 INFO L505 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] [2021-02-16 17:25:15,240 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash -186725599, now seen corresponding path program 1 times [2021-02-16 17:25:15,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:15,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587849202] [2021-02-16 17:25:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:15,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:15,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:15,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:15,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:15,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587849202] [2021-02-16 17:25:15,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:15,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-16 17:25:15,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275858382] [2021-02-16 17:25:15,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-16 17:25:15,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:15,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-16 17:25:15,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-16 17:25:15,752 INFO L87 Difference]: Start difference. First operand has 13428 states, 13424 states have (on average 3.6315554231227654) internal successors, (48750), 13427 states have internal predecessors, (48750), 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 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-02-16 17:25:16,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:16,117 INFO L93 Difference]: Finished difference Result 11492 states and 40660 transitions. [2021-02-16 17:25:16,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-16 17:25:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-02-16 17:25:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:16,289 INFO L225 Difference]: With dead ends: 11492 [2021-02-16 17:25:16,289 INFO L226 Difference]: Without dead ends: 6564 [2021-02-16 17:25:16,291 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-16 17:25:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2021-02-16 17:25:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 6564. [2021-02-16 17:25:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6564 states, 6563 states have (on average 3.4868200518055765) internal successors, (22884), 6563 states have internal predecessors, (22884), 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) [2021-02-16 17:25:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6564 states to 6564 states and 22884 transitions. [2021-02-16 17:25:16,772 INFO L78 Accepts]: Start accepts. Automaton has 6564 states and 22884 transitions. Word has length 38 [2021-02-16 17:25:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:16,772 INFO L480 AbstractCegarLoop]: Abstraction has 6564 states and 22884 transitions. [2021-02-16 17:25:16,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-02-16 17:25:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states and 22884 transitions. [2021-02-16 17:25:16,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-16 17:25:16,788 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:16,788 INFO L505 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, 1, 1, 1] [2021-02-16 17:25:16,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:25:16,789 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:16,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:16,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1293174682, now seen corresponding path program 1 times [2021-02-16 17:25:16,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:16,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173347558] [2021-02-16 17:25:16,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:17,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:17,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:17,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:17,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:17,183 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:17,190 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:17,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:17,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:17,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:17,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:17,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:17,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:17,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:17,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173347558] [2021-02-16 17:25:17,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:17,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:25:17,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671324680] [2021-02-16 17:25:17,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:25:17,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:17,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:25:17,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:25:17,244 INFO L87 Difference]: Start difference. First operand 6564 states and 22884 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2021-02-16 17:25:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:17,521 INFO L93 Difference]: Finished difference Result 7684 states and 26504 transitions. [2021-02-16 17:25:17,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:25:17,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-02-16 17:25:17,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:17,576 INFO L225 Difference]: With dead ends: 7684 [2021-02-16 17:25:17,577 INFO L226 Difference]: Without dead ends: 5892 [2021-02-16 17:25:17,578 INFO L761 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 [2021-02-16 17:25:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2021-02-16 17:25:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2021-02-16 17:25:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5891 states have (on average 3.4588355117976572) internal successors, (20376), 5891 states have internal predecessors, (20376), 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) [2021-02-16 17:25:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 20376 transitions. [2021-02-16 17:25:17,904 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 20376 transitions. Word has length 57 [2021-02-16 17:25:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:17,907 INFO L480 AbstractCegarLoop]: Abstraction has 5892 states and 20376 transitions. [2021-02-16 17:25:17,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2021-02-16 17:25:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 20376 transitions. [2021-02-16 17:25:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-16 17:25:17,928 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:17,928 INFO L505 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, 1, 1, 1, 1, 1] [2021-02-16 17:25:17,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:25:17,929 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:17,936 INFO L82 PathProgramCache]: Analyzing trace with hash 456860895, now seen corresponding path program 1 times [2021-02-16 17:25:17,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:17,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224441974] [2021-02-16 17:25:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:18,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:18,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:18,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:18,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:18,142 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:18,143 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:18,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:18,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:18,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:18,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:18,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:18,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:18,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224441974] [2021-02-16 17:25:18,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:18,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:25:18,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241343131] [2021-02-16 17:25:18,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:25:18,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:18,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:25:18,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:25:18,204 INFO L87 Difference]: Start difference. First operand 5892 states and 20376 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-02-16 17:25:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:18,488 INFO L93 Difference]: Finished difference Result 7020 states and 24040 transitions. [2021-02-16 17:25:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:25:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2021-02-16 17:25:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:18,559 INFO L225 Difference]: With dead ends: 7020 [2021-02-16 17:25:18,559 INFO L226 Difference]: Without dead ends: 5676 [2021-02-16 17:25:18,561 INFO L761 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 [2021-02-16 17:25:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2021-02-16 17:25:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5676. [2021-02-16 17:25:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 3.444581497797357) internal successors, (19548), 5675 states have internal predecessors, (19548), 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) [2021-02-16 17:25:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 19548 transitions. [2021-02-16 17:25:18,831 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 19548 transitions. Word has length 59 [2021-02-16 17:25:18,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:18,834 INFO L480 AbstractCegarLoop]: Abstraction has 5676 states and 19548 transitions. [2021-02-16 17:25:18,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-02-16 17:25:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 19548 transitions. [2021-02-16 17:25:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-16 17:25:18,852 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:18,852 INFO L505 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:18,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:25:18,852 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:18,854 INFO L82 PathProgramCache]: Analyzing trace with hash 547779774, now seen corresponding path program 1 times [2021-02-16 17:25:18,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:18,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280494088] [2021-02-16 17:25:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:19,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:19,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:19,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:19,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:19,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:19,210 WARN L141 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-02-16 17:25:19,214 WARN L147 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size 31 [2021-02-16 17:25:19,246 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:19,248 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:19,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:19,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:19,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:19,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:19,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280494088] [2021-02-16 17:25:19,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:19,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-16 17:25:19,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852811563] [2021-02-16 17:25:19,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-16 17:25:19,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:19,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-16 17:25:19,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-02-16 17:25:19,310 INFO L87 Difference]: Start difference. First operand 5676 states and 19548 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 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) [2021-02-16 17:25:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:19,818 INFO L93 Difference]: Finished difference Result 6840 states and 23350 transitions. [2021-02-16 17:25:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-16 17:25:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 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 61 [2021-02-16 17:25:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:19,848 INFO L225 Difference]: With dead ends: 6840 [2021-02-16 17:25:19,848 INFO L226 Difference]: Without dead ends: 5640 [2021-02-16 17:25:19,849 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-02-16 17:25:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2021-02-16 17:25:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5640. [2021-02-16 17:25:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 5639 states have (on average 3.44103564461784) internal successors, (19404), 5639 states have internal predecessors, (19404), 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) [2021-02-16 17:25:20,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 19404 transitions. [2021-02-16 17:25:20,088 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 19404 transitions. Word has length 61 [2021-02-16 17:25:20,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:20,090 INFO L480 AbstractCegarLoop]: Abstraction has 5640 states and 19404 transitions. [2021-02-16 17:25:20,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 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) [2021-02-16 17:25:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 19404 transitions. [2021-02-16 17:25:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-16 17:25:20,115 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:20,116 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:20,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:25:20,116 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:20,117 INFO L82 PathProgramCache]: Analyzing trace with hash -211039894, now seen corresponding path program 1 times [2021-02-16 17:25:20,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:20,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125679942] [2021-02-16 17:25:20,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:20,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:20,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:20,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:20,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:20,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:20,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 17:25:20,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-16 17:25:20,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:20,584 WARN L141 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-02-16 17:25:20,586 WARN L147 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size 31 [2021-02-16 17:25:20,616 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:20,617 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:20,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:20,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:20,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:20,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:20,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125679942] [2021-02-16 17:25:20,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:20,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-16 17:25:20,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410456490] [2021-02-16 17:25:20,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-16 17:25:20,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:20,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-16 17:25:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:25:20,702 INFO L87 Difference]: Start difference. First operand 5640 states and 19404 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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) [2021-02-16 17:25:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:21,204 INFO L93 Difference]: Finished difference Result 6602 states and 22542 transitions. [2021-02-16 17:25:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-16 17:25:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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 62 [2021-02-16 17:25:21,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:21,237 INFO L225 Difference]: With dead ends: 6602 [2021-02-16 17:25:21,238 INFO L226 Difference]: Without dead ends: 5834 [2021-02-16 17:25:21,238 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2021-02-16 17:25:21,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2021-02-16 17:25:21,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5592. [2021-02-16 17:25:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5592 states, 5591 states have (on average 3.4383831157216957) internal successors, (19224), 5591 states have internal predecessors, (19224), 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) [2021-02-16 17:25:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5592 states to 5592 states and 19224 transitions. [2021-02-16 17:25:21,520 INFO L78 Accepts]: Start accepts. Automaton has 5592 states and 19224 transitions. Word has length 62 [2021-02-16 17:25:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:21,522 INFO L480 AbstractCegarLoop]: Abstraction has 5592 states and 19224 transitions. [2021-02-16 17:25:21,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 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) [2021-02-16 17:25:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5592 states and 19224 transitions. [2021-02-16 17:25:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-16 17:25:21,537 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:21,537 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:21,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 17:25:21,538 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:21,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:21,538 INFO L82 PathProgramCache]: Analyzing trace with hash 327960956, now seen corresponding path program 1 times [2021-02-16 17:25:21,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:21,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933136018] [2021-02-16 17:25:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:21,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:21,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:21,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:21,757 WARN L141 QuantifierPusher]: treesize reduction 27, result has 73.3 percent of original size [2021-02-16 17:25:21,760 WARN L147 QuantifierPusher]: treesize reduction 27, result has 73.3 percent of original size 74 [2021-02-16 17:25:21,796 WARN L141 QuantifierPusher]: treesize reduction 27, result has 74.0 percent of original size [2021-02-16 17:25:21,799 WARN L147 QuantifierPusher]: treesize reduction 27, result has 74.0 percent of original size 77 [2021-02-16 17:25:21,834 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:21,835 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:21,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:21,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:21,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:21,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:21,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933136018] [2021-02-16 17:25:21,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:21,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-16 17:25:21,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443340902] [2021-02-16 17:25:21,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-16 17:25:21,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:21,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-16 17:25:21,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-16 17:25:21,903 INFO L87 Difference]: Start difference. First operand 5592 states and 19224 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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) [2021-02-16 17:25:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:22,483 INFO L93 Difference]: Finished difference Result 6476 states and 22110 transitions. [2021-02-16 17:25:22,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:22,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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 62 [2021-02-16 17:25:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:22,584 INFO L225 Difference]: With dead ends: 6476 [2021-02-16 17:25:22,584 INFO L226 Difference]: Without dead ends: 5644 [2021-02-16 17:25:22,585 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2021-02-16 17:25:22,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5644 states. [2021-02-16 17:25:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5644 to 5644. [2021-02-16 17:25:22,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5644 states, 5643 states have (on average 3.439305334042176) internal successors, (19408), 5643 states have internal predecessors, (19408), 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) [2021-02-16 17:25:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 19408 transitions. [2021-02-16 17:25:22,798 INFO L78 Accepts]: Start accepts. Automaton has 5644 states and 19408 transitions. Word has length 62 [2021-02-16 17:25:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:22,798 INFO L480 AbstractCegarLoop]: Abstraction has 5644 states and 19408 transitions. [2021-02-16 17:25:22,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 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) [2021-02-16 17:25:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5644 states and 19408 transitions. [2021-02-16 17:25:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:25:22,813 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:22,814 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:22,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 17:25:22,814 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:22,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1073457400, now seen corresponding path program 1 times [2021-02-16 17:25:22,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:22,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696684084] [2021-02-16 17:25:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:22,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:22,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:22,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:22,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:22,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:22,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:23,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:23,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:23,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:23,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 17:25:23,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:23,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:23,097 WARN L141 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-02-16 17:25:23,099 WARN L147 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size 44 [2021-02-16 17:25:23,122 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:23,123 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:23,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:23,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:23,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:23,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:23,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696684084] [2021-02-16 17:25:23,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:23,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-16 17:25:23,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41424209] [2021-02-16 17:25:23,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-16 17:25:23,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:23,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-16 17:25:23,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:25:23,214 INFO L87 Difference]: Start difference. First operand 5644 states and 19408 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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) [2021-02-16 17:25:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:23,934 INFO L93 Difference]: Finished difference Result 6236 states and 21268 transitions. [2021-02-16 17:25:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-16 17:25:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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 63 [2021-02-16 17:25:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:23,957 INFO L225 Difference]: With dead ends: 6236 [2021-02-16 17:25:23,957 INFO L226 Difference]: Without dead ends: 5596 [2021-02-16 17:25:23,958 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2021-02-16 17:25:23,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2021-02-16 17:25:24,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 5532. [2021-02-16 17:25:24,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5531 states have (on average 3.43446031459049) internal successors, (18996), 5531 states have internal predecessors, (18996), 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) [2021-02-16 17:25:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 18996 transitions. [2021-02-16 17:25:24,154 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 18996 transitions. Word has length 63 [2021-02-16 17:25:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:24,155 INFO L480 AbstractCegarLoop]: Abstraction has 5532 states and 18996 transitions. [2021-02-16 17:25:24,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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) [2021-02-16 17:25:24,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 18996 transitions. [2021-02-16 17:25:24,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:25:24,167 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:24,168 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:24,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 17:25:24,168 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:24,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:24,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1303951425, now seen corresponding path program 1 times [2021-02-16 17:25:24,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:24,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048568963] [2021-02-16 17:25:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:24,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:24,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:24,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:24,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:24,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:24,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:24,354 WARN L141 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-02-16 17:25:24,355 WARN L147 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size 31 [2021-02-16 17:25:24,377 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:24,379 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:24,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:24,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:24,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:24,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:24,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048568963] [2021-02-16 17:25:24,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:24,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-16 17:25:24,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638431257] [2021-02-16 17:25:24,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-16 17:25:24,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:24,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-16 17:25:24,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-02-16 17:25:24,446 INFO L87 Difference]: Start difference. First operand 5532 states and 18996 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 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) [2021-02-16 17:25:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:25,002 INFO L93 Difference]: Finished difference Result 6650 states and 22664 transitions. [2021-02-16 17:25:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-16 17:25:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 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 63 [2021-02-16 17:25:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:25,033 INFO L225 Difference]: With dead ends: 6650 [2021-02-16 17:25:25,034 INFO L226 Difference]: Without dead ends: 5882 [2021-02-16 17:25:25,034 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2021-02-16 17:25:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2021-02-16 17:25:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 5602. [2021-02-16 17:25:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5602 states, 5601 states have (on average 3.4247455811462237) internal successors, (19182), 5601 states have internal predecessors, (19182), 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) [2021-02-16 17:25:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5602 states to 5602 states and 19182 transitions. [2021-02-16 17:25:25,264 INFO L78 Accepts]: Start accepts. Automaton has 5602 states and 19182 transitions. Word has length 63 [2021-02-16 17:25:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:25,264 INFO L480 AbstractCegarLoop]: Abstraction has 5602 states and 19182 transitions. [2021-02-16 17:25:25,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 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) [2021-02-16 17:25:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5602 states and 19182 transitions. [2021-02-16 17:25:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:25:25,278 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:25,278 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:25,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-16 17:25:25,279 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:25,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:25,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1797704671, now seen corresponding path program 2 times [2021-02-16 17:25:25,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:25,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179664178] [2021-02-16 17:25:25,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:25,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:25,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:25,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:25,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:25,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:25,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 17:25:25,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-16 17:25:25,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-16 17:25:25,553 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:25,554 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:25,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:25,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:25,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:25,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:25,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179664178] [2021-02-16 17:25:25,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:25,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-16 17:25:25,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700300053] [2021-02-16 17:25:25,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-16 17:25:25,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:25,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-16 17:25:25,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:25:25,627 INFO L87 Difference]: Start difference. First operand 5602 states and 19182 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2021-02-16 17:25:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:26,122 INFO L93 Difference]: Finished difference Result 6282 states and 21396 transitions. [2021-02-16 17:25:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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 63 [2021-02-16 17:25:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:26,143 INFO L225 Difference]: With dead ends: 6282 [2021-02-16 17:25:26,143 INFO L226 Difference]: Without dead ends: 5642 [2021-02-16 17:25:26,144 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-02-16 17:25:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5642 states. [2021-02-16 17:25:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5642 to 5292. [2021-02-16 17:25:26,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 3.429219429219429) internal successors, (18144), 5291 states have internal predecessors, (18144), 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) [2021-02-16 17:25:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 18144 transitions. [2021-02-16 17:25:26,391 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 18144 transitions. Word has length 63 [2021-02-16 17:25:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:26,391 INFO L480 AbstractCegarLoop]: Abstraction has 5292 states and 18144 transitions. [2021-02-16 17:25:26,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 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) [2021-02-16 17:25:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 18144 transitions. [2021-02-16 17:25:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:25:26,411 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:26,411 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:26,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-16 17:25:26,412 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:26,412 INFO L82 PathProgramCache]: Analyzing trace with hash 907674960, now seen corresponding path program 1 times [2021-02-16 17:25:26,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:26,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797360674] [2021-02-16 17:25:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:26,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:26,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:26,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:26,510 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:26,511 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:26,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:26,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:26,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:26,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797360674] [2021-02-16 17:25:26,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:26,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:25:26,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672292558] [2021-02-16 17:25:26,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:25:26,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:26,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:25:26,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:25:26,559 INFO L87 Difference]: Start difference. First operand 5292 states and 18144 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-02-16 17:25:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:26,705 INFO L93 Difference]: Finished difference Result 8636 states and 29628 transitions. [2021-02-16 17:25:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-16 17:25:26,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-02-16 17:25:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:26,721 INFO L225 Difference]: With dead ends: 8636 [2021-02-16 17:25:26,722 INFO L226 Difference]: Without dead ends: 5004 [2021-02-16 17:25:26,722 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:25:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states. [2021-02-16 17:25:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 5004. [2021-02-16 17:25:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5004 states, 5003 states have (on average 3.4035578652808316) internal successors, (17028), 5003 states have internal predecessors, (17028), 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) [2021-02-16 17:25:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 17028 transitions. [2021-02-16 17:25:26,878 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 17028 transitions. Word has length 63 [2021-02-16 17:25:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:26,878 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 17028 transitions. [2021-02-16 17:25:26,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-02-16 17:25:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 17028 transitions. [2021-02-16 17:25:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 17:25:26,890 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:26,890 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:26,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-16 17:25:26,891 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:26,891 INFO L82 PathProgramCache]: Analyzing trace with hash 671730204, now seen corresponding path program 1 times [2021-02-16 17:25:26,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:26,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42950807] [2021-02-16 17:25:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:26,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:26,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:26,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:26,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:26,992 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:26,993 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:27,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:27,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:27,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:27,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42950807] [2021-02-16 17:25:27,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:27,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:25:27,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141504536] [2021-02-16 17:25:27,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:25:27,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:27,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:25:27,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:25:27,043 INFO L87 Difference]: Start difference. First operand 5004 states and 17028 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-02-16 17:25:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:27,387 INFO L93 Difference]: Finished difference Result 11646 states and 39131 transitions. [2021-02-16 17:25:27,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:27,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-02-16 17:25:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:27,404 INFO L225 Difference]: With dead ends: 11646 [2021-02-16 17:25:27,405 INFO L226 Difference]: Without dead ends: 5046 [2021-02-16 17:25:27,405 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-02-16 17:25:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2021-02-16 17:25:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 4176. [2021-02-16 17:25:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4175 states have (on average 3.272814371257485) internal successors, (13664), 4175 states have internal predecessors, (13664), 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) [2021-02-16 17:25:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 13664 transitions. [2021-02-16 17:25:27,590 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 13664 transitions. Word has length 63 [2021-02-16 17:25:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:27,591 INFO L480 AbstractCegarLoop]: Abstraction has 4176 states and 13664 transitions. [2021-02-16 17:25:27,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-02-16 17:25:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 13664 transitions. [2021-02-16 17:25:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-02-16 17:25:27,600 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:27,600 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:27,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-16 17:25:27,601 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:27,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:27,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1366940332, now seen corresponding path program 1 times [2021-02-16 17:25:27,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:27,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928330426] [2021-02-16 17:25:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:27,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:27,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:27,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:27,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:27,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:27,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:27,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 17:25:27,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:27,823 WARN L141 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-02-16 17:25:27,825 WARN L147 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size 60 [2021-02-16 17:25:27,866 WARN L141 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-02-16 17:25:27,868 WARN L147 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size 60 [2021-02-16 17:25:27,909 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:27,910 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:27,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:27,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:27,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:27,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:27,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928330426] [2021-02-16 17:25:27,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:27,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-16 17:25:27,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373206751] [2021-02-16 17:25:27,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-16 17:25:27,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:27,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-16 17:25:27,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:25:27,990 INFO L87 Difference]: Start difference. First operand 4176 states and 13664 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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) [2021-02-16 17:25:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:28,445 INFO L93 Difference]: Finished difference Result 4704 states and 15316 transitions. [2021-02-16 17:25:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-16 17:25:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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 64 [2021-02-16 17:25:28,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:28,455 INFO L225 Difference]: With dead ends: 4704 [2021-02-16 17:25:28,455 INFO L226 Difference]: Without dead ends: 4128 [2021-02-16 17:25:28,455 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2021-02-16 17:25:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2021-02-16 17:25:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 4128. [2021-02-16 17:25:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4128 states, 4127 states have (on average 3.2672643566755513) internal successors, (13484), 4127 states have internal predecessors, (13484), 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) [2021-02-16 17:25:28,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4128 states to 4128 states and 13484 transitions. [2021-02-16 17:25:28,599 INFO L78 Accepts]: Start accepts. Automaton has 4128 states and 13484 transitions. Word has length 64 [2021-02-16 17:25:28,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:28,599 INFO L480 AbstractCegarLoop]: Abstraction has 4128 states and 13484 transitions. [2021-02-16 17:25:28,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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) [2021-02-16 17:25:28,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4128 states and 13484 transitions. [2021-02-16 17:25:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-02-16 17:25:28,610 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:28,610 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:28,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-16 17:25:28,610 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:28,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash -344285634, now seen corresponding path program 1 times [2021-02-16 17:25:28,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:28,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665923305] [2021-02-16 17:25:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:28,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:28,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:28,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:28,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:28,721 WARN L141 QuantifierPusher]: treesize reduction 29, result has 51.7 percent of original size [2021-02-16 17:25:28,722 WARN L147 QuantifierPusher]: treesize reduction 29, result has 51.7 percent of original size 31 [2021-02-16 17:25:28,729 WARN L141 QuantifierPusher]: treesize reduction 29, result has 54.0 percent of original size [2021-02-16 17:25:28,730 WARN L147 QuantifierPusher]: treesize reduction 29, result has 54.0 percent of original size 34 [2021-02-16 17:25:28,751 WARN L141 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size [2021-02-16 17:25:28,753 WARN L147 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size 69 [2021-02-16 17:25:28,801 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:28,802 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:28,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:28,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:28,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:28,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:28,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:28,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:28,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665923305] [2021-02-16 17:25:28,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:28,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:25:28,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226824932] [2021-02-16 17:25:28,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:25:28,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:28,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:25:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:25:28,866 INFO L87 Difference]: Start difference. First operand 4128 states and 13484 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2021-02-16 17:25:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:29,488 INFO L93 Difference]: Finished difference Result 5212 states and 17045 transitions. [2021-02-16 17:25:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:25:29,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2021-02-16 17:25:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:29,498 INFO L225 Difference]: With dead ends: 5212 [2021-02-16 17:25:29,498 INFO L226 Difference]: Without dead ends: 4580 [2021-02-16 17:25:29,499 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:25:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2021-02-16 17:25:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 4234. [2021-02-16 17:25:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4233 states have (on average 3.266950153555398) internal successors, (13829), 4233 states have internal predecessors, (13829), 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) [2021-02-16 17:25:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 13829 transitions. [2021-02-16 17:25:29,652 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 13829 transitions. Word has length 64 [2021-02-16 17:25:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:29,652 INFO L480 AbstractCegarLoop]: Abstraction has 4234 states and 13829 transitions. [2021-02-16 17:25:29,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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) [2021-02-16 17:25:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 13829 transitions. [2021-02-16 17:25:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-02-16 17:25:29,663 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:29,663 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:29,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-16 17:25:29,664 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:29,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:29,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1535985018, now seen corresponding path program 2 times [2021-02-16 17:25:29,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:29,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20972972] [2021-02-16 17:25:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:29,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:29,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:29,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:29,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:29,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:29,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:29,811 WARN L141 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size [2021-02-16 17:25:29,812 WARN L147 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size 43 [2021-02-16 17:25:29,845 WARN L141 QuantifierPusher]: treesize reduction 54, result has 54.2 percent of original size [2021-02-16 17:25:29,847 WARN L147 QuantifierPusher]: treesize reduction 54, result has 54.2 percent of original size 64 [2021-02-16 17:25:29,895 WARN L141 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-02-16 17:25:29,902 WARN L147 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size 67 [2021-02-16 17:25:29,947 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:29,949 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:29,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:29,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:29,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:29,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:30,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:30,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:30,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20972972] [2021-02-16 17:25:30,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:30,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-16 17:25:30,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933811323] [2021-02-16 17:25:30,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-16 17:25:30,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:30,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-16 17:25:30,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-16 17:25:30,021 INFO L87 Difference]: Start difference. First operand 4234 states and 13829 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2021-02-16 17:25:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:30,849 INFO L93 Difference]: Finished difference Result 5598 states and 18187 transitions. [2021-02-16 17:25:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:30,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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 64 [2021-02-16 17:25:30,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:30,859 INFO L225 Difference]: With dead ends: 5598 [2021-02-16 17:25:30,859 INFO L226 Difference]: Without dead ends: 4342 [2021-02-16 17:25:30,860 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-02-16 17:25:30,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4342 states. [2021-02-16 17:25:30,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4342 to 4116. [2021-02-16 17:25:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4116 states, 4115 states have (on average 3.2262454434993924) internal successors, (13276), 4115 states have internal predecessors, (13276), 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) [2021-02-16 17:25:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4116 states to 4116 states and 13276 transitions. [2021-02-16 17:25:31,005 INFO L78 Accepts]: Start accepts. Automaton has 4116 states and 13276 transitions. Word has length 64 [2021-02-16 17:25:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:31,005 INFO L480 AbstractCegarLoop]: Abstraction has 4116 states and 13276 transitions. [2021-02-16 17:25:31,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2021-02-16 17:25:31,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4116 states and 13276 transitions. [2021-02-16 17:25:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:31,016 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:31,016 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:31,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-16 17:25:31,016 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:31,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:31,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1708649590, now seen corresponding path program 1 times [2021-02-16 17:25:31,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:31,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647626830] [2021-02-16 17:25:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:31,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:31,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:31,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:31,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:31,153 WARN L141 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-02-16 17:25:31,155 WARN L147 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size 37 [2021-02-16 17:25:31,165 WARN L141 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-02-16 17:25:31,167 WARN L147 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size 40 [2021-02-16 17:25:31,217 WARN L141 QuantifierPusher]: treesize reduction 26, result has 71.1 percent of original size [2021-02-16 17:25:31,220 WARN L147 QuantifierPusher]: treesize reduction 26, result has 71.1 percent of original size 64 [2021-02-16 17:25:31,300 WARN L141 QuantifierPusher]: treesize reduction 26, result has 68.7 percent of original size [2021-02-16 17:25:31,302 WARN L147 QuantifierPusher]: treesize reduction 26, result has 68.7 percent of original size 57 [2021-02-16 17:25:31,367 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:31,368 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:31,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:31,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:31,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:31,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:31,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647626830] [2021-02-16 17:25:31,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:31,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-16 17:25:31,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181669653] [2021-02-16 17:25:31,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-16 17:25:31,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-16 17:25:31,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:25:31,467 INFO L87 Difference]: Start difference. First operand 4116 states and 13276 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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) [2021-02-16 17:25:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:32,104 INFO L93 Difference]: Finished difference Result 4734 states and 15149 transitions. [2021-02-16 17:25:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:25:32,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:32,117 INFO L225 Difference]: With dead ends: 4734 [2021-02-16 17:25:32,117 INFO L226 Difference]: Without dead ends: 4254 [2021-02-16 17:25:32,120 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-02-16 17:25:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2021-02-16 17:25:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 4126. [2021-02-16 17:25:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 3.2254545454545456) internal successors, (13305), 4125 states have internal predecessors, (13305), 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) [2021-02-16 17:25:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 13305 transitions. [2021-02-16 17:25:32,262 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 13305 transitions. Word has length 65 [2021-02-16 17:25:32,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:32,262 INFO L480 AbstractCegarLoop]: Abstraction has 4126 states and 13305 transitions. [2021-02-16 17:25:32,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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) [2021-02-16 17:25:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 13305 transitions. [2021-02-16 17:25:32,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:32,273 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:32,273 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:32,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-16 17:25:32,273 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:32,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:32,274 INFO L82 PathProgramCache]: Analyzing trace with hash -668759235, now seen corresponding path program 1 times [2021-02-16 17:25:32,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:32,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8767452] [2021-02-16 17:25:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:32,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:32,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:32,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:32,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:32,410 WARN L141 QuantifierPusher]: treesize reduction 28, result has 62.2 percent of original size [2021-02-16 17:25:32,412 WARN L147 QuantifierPusher]: treesize reduction 28, result has 62.2 percent of original size 46 [2021-02-16 17:25:32,449 WARN L141 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-02-16 17:25:32,451 WARN L147 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size 49 [2021-02-16 17:25:32,498 WARN L141 QuantifierPusher]: treesize reduction 65, result has 50.0 percent of original size [2021-02-16 17:25:32,500 WARN L147 QuantifierPusher]: treesize reduction 65, result has 50.0 percent of original size 65 [2021-02-16 17:25:32,557 WARN L141 QuantifierPusher]: treesize reduction 65, result has 50.8 percent of original size [2021-02-16 17:25:32,559 WARN L147 QuantifierPusher]: treesize reduction 65, result has 50.8 percent of original size 67 [2021-02-16 17:25:32,609 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:32,610 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:32,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:32,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:32,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:32,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:32,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8767452] [2021-02-16 17:25:32,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:32,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-16 17:25:32,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955703084] [2021-02-16 17:25:32,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-16 17:25:32,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:32,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-16 17:25:32,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:25:32,696 INFO L87 Difference]: Start difference. First operand 4126 states and 13305 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:33,326 INFO L93 Difference]: Finished difference Result 4990 states and 15885 transitions. [2021-02-16 17:25:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:25:33,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:33,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:33,336 INFO L225 Difference]: With dead ends: 4990 [2021-02-16 17:25:33,336 INFO L226 Difference]: Without dead ends: 4214 [2021-02-16 17:25:33,336 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-02-16 17:25:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2021-02-16 17:25:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 4182. [2021-02-16 17:25:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 4181 states have (on average 3.210475962688352) internal successors, (13423), 4181 states have internal predecessors, (13423), 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) [2021-02-16 17:25:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 13423 transitions. [2021-02-16 17:25:33,470 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 13423 transitions. Word has length 65 [2021-02-16 17:25:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:33,471 INFO L480 AbstractCegarLoop]: Abstraction has 4182 states and 13423 transitions. [2021-02-16 17:25:33,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 13423 transitions. [2021-02-16 17:25:33,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:33,484 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:33,484 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:33,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-16 17:25:33,484 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:33,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash -132502342, now seen corresponding path program 2 times [2021-02-16 17:25:33,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:33,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093415435] [2021-02-16 17:25:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:33,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:33,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:33,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:33,622 WARN L141 QuantifierPusher]: treesize reduction 29, result has 54.0 percent of original size [2021-02-16 17:25:33,623 WARN L147 QuantifierPusher]: treesize reduction 29, result has 54.0 percent of original size 34 [2021-02-16 17:25:33,631 WARN L141 QuantifierPusher]: treesize reduction 18, result has 80.0 percent of original size [2021-02-16 17:25:33,633 WARN L147 QuantifierPusher]: treesize reduction 18, result has 80.0 percent of original size 72 [2021-02-16 17:25:33,685 WARN L141 QuantifierPusher]: treesize reduction 18, result has 80.6 percent of original size [2021-02-16 17:25:33,687 WARN L147 QuantifierPusher]: treesize reduction 18, result has 80.6 percent of original size 75 [2021-02-16 17:25:33,754 WARN L141 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size [2021-02-16 17:25:33,756 WARN L147 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size 69 [2021-02-16 17:25:33,808 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:33,809 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:33,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:33,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:33,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:33,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:33,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093415435] [2021-02-16 17:25:33,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:33,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-16 17:25:33,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055074052] [2021-02-16 17:25:33,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-16 17:25:33,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:33,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-16 17:25:33,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-02-16 17:25:33,890 INFO L87 Difference]: Start difference. First operand 4182 states and 13423 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2021-02-16 17:25:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:34,650 INFO L93 Difference]: Finished difference Result 5011 states and 16086 transitions. [2021-02-16 17:25:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-16 17:25:34,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:34,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:34,660 INFO L225 Difference]: With dead ends: 5011 [2021-02-16 17:25:34,660 INFO L226 Difference]: Without dead ends: 4467 [2021-02-16 17:25:34,660 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2021-02-16 17:25:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2021-02-16 17:25:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 4123. [2021-02-16 17:25:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 4122 states have (on average 3.2091217855409995) internal successors, (13228), 4122 states have internal predecessors, (13228), 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) [2021-02-16 17:25:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 13228 transitions. [2021-02-16 17:25:34,797 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 13228 transitions. Word has length 65 [2021-02-16 17:25:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:34,799 INFO L480 AbstractCegarLoop]: Abstraction has 4123 states and 13228 transitions. [2021-02-16 17:25:34,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2021-02-16 17:25:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 13228 transitions. [2021-02-16 17:25:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:34,811 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:34,811 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:34,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-16 17:25:34,811 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:34,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1785056129, now seen corresponding path program 2 times [2021-02-16 17:25:34,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:34,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873357884] [2021-02-16 17:25:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:34,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:34,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:34,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:34,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:34,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:34,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:34,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:34,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:34,949 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.7 percent of original size [2021-02-16 17:25:34,950 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.7 percent of original size 43 [2021-02-16 17:25:34,984 WARN L141 QuantifierPusher]: treesize reduction 17, result has 71.7 percent of original size [2021-02-16 17:25:34,985 WARN L147 QuantifierPusher]: treesize reduction 17, result has 71.7 percent of original size 43 [2021-02-16 17:25:35,022 WARN L141 QuantifierPusher]: treesize reduction 17, result has 73.0 percent of original size [2021-02-16 17:25:35,024 WARN L147 QuantifierPusher]: treesize reduction 17, result has 73.0 percent of original size 46 [2021-02-16 17:25:35,070 WARN L141 QuantifierPusher]: treesize reduction 53, result has 56.2 percent of original size [2021-02-16 17:25:35,072 WARN L147 QuantifierPusher]: treesize reduction 53, result has 56.2 percent of original size 68 [2021-02-16 17:25:35,143 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:35,144 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:35,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:35,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:35,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:35,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:35,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:35,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:35,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873357884] [2021-02-16 17:25:35,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:35,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-16 17:25:35,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249197165] [2021-02-16 17:25:35,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-16 17:25:35,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:35,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-16 17:25:35,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:25:35,228 INFO L87 Difference]: Start difference. First operand 4123 states and 13228 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:36,170 INFO L93 Difference]: Finished difference Result 6750 states and 21527 transitions. [2021-02-16 17:25:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-16 17:25:36,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:36,180 INFO L225 Difference]: With dead ends: 6750 [2021-02-16 17:25:36,181 INFO L226 Difference]: Without dead ends: 4518 [2021-02-16 17:25:36,181 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2021-02-16 17:25:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2021-02-16 17:25:36,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3867. [2021-02-16 17:25:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3867 states, 3866 states have (on average 3.192188308329022) internal successors, (12341), 3866 states have internal predecessors, (12341), 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) [2021-02-16 17:25:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 12341 transitions. [2021-02-16 17:25:36,302 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 12341 transitions. Word has length 65 [2021-02-16 17:25:36,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:36,302 INFO L480 AbstractCegarLoop]: Abstraction has 3867 states and 12341 transitions. [2021-02-16 17:25:36,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 12341 transitions. [2021-02-16 17:25:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:36,311 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:36,311 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:36,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-16 17:25:36,312 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:36,312 INFO L82 PathProgramCache]: Analyzing trace with hash -341817256, now seen corresponding path program 3 times [2021-02-16 17:25:36,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:36,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813447442] [2021-02-16 17:25:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:36,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:36,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:36,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:36,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:36,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:36,465 WARN L141 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-02-16 17:25:36,466 WARN L147 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size 37 [2021-02-16 17:25:36,495 WARN L141 QuantifierPusher]: treesize reduction 18, result has 80.6 percent of original size [2021-02-16 17:25:36,498 WARN L147 QuantifierPusher]: treesize reduction 18, result has 80.6 percent of original size 75 [2021-02-16 17:25:36,562 WARN L141 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size [2021-02-16 17:25:36,563 WARN L147 QuantifierPusher]: treesize reduction 18, result has 79.3 percent of original size 69 [2021-02-16 17:25:36,626 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:36,627 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:36,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:36,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:36,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:36,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:36,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813447442] [2021-02-16 17:25:36,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:36,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-16 17:25:36,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017346066] [2021-02-16 17:25:36,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-16 17:25:36,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:36,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-16 17:25:36,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-02-16 17:25:36,730 INFO L87 Difference]: Start difference. First operand 3867 states and 12341 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:37,370 INFO L93 Difference]: Finished difference Result 4459 states and 14186 transitions. [2021-02-16 17:25:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:25:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:37,381 INFO L225 Difference]: With dead ends: 4459 [2021-02-16 17:25:37,381 INFO L226 Difference]: Without dead ends: 3979 [2021-02-16 17:25:37,384 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-02-16 17:25:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2021-02-16 17:25:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3812. [2021-02-16 17:25:37,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3812 states, 3811 states have (on average 3.1886643925478877) internal successors, (12152), 3811 states have internal predecessors, (12152), 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) [2021-02-16 17:25:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 12152 transitions. [2021-02-16 17:25:37,479 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 12152 transitions. Word has length 65 [2021-02-16 17:25:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:37,480 INFO L480 AbstractCegarLoop]: Abstraction has 3812 states and 12152 transitions. [2021-02-16 17:25:37,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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) [2021-02-16 17:25:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 12152 transitions. [2021-02-16 17:25:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-16 17:25:37,488 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:37,488 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:37,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-16 17:25:37,488 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:37,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1345615081, now seen corresponding path program 1 times [2021-02-16 17:25:37,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:37,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678477093] [2021-02-16 17:25:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:37,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:37,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:37,578 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:25:37,578 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:25:37,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:37,612 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:25:37,613 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:25:37,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:37,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678477093] [2021-02-16 17:25:37,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:37,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:25:37,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333899754] [2021-02-16 17:25:37,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:25:37,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:37,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:25:37,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:25:37,635 INFO L87 Difference]: Start difference. First operand 3812 states and 12152 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-02-16 17:25:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:37,792 INFO L93 Difference]: Finished difference Result 4720 states and 14796 transitions. [2021-02-16 17:25:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:25:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-02-16 17:25:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:37,800 INFO L225 Difference]: With dead ends: 4720 [2021-02-16 17:25:37,800 INFO L226 Difference]: Without dead ends: 3392 [2021-02-16 17:25:37,801 INFO L761 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 [2021-02-16 17:25:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2021-02-16 17:25:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3392. [2021-02-16 17:25:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3391 states have (on average 3.143025656148629) internal successors, (10658), 3391 states have internal predecessors, (10658), 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) [2021-02-16 17:25:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 10658 transitions. [2021-02-16 17:25:37,866 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 10658 transitions. Word has length 65 [2021-02-16 17:25:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:37,866 INFO L480 AbstractCegarLoop]: Abstraction has 3392 states and 10658 transitions. [2021-02-16 17:25:37,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2021-02-16 17:25:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 10658 transitions. [2021-02-16 17:25:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-16 17:25:37,872 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:37,873 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:37,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-16 17:25:37,873 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:37,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:37,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1433237926, now seen corresponding path program 1 times [2021-02-16 17:25:37,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:37,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982337919] [2021-02-16 17:25:37,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:37,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:37,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:37,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:37,979 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:25:37,979 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:25:37,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:37,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:38,008 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:25:38,009 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:25:38,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:38,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:38,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982337919] [2021-02-16 17:25:38,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:38,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:25:38,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093414545] [2021-02-16 17:25:38,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:25:38,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:38,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:25:38,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:25:38,028 INFO L87 Difference]: Start difference. First operand 3392 states and 10658 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-02-16 17:25:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:38,195 INFO L93 Difference]: Finished difference Result 3446 states and 10472 transitions. [2021-02-16 17:25:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:25:38,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-02-16 17:25:38,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:38,199 INFO L225 Difference]: With dead ends: 3446 [2021-02-16 17:25:38,200 INFO L226 Difference]: Without dead ends: 2366 [2021-02-16 17:25:38,200 INFO L761 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 [2021-02-16 17:25:38,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-02-16 17:25:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-02-16 17:25:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2365 states have (on average 2.991966173361522) internal successors, (7076), 2365 states have internal predecessors, (7076), 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) [2021-02-16 17:25:38,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 7076 transitions. [2021-02-16 17:25:38,236 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 7076 transitions. Word has length 66 [2021-02-16 17:25:38,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:38,236 INFO L480 AbstractCegarLoop]: Abstraction has 2366 states and 7076 transitions. [2021-02-16 17:25:38,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-02-16 17:25:38,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 7076 transitions. [2021-02-16 17:25:38,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-16 17:25:38,246 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:38,246 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:38,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-16 17:25:38,246 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:38,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1999288178, now seen corresponding path program 1 times [2021-02-16 17:25:38,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:38,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849474182] [2021-02-16 17:25:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:38,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:38,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:38,376 WARN L141 QuantifierPusher]: treesize reduction 12, result has 20.0 percent of original size [2021-02-16 17:25:38,377 WARN L147 QuantifierPusher]: treesize reduction 12, result has 20.0 percent of original size 3 [2021-02-16 17:25:38,380 WARN L141 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-02-16 17:25:38,381 WARN L147 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size 7 [2021-02-16 17:25:38,388 WARN L141 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size [2021-02-16 17:25:38,388 WARN L147 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size 10 [2021-02-16 17:25:38,399 WARN L141 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-02-16 17:25:38,399 WARN L147 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size 13 [2021-02-16 17:25:38,412 WARN L141 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-02-16 17:25:38,413 WARN L147 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size 24 [2021-02-16 17:25:38,441 WARN L141 QuantifierPusher]: treesize reduction 13, result has 83.5 percent of original size [2021-02-16 17:25:38,442 WARN L147 QuantifierPusher]: treesize reduction 13, result has 83.5 percent of original size 66 [2021-02-16 17:25:38,488 WARN L141 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-02-16 17:25:38,490 WARN L147 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size 63 [2021-02-16 17:25:38,529 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-16 17:25:38,530 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-16 17:25:38,553 WARN L141 QuantifierPusher]: treesize reduction 30, result has 59.5 percent of original size [2021-02-16 17:25:38,554 WARN L147 QuantifierPusher]: treesize reduction 30, result has 59.5 percent of original size 44 [2021-02-16 17:25:38,588 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:38,589 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:38,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:38,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:38,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:38,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:38,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:38,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:38,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849474182] [2021-02-16 17:25:38,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:38,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-16 17:25:38,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043206232] [2021-02-16 17:25:38,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-16 17:25:38,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:38,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-16 17:25:38,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:25:38,658 INFO L87 Difference]: Start difference. First operand 2366 states and 7076 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:39,085 INFO L93 Difference]: Finished difference Result 2686 states and 7946 transitions. [2021-02-16 17:25:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:39,086 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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 68 [2021-02-16 17:25:39,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:39,090 INFO L225 Difference]: With dead ends: 2686 [2021-02-16 17:25:39,090 INFO L226 Difference]: Without dead ends: 2366 [2021-02-16 17:25:39,090 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2021-02-16 17:25:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-02-16 17:25:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-02-16 17:25:39,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2365 states have (on average 2.991120507399577) internal successors, (7074), 2365 states have internal predecessors, (7074), 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) [2021-02-16 17:25:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 7074 transitions. [2021-02-16 17:25:39,139 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 7074 transitions. Word has length 68 [2021-02-16 17:25:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:39,139 INFO L480 AbstractCegarLoop]: Abstraction has 2366 states and 7074 transitions. [2021-02-16 17:25:39,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 7074 transitions. [2021-02-16 17:25:39,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-16 17:25:39,143 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:39,143 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:39,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-16 17:25:39,143 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:39,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:39,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1649490768, now seen corresponding path program 2 times [2021-02-16 17:25:39,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:39,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925397040] [2021-02-16 17:25:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:39,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:39,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:39,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:39,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-16 17:25:39,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-16 17:25:39,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-16 17:25:39,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 17:25:39,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 17:25:39,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-16 17:25:39,389 WARN L141 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-02-16 17:25:39,390 WARN L147 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size 65 [2021-02-16 17:25:39,434 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:39,436 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:39,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:39,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:39,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:39,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:39,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925397040] [2021-02-16 17:25:39,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:39,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-16 17:25:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220487742] [2021-02-16 17:25:39,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-16 17:25:39,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:39,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-16 17:25:39,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:25:39,545 INFO L87 Difference]: Start difference. First operand 2366 states and 7074 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:40,035 INFO L93 Difference]: Finished difference Result 2676 states and 7921 transitions. [2021-02-16 17:25:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-16 17:25:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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 68 [2021-02-16 17:25:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:40,043 INFO L225 Difference]: With dead ends: 2676 [2021-02-16 17:25:40,043 INFO L226 Difference]: Without dead ends: 2346 [2021-02-16 17:25:40,044 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-02-16 17:25:40,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-02-16 17:25:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2346. [2021-02-16 17:25:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 2345 states have (on average 2.9961620469083154) internal successors, (7026), 2345 states have internal predecessors, (7026), 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) [2021-02-16 17:25:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 7026 transitions. [2021-02-16 17:25:40,130 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 7026 transitions. Word has length 68 [2021-02-16 17:25:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:40,131 INFO L480 AbstractCegarLoop]: Abstraction has 2346 states and 7026 transitions. [2021-02-16 17:25:40,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 7026 transitions. [2021-02-16 17:25:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-16 17:25:40,135 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:40,135 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:40,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-16 17:25:40,136 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:40,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:40,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1896709202, now seen corresponding path program 3 times [2021-02-16 17:25:40,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:40,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982481697] [2021-02-16 17:25:40,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:40,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:40,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:40,244 WARN L141 QuantifierPusher]: treesize reduction 12, result has 20.0 percent of original size [2021-02-16 17:25:40,245 WARN L147 QuantifierPusher]: treesize reduction 12, result has 20.0 percent of original size 3 [2021-02-16 17:25:40,249 WARN L141 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-02-16 17:25:40,249 WARN L147 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size 7 [2021-02-16 17:25:40,257 WARN L141 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size [2021-02-16 17:25:40,257 WARN L147 QuantifierPusher]: treesize reduction 11, result has 47.6 percent of original size 10 [2021-02-16 17:25:40,267 WARN L141 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-02-16 17:25:40,268 WARN L147 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size 13 [2021-02-16 17:25:40,282 WARN L141 QuantifierPusher]: treesize reduction 13, result has 81.9 percent of original size [2021-02-16 17:25:40,284 WARN L147 QuantifierPusher]: treesize reduction 13, result has 81.9 percent of original size 59 [2021-02-16 17:25:40,315 WARN L141 QuantifierPusher]: treesize reduction 13, result has 82.7 percent of original size [2021-02-16 17:25:40,316 WARN L147 QuantifierPusher]: treesize reduction 13, result has 82.7 percent of original size 62 [2021-02-16 17:25:40,358 WARN L141 QuantifierPusher]: treesize reduction 13, result has 81.9 percent of original size [2021-02-16 17:25:40,359 WARN L147 QuantifierPusher]: treesize reduction 13, result has 81.9 percent of original size 59 [2021-02-16 17:25:40,393 WARN L141 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-02-16 17:25:40,394 WARN L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-02-16 17:25:40,417 WARN L141 QuantifierPusher]: treesize reduction 30, result has 58.9 percent of original size [2021-02-16 17:25:40,419 WARN L147 QuantifierPusher]: treesize reduction 30, result has 58.9 percent of original size 43 [2021-02-16 17:25:40,453 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:25:40,454 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:25:40,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:40,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:40,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:40,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:25:40,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:40,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:40,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982481697] [2021-02-16 17:25:40,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:40,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-16 17:25:40,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436064841] [2021-02-16 17:25:40,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-16 17:25:40,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:40,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-16 17:25:40,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-02-16 17:25:40,526 INFO L87 Difference]: Start difference. First operand 2346 states and 7026 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:40,984 INFO L93 Difference]: Finished difference Result 3392 states and 10177 transitions. [2021-02-16 17:25:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-16 17:25:40,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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 68 [2021-02-16 17:25:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:40,990 INFO L225 Difference]: With dead ends: 3392 [2021-02-16 17:25:40,990 INFO L226 Difference]: Without dead ends: 2194 [2021-02-16 17:25:40,990 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-02-16 17:25:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-02-16 17:25:41,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 1830. [2021-02-16 17:25:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1829 states have (on average 2.989611809732094) internal successors, (5468), 1829 states have internal predecessors, (5468), 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) [2021-02-16 17:25:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 5468 transitions. [2021-02-16 17:25:41,035 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 5468 transitions. Word has length 68 [2021-02-16 17:25:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:41,035 INFO L480 AbstractCegarLoop]: Abstraction has 1830 states and 5468 transitions. [2021-02-16 17:25:41,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 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) [2021-02-16 17:25:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 5468 transitions. [2021-02-16 17:25:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-02-16 17:25:41,038 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:41,039 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:41,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-16 17:25:41,039 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:41,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2765265, now seen corresponding path program 1 times [2021-02-16 17:25:41,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:41,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70821691] [2021-02-16 17:25:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:25:41,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:41,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:41,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:41,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:25:41,122 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:25:41,124 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:25:41,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:25:41,152 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:25:41,153 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:25:41,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:25:41,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:25:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:25:41,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70821691] [2021-02-16 17:25:41,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:25:41,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:25:41,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83122537] [2021-02-16 17:25:41,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:25:41,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:25:41,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:25:41,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:25:41,173 INFO L87 Difference]: Start difference. First operand 1830 states and 5468 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-02-16 17:25:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:25:41,352 INFO L93 Difference]: Finished difference Result 1452 states and 4163 transitions. [2021-02-16 17:25:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:25:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 68 [2021-02-16 17:25:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:25:41,354 INFO L225 Difference]: With dead ends: 1452 [2021-02-16 17:25:41,354 INFO L226 Difference]: Without dead ends: 740 [2021-02-16 17:25:41,355 INFO L761 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 [2021-02-16 17:25:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-02-16 17:25:41,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2021-02-16 17:25:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 2.7307171853856564) internal successors, (2018), 739 states have internal predecessors, (2018), 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) [2021-02-16 17:25:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 2018 transitions. [2021-02-16 17:25:41,372 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 2018 transitions. Word has length 68 [2021-02-16 17:25:41,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:25:41,373 INFO L480 AbstractCegarLoop]: Abstraction has 740 states and 2018 transitions. [2021-02-16 17:25:41,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2021-02-16 17:25:41,373 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 2018 transitions. [2021-02-16 17:25:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-16 17:25:41,375 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:25:41,375 INFO L505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:25:41,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-16 17:25:41,375 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:25:41,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:25:41,376 INFO L82 PathProgramCache]: Analyzing trace with hash -421554612, now seen corresponding path program 1 times [2021-02-16 17:25:41,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:25:41,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688137962] [2021-02-16 17:25:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:25:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 17:25:41,430 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 17:25:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 17:25:41,516 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 17:25:41,592 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-16 17:25:41,592 INFO L606 BasicCegarLoop]: Counterexample might be feasible [2021-02-16 17:25:41,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-16 17:25:41,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:25:41 BasicIcfg [2021-02-16 17:25:41,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:25:41,809 INFO L168 Benchmark]: Toolchain (without parser) took 31222.91 ms. Allocated memory was 302.0 MB in the beginning and 4.0 GB in the end (delta: 3.7 GB). Free memory was 276.8 MB in the beginning and 3.4 GB in the end (delta: -3.2 GB). Peak memory consumption was 510.9 MB. Max. memory is 16.0 GB. [2021-02-16 17:25:41,809 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:25:41,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.44 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 281.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.0 GB. [2021-02-16 17:25:41,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.56 ms. Allocated memory is still 302.0 MB. Free memory was 281.7 MB in the beginning and 279.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:25:41,810 INFO L168 Benchmark]: Boogie Preprocessor took 46.30 ms. Allocated memory is still 302.0 MB. Free memory was 279.6 MB in the beginning and 276.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:25:41,810 INFO L168 Benchmark]: RCFGBuilder took 2381.82 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.5 MB in the beginning and 281.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 174.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:25:41,813 INFO L168 Benchmark]: TraceAbstraction took 27810.55 ms. Allocated memory was 362.8 MB in the beginning and 4.0 GB in the end (delta: 3.6 GB). Free memory was 281.7 MB in the beginning and 3.4 GB in the end (delta: -3.2 GB). Peak memory consumption was 452.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:25:41,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 865.44 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 281.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 93.56 ms. Allocated memory is still 302.0 MB. Free memory was 281.7 MB in the beginning and 279.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 46.30 ms. Allocated memory is still 302.0 MB. Free memory was 279.6 MB in the beginning and 276.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2381.82 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 276.5 MB in the beginning and 281.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 174.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27810.55 ms. Allocated memory was 362.8 MB in the beginning and 4.0 GB in the end (delta: 3.6 GB). Free memory was 281.7 MB in the beginning and 3.4 GB in the end (delta: -3.2 GB). Peak memory consumption was 452.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L717] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L718] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L719] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L720] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L721] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L722] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L723] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L727] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L728] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L729] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L730] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L731] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L732] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L733] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L813] 0 pthread_t t2192; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L814] FCALL, FORK 0 pthread_create(&t2192, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2193; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L816] FCALL, FORK 0 pthread_create(&t2193, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2194; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L818] FCALL, FORK 0 pthread_create(&t2194, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L788] 3 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.4s, OverallIterations: 26, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 2976 SDtfs, 5452 SDslu, 12637 SDs, 0 SdLazy, 2275 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1002 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13428occurred 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: 4.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 4064 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 1645 NumberOfCodeBlocks, 1645 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1549 ConstructedInterpolants, 0 QuantifiedInterpolants, 647235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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 incorrect! Received shutdown request...