/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:12:14,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:12:14,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:12:14,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 11:12:14,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:12:14,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:12:14,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:12:14,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:12:14,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:12:14,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:12:14,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:12:14,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:12:14,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:12:14,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:12:14,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:12:14,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:12:14,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 11:12:14,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:12:14,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:12:14,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:12:14,277 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-Separate.epf [2021-06-05 11:12:14,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:12:14,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:12:14,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:12:14,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:12:14,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:12:14,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:12:14,309 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:12:14,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:12:14,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:12:14,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:12:14,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:12:14,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:12:14,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:12:14,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:12:14,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:12:14,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:12:14,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:12:14,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:12:14,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:12:14,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:12:14,313 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:12:14,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:12:14,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:12:14,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:12:14,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:12:14,607 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:12:14,608 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:12:14,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-06-05 11:12:14,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170016ed/d93706c8999d4cbe855d41a2510bdeef/FLAG8db3d2e09 [2021-06-05 11:12:15,131 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:12:15,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-06-05 11:12:15,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170016ed/d93706c8999d4cbe855d41a2510bdeef/FLAG8db3d2e09 [2021-06-05 11:12:15,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170016ed/d93706c8999d4cbe855d41a2510bdeef [2021-06-05 11:12:15,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:12:15,170 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:12:15,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:12:15,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:12:15,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:12:15,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c40dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15, skipping insertion in model container [2021-06-05 11:12:15,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:12:15,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:12:15,511 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-06-05 11:12:15,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:12:15,541 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:12:15,580 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-06-05 11:12:15,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:12:15,649 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:12:15,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15 WrapperNode [2021-06-05 11:12:15,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:12:15,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:12:15,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:12:15,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:12:15,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:12:15,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:12:15,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:12:15,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:12:15,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (1/1) ... [2021-06-05 11:12:15,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:12:15,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:12:15,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:12:15,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:12:15,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (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 [2021-06-05 11:12:15,775 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-05 11:12:15,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-05 11:12:15,776 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-05 11:12:15,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-05 11:12:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:12:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:12:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:12:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:12:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:12:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:12:15,779 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 11:12:16,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:12:16,133 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-06-05 11:12:16,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:12:16 BoogieIcfgContainer [2021-06-05 11:12:16,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:12:16,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:12:16,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:12:16,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:12:16,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:12:15" (1/3) ... [2021-06-05 11:12:16,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4039fe83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:12:16, skipping insertion in model container [2021-06-05 11:12:16,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:12:15" (2/3) ... [2021-06-05 11:12:16,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4039fe83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:12:16, skipping insertion in model container [2021-06-05 11:12:16,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:12:16" (3/3) ... [2021-06-05 11:12:16,140 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2021-06-05 11:12:16,145 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:12:16,145 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:12:16,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 11:12:16,146 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:12:16,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,167 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,167 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,169 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,174 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,175 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,178 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,179 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,179 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:16,181 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 11:12:16,199 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 11:12:16,215 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:12:16,215 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:12:16,216 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:12:16,216 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:12:16,216 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:12:16,216 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:12:16,216 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:12:16,216 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:12:16,224 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions, 148 flow [2021-06-05 11:12:16,283 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 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) [2021-06-05 11:12:16,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 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) [2021-06-05 11:12:16,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 11:12:16,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:16,310 INFO L521 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] [2021-06-05 11:12:16,311 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:16,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2101000019, now seen corresponding path program 1 times [2021-06-05 11:12:16,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:16,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113517490] [2021-06-05 11:12:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:16,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:16,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113517490] [2021-06-05 11:12:16,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113517490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:16,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:16,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 11:12:16,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064923625] [2021-06-05 11:12:16,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 11:12:16,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:16,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 11:12:16,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:12:16,768 INFO L87 Difference]: Start difference. First operand has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:17,029 INFO L93 Difference]: Finished difference Result 1205 states and 2955 transitions. [2021-06-05 11:12:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 11:12:17,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 11:12:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:17,049 INFO L225 Difference]: With dead ends: 1205 [2021-06-05 11:12:17,049 INFO L226 Difference]: Without dead ends: 462 [2021-06-05 11:12:17,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 179.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:12:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-06-05 11:12:17,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2021-06-05 11:12:17,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 460 states have (on average 2.2543478260869567) internal successors, (1037), 461 states have internal predecessors, (1037), 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) [2021-06-05 11:12:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1037 transitions. [2021-06-05 11:12:17,133 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1037 transitions. Word has length 34 [2021-06-05 11:12:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:17,134 INFO L482 AbstractCegarLoop]: Abstraction has 462 states and 1037 transitions. [2021-06-05 11:12:17,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1037 transitions. [2021-06-05 11:12:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 11:12:17,136 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:17,136 INFO L521 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] [2021-06-05 11:12:17,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:12:17,136 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:17,137 INFO L82 PathProgramCache]: Analyzing trace with hash 317679082, now seen corresponding path program 1 times [2021-06-05 11:12:17,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:17,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355788394] [2021-06-05 11:12:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:17,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:17,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355788394] [2021-06-05 11:12:17,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355788394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:17,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:17,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 11:12:17,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855709690] [2021-06-05 11:12:17,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:17,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:17,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:17,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 11:12:17,416 INFO L87 Difference]: Start difference. First operand 462 states and 1037 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:17,612 INFO L93 Difference]: Finished difference Result 386 states and 851 transitions. [2021-06-05 11:12:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 11:12:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-05 11:12:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:17,613 INFO L225 Difference]: With dead ends: 386 [2021-06-05 11:12:17,613 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:12:17,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 195.7ms TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-06-05 11:12:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:12:17,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:12:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:12:17,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-06-05 11:12:17,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:17,615 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:12:17,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:12:17,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:12:17,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:12:17,616 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:12:17,618 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 11:12:17,619 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:12:17,619 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:12:17,619 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:12:17,620 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:12:17,620 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:12:17,620 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:12:17,620 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:12:17,620 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:12:17,622 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions, 148 flow [2021-06-05 11:12:17,653 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 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) [2021-06-05 11:12:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 1329 states, 1323 states have (on average 2.7135298563869994) internal successors, (3590), 1328 states have internal predecessors, (3590), 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) [2021-06-05 11:12:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 11:12:17,659 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:17,660 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:17,686 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:12:17,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:17,687 INFO L82 PathProgramCache]: Analyzing trace with hash -821612, now seen corresponding path program 1 times [2021-06-05 11:12:17,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:17,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16180073] [2021-06-05 11:12:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:12:17,704 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:12:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:12:17,716 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:12:17,736 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:12:17,736 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:12:17,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 11:12:17,737 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:12:17,737 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:12:17,737 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 11:12:17,746 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,748 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,749 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,752 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,755 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,755 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,755 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,755 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,755 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,756 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,757 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,757 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,757 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,757 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,757 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,758 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,758 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,758 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,759 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,759 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,759 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,760 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:17,761 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 11:12:17,762 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 11:12:17,762 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:12:17,763 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:12:17,763 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:12:17,763 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:12:17,763 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:12:17,763 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:12:17,763 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:12:17,763 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:12:17,765 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 86 transitions, 196 flow [2021-06-05 11:12:18,086 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 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) [2021-06-05 11:12:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 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) [2021-06-05 11:12:18,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 11:12:18,109 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:18,109 INFO L521 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] [2021-06-05 11:12:18,110 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:18,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:18,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1924836355, now seen corresponding path program 1 times [2021-06-05 11:12:18,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:18,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391329631] [2021-06-05 11:12:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:18,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:18,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391329631] [2021-06-05 11:12:18,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391329631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:18,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:18,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 11:12:18,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250682999] [2021-06-05 11:12:18,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 11:12:18,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:18,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 11:12:18,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:12:18,253 INFO L87 Difference]: Start difference. First operand has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:18,492 INFO L93 Difference]: Finished difference Result 8597 states and 28009 transitions. [2021-06-05 11:12:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 11:12:18,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 11:12:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:18,517 INFO L225 Difference]: With dead ends: 8597 [2021-06-05 11:12:18,518 INFO L226 Difference]: Without dead ends: 3708 [2021-06-05 11:12:18,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 115.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:12:18,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2021-06-05 11:12:18,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 3708. [2021-06-05 11:12:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3708 states, 3705 states have (on average 3.1379217273954114) internal successors, (11626), 3707 states have internal predecessors, (11626), 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) [2021-06-05 11:12:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 11626 transitions. [2021-06-05 11:12:18,722 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 11626 transitions. Word has length 34 [2021-06-05 11:12:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:18,722 INFO L482 AbstractCegarLoop]: Abstraction has 3708 states and 11626 transitions. [2021-06-05 11:12:18,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 11626 transitions. [2021-06-05 11:12:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 11:12:18,724 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:18,724 INFO L521 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] [2021-06-05 11:12:18,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 11:12:18,725 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:18,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1857372259, now seen corresponding path program 1 times [2021-06-05 11:12:18,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:18,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106999781] [2021-06-05 11:12:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:18,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:18,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106999781] [2021-06-05 11:12:18,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106999781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:18,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:18,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 11:12:18,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099195425] [2021-06-05 11:12:18,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:18,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:18,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:18,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 11:12:18,941 INFO L87 Difference]: Start difference. First operand 3708 states and 11626 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:19,202 INFO L93 Difference]: Finished difference Result 5118 states and 15453 transitions. [2021-06-05 11:12:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 11:12:19,204 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-05 11:12:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:19,222 INFO L225 Difference]: With dead ends: 5118 [2021-06-05 11:12:19,222 INFO L226 Difference]: Without dead ends: 3850 [2021-06-05 11:12:19,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-06-05 11:12:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2021-06-05 11:12:19,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 2748. [2021-06-05 11:12:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2746 states have (on average 3.1019664967225054) internal successors, (8518), 2747 states have internal predecessors, (8518), 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) [2021-06-05 11:12:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 8518 transitions. [2021-06-05 11:12:19,304 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 8518 transitions. Word has length 46 [2021-06-05 11:12:19,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:19,304 INFO L482 AbstractCegarLoop]: Abstraction has 2748 states and 8518 transitions. [2021-06-05 11:12:19,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 8518 transitions. [2021-06-05 11:12:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 11:12:19,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:19,307 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:19,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:12:19,307 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:19,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:19,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1479235996, now seen corresponding path program 1 times [2021-06-05 11:12:19,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:19,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334148328] [2021-06-05 11:12:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:19,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:19,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334148328] [2021-06-05 11:12:19,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334148328] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:19,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586544659] [2021-06-05 11:12:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:19,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 11:12:19,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:19,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586544659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:19,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:19,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 11:12:19,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962198725] [2021-06-05 11:12:19,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 11:12:19,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:19,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 11:12:19,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 11:12:19,930 INFO L87 Difference]: Start difference. First operand 2748 states and 8518 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:12:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:20,302 INFO L93 Difference]: Finished difference Result 3660 states and 10826 transitions. [2021-06-05 11:12:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 11:12:20,302 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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 56 [2021-06-05 11:12:20,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:20,314 INFO L225 Difference]: With dead ends: 3660 [2021-06-05 11:12:20,314 INFO L226 Difference]: Without dead ends: 2406 [2021-06-05 11:12:20,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 330.3ms TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 11:12:20,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2021-06-05 11:12:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 1874. [2021-06-05 11:12:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1872 states have (on average 2.940705128205128) internal successors, (5505), 1873 states have internal predecessors, (5505), 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) [2021-06-05 11:12:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 5505 transitions. [2021-06-05 11:12:20,378 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 5505 transitions. Word has length 56 [2021-06-05 11:12:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:20,380 INFO L482 AbstractCegarLoop]: Abstraction has 1874 states and 5505 transitions. [2021-06-05 11:12:20,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:12:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 5505 transitions. [2021-06-05 11:12:20,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:12:20,383 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:20,384 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:20,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-05 11:12:20,602 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash 298451390, now seen corresponding path program 1 times [2021-06-05 11:12:20,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:20,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707598450] [2021-06-05 11:12:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:20,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:20,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707598450] [2021-06-05 11:12:20,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707598450] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:20,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140597976] [2021-06-05 11:12:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:20,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:20,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:21,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140597976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:21,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:21,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2021-06-05 11:12:21,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052287675] [2021-06-05 11:12:21,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:12:21,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:21,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:12:21,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:12:21,354 INFO L87 Difference]: Start difference. First operand 1874 states and 5505 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 11:12:22,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:22,320 INFO L93 Difference]: Finished difference Result 2478 states and 7161 transitions. [2021-06-05 11:12:22,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 11:12:22,321 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 60 [2021-06-05 11:12:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:22,329 INFO L225 Difference]: With dead ends: 2478 [2021-06-05 11:12:22,330 INFO L226 Difference]: Without dead ends: 1620 [2021-06-05 11:12:22,330 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 991.7ms TimeCoverageRelationStatistics Valid=430, Invalid=1826, Unknown=0, NotChecked=0, Total=2256 [2021-06-05 11:12:22,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2021-06-05 11:12:22,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1396. [2021-06-05 11:12:22,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1394 states have (on average 2.8622668579626973) internal successors, (3990), 1395 states have internal predecessors, (3990), 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) [2021-06-05 11:12:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 3990 transitions. [2021-06-05 11:12:22,371 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 3990 transitions. Word has length 60 [2021-06-05 11:12:22,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:22,371 INFO L482 AbstractCegarLoop]: Abstraction has 1396 states and 3990 transitions. [2021-06-05 11:12:22,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 11:12:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 3990 transitions. [2021-06-05 11:12:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:12:22,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:22,374 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:22,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:22,597 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:22,597 INFO L82 PathProgramCache]: Analyzing trace with hash -437778756, now seen corresponding path program 2 times [2021-06-05 11:12:22,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:22,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575109582] [2021-06-05 11:12:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:22,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:22,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575109582] [2021-06-05 11:12:22,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575109582] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:22,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73237077] [2021-06-05 11:12:22,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:22,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:12:22,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:22,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:22,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 11:12:23,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73237077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:23,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:12:23,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 11:12:23,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994876245] [2021-06-05 11:12:23,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:23,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:23,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:23,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:12:23,275 INFO L87 Difference]: Start difference. First operand 1396 states and 3990 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:12:23,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:23,508 INFO L93 Difference]: Finished difference Result 1244 states and 3542 transitions. [2021-06-05 11:12:23,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 11:12:23,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-06-05 11:12:23,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:23,509 INFO L225 Difference]: With dead ends: 1244 [2021-06-05 11:12:23,509 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:12:23,509 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 443.7ms TimeCoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:12:23,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:12:23,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:12:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:12:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:12:23,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-05 11:12:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:23,510 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:12:23,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:12:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:12:23,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:12:23,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 11:12:23,711 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:12:23,711 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 11:12:23,712 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:12:23,712 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:12:23,712 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:12:23,712 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:12:23,712 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:12:23,712 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:12:23,712 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:12:23,712 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:12:23,714 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 86 transitions, 196 flow [2021-06-05 11:12:24,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 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) [2021-06-05 11:12:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 8109 states, 8101 states have (on average 3.525490680162943) internal successors, (28560), 8108 states have internal predecessors, (28560), 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) [2021-06-05 11:12:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 11:12:24,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:24,080 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:24,080 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:12:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251235, now seen corresponding path program 1 times [2021-06-05 11:12:24,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:24,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8882602] [2021-06-05 11:12:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:12:24,138 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:12:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:12:24,155 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:12:24,170 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:12:24,170 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:12:24,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 11:12:24,171 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:12:24,171 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:12:24,171 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 11:12:24,185 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,185 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,185 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,186 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,187 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,187 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,187 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,192 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:12:24,205 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 11:12:24,205 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 11:12:24,206 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:12:24,206 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:12:24,206 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:12:24,206 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:12:24,206 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:12:24,206 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:12:24,206 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:12:24,206 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:12:24,212 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 103 transitions, 248 flow [2021-06-05 11:12:29,396 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 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) [2021-06-05 11:12:29,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 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) [2021-06-05 11:12:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 11:12:29,481 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:29,481 INFO L521 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] [2021-06-05 11:12:29,481 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:29,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2020120723, now seen corresponding path program 1 times [2021-06-05 11:12:29,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:29,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137485893] [2021-06-05 11:12:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:29,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:29,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137485893] [2021-06-05 11:12:29,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137485893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:29,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:29,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 11:12:29,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631048976] [2021-06-05 11:12:29,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 11:12:29,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:29,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 11:12:29,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:12:29,627 INFO L87 Difference]: Start difference. First operand has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:29,798 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2021-06-05 11:12:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:30,362 INFO L93 Difference]: Finished difference Result 57149 states and 233481 transitions. [2021-06-05 11:12:30,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 11:12:30,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 11:12:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:30,520 INFO L225 Difference]: With dead ends: 57149 [2021-06-05 11:12:30,520 INFO L226 Difference]: Without dead ends: 26184 [2021-06-05 11:12:30,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 218.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:12:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26184 states. [2021-06-05 11:12:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26184 to 26184. [2021-06-05 11:12:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26184 states, 26180 states have (on average 4.003437738731856) internal successors, (104810), 26183 states have internal predecessors, (104810), 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) [2021-06-05 11:12:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26184 states to 26184 states and 104810 transitions. [2021-06-05 11:12:32,002 INFO L78 Accepts]: Start accepts. Automaton has 26184 states and 104810 transitions. Word has length 34 [2021-06-05 11:12:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:32,002 INFO L482 AbstractCegarLoop]: Abstraction has 26184 states and 104810 transitions. [2021-06-05 11:12:32,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:12:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 26184 states and 104810 transitions. [2021-06-05 11:12:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 11:12:32,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:32,003 INFO L521 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] [2021-06-05 11:12:32,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 11:12:32,003 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:32,004 INFO L82 PathProgramCache]: Analyzing trace with hash 317983230, now seen corresponding path program 1 times [2021-06-05 11:12:32,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:32,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85884377] [2021-06-05 11:12:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:32,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:32,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85884377] [2021-06-05 11:12:32,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85884377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:32,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:32,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 11:12:32,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450060923] [2021-06-05 11:12:32,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:32,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:32,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:32,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 11:12:32,206 INFO L87 Difference]: Start difference. First operand 26184 states and 104810 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:32,785 INFO L93 Difference]: Finished difference Result 44160 states and 169716 transitions. [2021-06-05 11:12:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 11:12:32,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-05 11:12:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:32,913 INFO L225 Difference]: With dead ends: 44160 [2021-06-05 11:12:32,913 INFO L226 Difference]: Without dead ends: 36340 [2021-06-05 11:12:32,914 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-06-05 11:12:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36340 states. [2021-06-05 11:12:33,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36340 to 24276. [2021-06-05 11:12:33,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24276 states, 24273 states have (on average 3.949244015984839) internal successors, (95860), 24275 states have internal predecessors, (95860), 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) [2021-06-05 11:12:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24276 states to 24276 states and 95860 transitions. [2021-06-05 11:12:33,905 INFO L78 Accepts]: Start accepts. Automaton has 24276 states and 95860 transitions. Word has length 46 [2021-06-05 11:12:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:33,905 INFO L482 AbstractCegarLoop]: Abstraction has 24276 states and 95860 transitions. [2021-06-05 11:12:33,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:12:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 24276 states and 95860 transitions. [2021-06-05 11:12:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 11:12:33,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:33,908 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:33,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 11:12:33,908 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1522783278, now seen corresponding path program 1 times [2021-06-05 11:12:33,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:33,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959783092] [2021-06-05 11:12:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:34,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:34,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959783092] [2021-06-05 11:12:34,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959783092] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:34,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805142200] [2021-06-05 11:12:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:34,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 11:12:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:34,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805142200] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:34,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:34,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 11:12:34,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579550446] [2021-06-05 11:12:34,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 11:12:34,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:34,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 11:12:34,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 11:12:34,316 INFO L87 Difference]: Start difference. First operand 24276 states and 95860 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:12:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:35,023 INFO L93 Difference]: Finished difference Result 40036 states and 151990 transitions. [2021-06-05 11:12:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 11:12:35,023 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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 56 [2021-06-05 11:12:35,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:35,127 INFO L225 Difference]: With dead ends: 40036 [2021-06-05 11:12:35,128 INFO L226 Difference]: Without dead ends: 32036 [2021-06-05 11:12:35,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 282.6ms TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 11:12:35,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32036 states. [2021-06-05 11:12:35,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32036 to 21952. [2021-06-05 11:12:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21952 states, 21949 states have (on average 3.867237687366167) internal successors, (84882), 21951 states have internal predecessors, (84882), 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) [2021-06-05 11:12:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21952 states to 21952 states and 84882 transitions. [2021-06-05 11:12:36,126 INFO L78 Accepts]: Start accepts. Automaton has 21952 states and 84882 transitions. Word has length 56 [2021-06-05 11:12:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:36,126 INFO L482 AbstractCegarLoop]: Abstraction has 21952 states and 84882 transitions. [2021-06-05 11:12:36,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:12:36,126 INFO L276 IsEmpty]: Start isEmpty. Operand 21952 states and 84882 transitions. [2021-06-05 11:12:36,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:12:36,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:36,130 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:36,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 11:12:36,339 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:36,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1933156652, now seen corresponding path program 1 times [2021-06-05 11:12:36,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:36,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648639325] [2021-06-05 11:12:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:36,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:36,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648639325] [2021-06-05 11:12:36,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648639325] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:36,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528610735] [2021-06-05 11:12:36,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:36,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:36,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:36,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528610735] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:36,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:36,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 27 [2021-06-05 11:12:36,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336913626] [2021-06-05 11:12:36,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:12:36,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:12:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:12:36,928 INFO L87 Difference]: Start difference. First operand 21952 states and 84882 transitions. Second operand has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 11:12:37,497 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 20 [2021-06-05 11:12:38,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:38,505 INFO L93 Difference]: Finished difference Result 54310 states and 202431 transitions. [2021-06-05 11:12:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:12:38,506 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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 60 [2021-06-05 11:12:38,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:38,679 INFO L225 Difference]: With dead ends: 54310 [2021-06-05 11:12:38,679 INFO L226 Difference]: Without dead ends: 50926 [2021-06-05 11:12:38,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1209.1ms TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 11:12:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50926 states. [2021-06-05 11:12:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50926 to 20976. [2021-06-05 11:12:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20976 states, 20973 states have (on average 3.8705955275830832) internal successors, (81178), 20975 states have internal predecessors, (81178), 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) [2021-06-05 11:12:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20976 states to 20976 states and 81178 transitions. [2021-06-05 11:12:39,748 INFO L78 Accepts]: Start accepts. Automaton has 20976 states and 81178 transitions. Word has length 60 [2021-06-05 11:12:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:39,749 INFO L482 AbstractCegarLoop]: Abstraction has 20976 states and 81178 transitions. [2021-06-05 11:12:39,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 27 states have internal predecessors, (102), 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) [2021-06-05 11:12:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 20976 states and 81178 transitions. [2021-06-05 11:12:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:12:39,772 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:39,772 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:39,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-05 11:12:39,993 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:39,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1681668076, now seen corresponding path program 2 times [2021-06-05 11:12:39,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:39,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010590126] [2021-06-05 11:12:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:40,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:40,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010590126] [2021-06-05 11:12:40,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010590126] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:40,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036350663] [2021-06-05 11:12:40,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:40,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:12:40,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:40,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:40,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 11:12:40,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036350663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:40,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:12:40,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 11:12:40,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691546633] [2021-06-05 11:12:40,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:40,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:40,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:40,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:12:40,521 INFO L87 Difference]: Start difference. First operand 20976 states and 81178 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:12:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:41,235 INFO L93 Difference]: Finished difference Result 41438 states and 154425 transitions. [2021-06-05 11:12:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:12:41,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-06-05 11:12:41,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:41,332 INFO L225 Difference]: With dead ends: 41438 [2021-06-05 11:12:41,333 INFO L226 Difference]: Without dead ends: 38102 [2021-06-05 11:12:41,333 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 513.3ms TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2021-06-05 11:12:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38102 states. [2021-06-05 11:12:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38102 to 17224. [2021-06-05 11:12:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17224 states, 17222 states have (on average 3.9211473696434793) internal successors, (67530), 17223 states have internal predecessors, (67530), 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) [2021-06-05 11:12:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17224 states to 17224 states and 67530 transitions. [2021-06-05 11:12:41,817 INFO L78 Accepts]: Start accepts. Automaton has 17224 states and 67530 transitions. Word has length 60 [2021-06-05 11:12:41,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:41,817 INFO L482 AbstractCegarLoop]: Abstraction has 17224 states and 67530 transitions. [2021-06-05 11:12:41,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:12:41,817 INFO L276 IsEmpty]: Start isEmpty. Operand 17224 states and 67530 transitions. [2021-06-05 11:12:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 11:12:41,951 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:41,952 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:42,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:42,152 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:42,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:42,153 INFO L82 PathProgramCache]: Analyzing trace with hash -411729027, now seen corresponding path program 1 times [2021-06-05 11:12:42,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:42,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629184828] [2021-06-05 11:12:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:42,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:42,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629184828] [2021-06-05 11:12:42,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629184828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:42,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462369200] [2021-06-05 11:12:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:42,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 11:12:42,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:42,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462369200] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:42,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:42,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-05 11:12:42,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451146572] [2021-06-05 11:12:42,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 11:12:42,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:42,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 11:12:42,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-06-05 11:12:42,587 INFO L87 Difference]: Start difference. First operand 17224 states and 67530 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2021-06-05 11:12:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:43,188 INFO L93 Difference]: Finished difference Result 28776 states and 108418 transitions. [2021-06-05 11:12:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 11:12:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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 [2021-06-05 11:12:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:43,238 INFO L225 Difference]: With dead ends: 28776 [2021-06-05 11:12:43,238 INFO L226 Difference]: Without dead ends: 21366 [2021-06-05 11:12:43,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 323.3ms TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:12:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-06-05 11:12:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 15438. [2021-06-05 11:12:43,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15436 states have (on average 3.759328841668826) internal successors, (58029), 15437 states have internal predecessors, (58029), 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) [2021-06-05 11:12:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 58029 transitions. [2021-06-05 11:12:43,747 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 58029 transitions. Word has length 66 [2021-06-05 11:12:43,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:43,748 INFO L482 AbstractCegarLoop]: Abstraction has 15438 states and 58029 transitions. [2021-06-05 11:12:43,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2021-06-05 11:12:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 58029 transitions. [2021-06-05 11:12:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:12:43,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:43,761 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:43,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-05 11:12:43,966 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:43,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1425691909, now seen corresponding path program 1 times [2021-06-05 11:12:43,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:43,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454905244] [2021-06-05 11:12:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:44,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:44,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:44,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454905244] [2021-06-05 11:12:44,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454905244] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:44,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616037455] [2021-06-05 11:12:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:44,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 11:12:44,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:44,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616037455] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:44,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:44,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 11:12:44,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235686855] [2021-06-05 11:12:44,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:12:44,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:44,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:12:44,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:12:44,465 INFO L87 Difference]: Start difference. First operand 15438 states and 58029 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:12:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:47,074 INFO L93 Difference]: Finished difference Result 40222 states and 143665 transitions. [2021-06-05 11:12:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-05 11:12:47,075 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-06-05 11:12:47,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:47,147 INFO L225 Difference]: With dead ends: 40222 [2021-06-05 11:12:47,147 INFO L226 Difference]: Without dead ends: 33898 [2021-06-05 11:12:47,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3341 ImplicationChecksByTransitivity, 1480.6ms TimeCoverageRelationStatistics Valid=1471, Invalid=9241, Unknown=0, NotChecked=0, Total=10712 [2021-06-05 11:12:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33898 states. [2021-06-05 11:12:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33898 to 15370. [2021-06-05 11:12:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15370 states, 15368 states have (on average 3.741085372201978) internal successors, (57493), 15369 states have internal predecessors, (57493), 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) [2021-06-05 11:12:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15370 states to 15370 states and 57493 transitions. [2021-06-05 11:12:47,566 INFO L78 Accepts]: Start accepts. Automaton has 15370 states and 57493 transitions. Word has length 70 [2021-06-05 11:12:47,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:47,566 INFO L482 AbstractCegarLoop]: Abstraction has 15370 states and 57493 transitions. [2021-06-05 11:12:47,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:12:47,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15370 states and 57493 transitions. [2021-06-05 11:12:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:12:47,577 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:47,577 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:47,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:47,778 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:47,778 INFO L82 PathProgramCache]: Analyzing trace with hash 152480955, now seen corresponding path program 2 times [2021-06-05 11:12:47,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:47,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587440714] [2021-06-05 11:12:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:47,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:47,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587440714] [2021-06-05 11:12:47,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587440714] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:47,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643096195] [2021-06-05 11:12:47,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:47,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:12:47,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:47,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:47,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:12:48,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643096195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:48,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:12:48,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-06-05 11:12:48,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669957797] [2021-06-05 11:12:48,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:48,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:48,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-06-05 11:12:48,434 INFO L87 Difference]: Start difference. First operand 15370 states and 57493 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:12:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:48,890 INFO L93 Difference]: Finished difference Result 26858 states and 96689 transitions. [2021-06-05 11:12:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:12:48,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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 70 [2021-06-05 11:12:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:48,937 INFO L225 Difference]: With dead ends: 26858 [2021-06-05 11:12:48,937 INFO L226 Difference]: Without dead ends: 23172 [2021-06-05 11:12:48,938 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 609.8ms TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:12:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23172 states. [2021-06-05 11:12:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23172 to 11760. [2021-06-05 11:12:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11760 states, 11758 states have (on average 3.7472359244769518) internal successors, (44060), 11759 states have internal predecessors, (44060), 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) [2021-06-05 11:12:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11760 states to 11760 states and 44060 transitions. [2021-06-05 11:12:49,225 INFO L78 Accepts]: Start accepts. Automaton has 11760 states and 44060 transitions. Word has length 70 [2021-06-05 11:12:49,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:49,225 INFO L482 AbstractCegarLoop]: Abstraction has 11760 states and 44060 transitions. [2021-06-05 11:12:49,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:12:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11760 states and 44060 transitions. [2021-06-05 11:12:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:12:49,234 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:49,234 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:49,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:49,449 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:49,449 INFO L82 PathProgramCache]: Analyzing trace with hash -82532737, now seen corresponding path program 1 times [2021-06-05 11:12:49,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:49,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077254819] [2021-06-05 11:12:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:49,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:49,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077254819] [2021-06-05 11:12:49,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077254819] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:49,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656287636] [2021-06-05 11:12:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:49,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 11:12:49,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:50,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656287636] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:50,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:50,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 11:12:50,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833859456] [2021-06-05 11:12:50,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:12:50,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:50,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:12:50,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:12:50,057 INFO L87 Difference]: Start difference. First operand 11760 states and 44060 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:12:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:51,866 INFO L93 Difference]: Finished difference Result 30308 states and 108012 transitions. [2021-06-05 11:12:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-05 11:12:51,867 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-06-05 11:12:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:51,910 INFO L225 Difference]: With dead ends: 30308 [2021-06-05 11:12:51,910 INFO L226 Difference]: Without dead ends: 22576 [2021-06-05 11:12:51,911 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2493 ImplicationChecksByTransitivity, 1203.7ms TimeCoverageRelationStatistics Valid=1170, Invalid=6662, Unknown=0, NotChecked=0, Total=7832 [2021-06-05 11:12:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22576 states. [2021-06-05 11:12:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22576 to 12364. [2021-06-05 11:12:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 12362 states have (on average 3.7155800032357225) internal successors, (45932), 12363 states have internal predecessors, (45932), 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) [2021-06-05 11:12:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 45932 transitions. [2021-06-05 11:12:52,181 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 45932 transitions. Word has length 70 [2021-06-05 11:12:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:52,181 INFO L482 AbstractCegarLoop]: Abstraction has 12364 states and 45932 transitions. [2021-06-05 11:12:52,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:12:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 45932 transitions. [2021-06-05 11:12:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:12:52,192 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:52,193 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:52,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:52,397 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:52,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:52,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1377004195, now seen corresponding path program 2 times [2021-06-05 11:12:52,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:52,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523488132] [2021-06-05 11:12:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:52,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:52,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523488132] [2021-06-05 11:12:52,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523488132] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:52,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407288428] [2021-06-05 11:12:52,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:52,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:12:52,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:52,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:12:52,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:12:52,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407288428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:52,806 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:12:52,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-06-05 11:12:52,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563117166] [2021-06-05 11:12:52,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:12:52,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:52,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:12:52,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-06-05 11:12:52,808 INFO L87 Difference]: Start difference. First operand 12364 states and 45932 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:12:53,271 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-06-05 11:12:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:53,326 INFO L93 Difference]: Finished difference Result 19560 states and 69572 transitions. [2021-06-05 11:12:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 11:12:53,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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 70 [2021-06-05 11:12:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:53,357 INFO L225 Difference]: With dead ends: 19560 [2021-06-05 11:12:53,357 INFO L226 Difference]: Without dead ends: 15874 [2021-06-05 11:12:53,358 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 496.2ms TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 11:12:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15874 states. [2021-06-05 11:12:53,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15874 to 9666. [2021-06-05 11:12:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9666 states, 9664 states have (on average 3.6803600993377485) internal successors, (35567), 9665 states have internal predecessors, (35567), 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) [2021-06-05 11:12:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9666 states to 9666 states and 35567 transitions. [2021-06-05 11:12:53,552 INFO L78 Accepts]: Start accepts. Automaton has 9666 states and 35567 transitions. Word has length 70 [2021-06-05 11:12:53,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:53,553 INFO L482 AbstractCegarLoop]: Abstraction has 9666 states and 35567 transitions. [2021-06-05 11:12:53,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:12:53,553 INFO L276 IsEmpty]: Start isEmpty. Operand 9666 states and 35567 transitions. [2021-06-05 11:12:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:12:53,565 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:53,565 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:53,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-05 11:12:53,769 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:53,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:53,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1557602563, now seen corresponding path program 1 times [2021-06-05 11:12:53,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:53,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868916948] [2021-06-05 11:12:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:12:53,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:53,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868916948] [2021-06-05 11:12:53,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868916948] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:53,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301016430] [2021-06-05 11:12:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:53,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:12:53,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:12:54,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301016430] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:54,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:54,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:12:54,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901534462] [2021-06-05 11:12:54,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:12:54,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:54,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:12:54,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:12:54,299 INFO L87 Difference]: Start difference. First operand 9666 states and 35567 transitions. Second operand has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 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) [2021-06-05 11:12:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:55,178 INFO L93 Difference]: Finished difference Result 16634 states and 58839 transitions. [2021-06-05 11:12:55,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-05 11:12:55,178 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 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 74 [2021-06-05 11:12:55,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:55,205 INFO L225 Difference]: With dead ends: 16634 [2021-06-05 11:12:55,205 INFO L226 Difference]: Without dead ends: 13364 [2021-06-05 11:12:55,205 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 793.9ms TimeCoverageRelationStatistics Valid=424, Invalid=1928, Unknown=0, NotChecked=0, Total=2352 [2021-06-05 11:12:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13364 states. [2021-06-05 11:12:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13364 to 8956. [2021-06-05 11:12:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8954 states have (on average 3.6385972749609112) internal successors, (32580), 8955 states have internal predecessors, (32580), 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) [2021-06-05 11:12:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 32580 transitions. [2021-06-05 11:12:55,379 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 32580 transitions. Word has length 74 [2021-06-05 11:12:55,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:55,379 INFO L482 AbstractCegarLoop]: Abstraction has 8956 states and 32580 transitions. [2021-06-05 11:12:55,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 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) [2021-06-05 11:12:55,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 32580 transitions. [2021-06-05 11:12:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:12:55,390 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:55,390 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:55,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:55,591 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:55,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:55,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1442893275, now seen corresponding path program 2 times [2021-06-05 11:12:55,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:55,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143382207] [2021-06-05 11:12:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-05 11:12:55,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:55,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143382207] [2021-06-05 11:12:55,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143382207] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:55,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615076632] [2021-06-05 11:12:55,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:55,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 11:12:55,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:55,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:12:55,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-05 11:12:56,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615076632] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:56,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:56,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:12:56,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429427828] [2021-06-05 11:12:56,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:12:56,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:56,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:12:56,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:12:56,135 INFO L87 Difference]: Start difference. First operand 8956 states and 32580 transitions. Second operand has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 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) [2021-06-05 11:12:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:56,791 INFO L93 Difference]: Finished difference Result 13060 states and 46272 transitions. [2021-06-05 11:12:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 11:12:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 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 74 [2021-06-05 11:12:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:56,811 INFO L225 Difference]: With dead ends: 13060 [2021-06-05 11:12:56,812 INFO L226 Difference]: Without dead ends: 10198 [2021-06-05 11:12:56,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 656.0ms TimeCoverageRelationStatistics Valid=328, Invalid=1564, Unknown=0, NotChecked=0, Total=1892 [2021-06-05 11:12:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2021-06-05 11:12:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 7462. [2021-06-05 11:12:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 3.609785522788204) internal successors, (26929), 7461 states have internal predecessors, (26929), 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) [2021-06-05 11:12:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 26929 transitions. [2021-06-05 11:12:56,951 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 26929 transitions. Word has length 74 [2021-06-05 11:12:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:56,951 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 26929 transitions. [2021-06-05 11:12:56,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 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) [2021-06-05 11:12:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 26929 transitions. [2021-06-05 11:12:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:12:56,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:56,961 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:57,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-06-05 11:12:57,161 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:57,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:57,162 INFO L82 PathProgramCache]: Analyzing trace with hash -784704609, now seen corresponding path program 3 times [2021-06-05 11:12:57,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:57,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041510363] [2021-06-05 11:12:57,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 11:12:57,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:57,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041510363] [2021-06-05 11:12:57,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041510363] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:57,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287191686] [2021-06-05 11:12:57,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:57,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 11:12:57,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:57,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:12:57,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 11:12:57,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287191686] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:57,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:57,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:12:57,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493655673] [2021-06-05 11:12:57,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:12:57,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:57,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:12:57,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:12:57,681 INFO L87 Difference]: Start difference. First operand 7462 states and 26929 transitions. Second operand has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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) [2021-06-05 11:12:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:58,277 INFO L93 Difference]: Finished difference Result 9894 states and 35009 transitions. [2021-06-05 11:12:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:12:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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 74 [2021-06-05 11:12:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:58,292 INFO L225 Difference]: With dead ends: 9894 [2021-06-05 11:12:58,292 INFO L226 Difference]: Without dead ends: 8178 [2021-06-05 11:12:58,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 641.2ms TimeCoverageRelationStatistics Valid=296, Invalid=1426, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 11:12:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2021-06-05 11:12:58,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 6506. [2021-06-05 11:12:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6504 states have (on average 3.6010147601476015) internal successors, (23421), 6505 states have internal predecessors, (23421), 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) [2021-06-05 11:12:58,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 23421 transitions. [2021-06-05 11:12:58,398 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 23421 transitions. Word has length 74 [2021-06-05 11:12:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:58,398 INFO L482 AbstractCegarLoop]: Abstraction has 6506 states and 23421 transitions. [2021-06-05 11:12:58,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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) [2021-06-05 11:12:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 23421 transitions. [2021-06-05 11:12:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:12:58,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:58,409 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:58,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:58,617 INFO L430 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:58,617 INFO L82 PathProgramCache]: Analyzing trace with hash -41418819, now seen corresponding path program 4 times [2021-06-05 11:12:58,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:58,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079202844] [2021-06-05 11:12:58,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 11:12:58,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:58,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079202844] [2021-06-05 11:12:58,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079202844] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:58,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637605150] [2021-06-05 11:12:58,760 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:12:58,842 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 11:12:58,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:12:58,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:12:58,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:12:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 11:12:59,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637605150] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:12:59,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:12:59,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:12:59,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047509046] [2021-06-05 11:12:59,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:12:59,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:59,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:12:59,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:12:59,169 INFO L87 Difference]: Start difference. First operand 6506 states and 23421 transitions. Second operand has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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) [2021-06-05 11:12:59,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:59,772 INFO L93 Difference]: Finished difference Result 8938 states and 31501 transitions. [2021-06-05 11:12:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:12:59,772 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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 74 [2021-06-05 11:12:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:59,783 INFO L225 Difference]: With dead ends: 8938 [2021-06-05 11:12:59,783 INFO L226 Difference]: Without dead ends: 6136 [2021-06-05 11:12:59,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 654.5ms TimeCoverageRelationStatistics Valid=294, Invalid=1428, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 11:12:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2021-06-05 11:12:59,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 5072. [2021-06-05 11:12:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5070 states have (on average 3.534516765285996) internal successors, (17920), 5071 states have internal predecessors, (17920), 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) [2021-06-05 11:12:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 17920 transitions. [2021-06-05 11:12:59,872 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 17920 transitions. Word has length 74 [2021-06-05 11:12:59,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:59,872 INFO L482 AbstractCegarLoop]: Abstraction has 5072 states and 17920 transitions. [2021-06-05 11:12:59,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.615384615384615) internal successors, (120), 26 states have internal predecessors, (120), 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) [2021-06-05 11:12:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 17920 transitions. [2021-06-05 11:12:59,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:12:59,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:59,878 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:00,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:13:00,093 INFO L430 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:00,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:00,093 INFO L82 PathProgramCache]: Analyzing trace with hash 2120943387, now seen corresponding path program 5 times [2021-06-05 11:13:00,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:00,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521393222] [2021-06-05 11:13:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:13:00,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:00,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521393222] [2021-06-05 11:13:00,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521393222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:00,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:00,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:13:00,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85610625] [2021-06-05 11:13:00,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:13:00,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:00,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:13:00,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:13:00,222 INFO L87 Difference]: Start difference. First operand 5072 states and 17920 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:13:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:00,552 INFO L93 Difference]: Finished difference Result 5832 states and 20388 transitions. [2021-06-05 11:13:00,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 11:13:00,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:13:00,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:00,560 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 11:13:00,561 INFO L226 Difference]: Without dead ends: 4236 [2021-06-05 11:13:00,561 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 259.7ms TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:13:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4236 states. [2021-06-05 11:13:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4236 to 4236. [2021-06-05 11:13:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4236 states, 4234 states have (on average 3.4888993859234767) internal successors, (14772), 4235 states have internal predecessors, (14772), 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) [2021-06-05 11:13:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4236 states to 4236 states and 14772 transitions. [2021-06-05 11:13:00,625 INFO L78 Accepts]: Start accepts. Automaton has 4236 states and 14772 transitions. Word has length 74 [2021-06-05 11:13:00,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:00,625 INFO L482 AbstractCegarLoop]: Abstraction has 4236 states and 14772 transitions. [2021-06-05 11:13:00,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:13:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4236 states and 14772 transitions. [2021-06-05 11:13:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:13:00,630 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:00,630 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:00,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 11:13:00,630 INFO L430 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:00,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1512025883, now seen corresponding path program 6 times [2021-06-05 11:13:00,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:00,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122703032] [2021-06-05 11:13:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:13:00,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:00,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122703032] [2021-06-05 11:13:00,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122703032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:00,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:00,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:13:00,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905957476] [2021-06-05 11:13:00,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:13:00,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:00,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:13:00,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:13:00,775 INFO L87 Difference]: Start difference. First operand 4236 states and 14772 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:13:00,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:00,998 INFO L93 Difference]: Finished difference Result 3932 states and 13724 transitions. [2021-06-05 11:13:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 11:13:00,999 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:13:00,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:00,999 INFO L225 Difference]: With dead ends: 3932 [2021-06-05 11:13:00,999 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:13:01,000 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 217.8ms TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2021-06-05 11:13:01,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:13:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:13:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:13:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:13:01,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-06-05 11:13:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:01,001 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:13:01,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:13:01,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:13:01,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:13:01,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 11:13:01,002 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:13:01,002 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 11:13:01,005 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:13:01,006 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:13:01,006 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:13:01,006 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:13:01,006 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:13:01,006 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:13:01,006 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:13:01,006 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:13:01,007 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 103 transitions, 248 flow [2021-06-05 11:13:08,232 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 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) [2021-06-05 11:13:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 48789 states, 48779 states have (on average 4.35187273211833) internal successors, (212280), 48788 states have internal predecessors, (212280), 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) [2021-06-05 11:13:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 11:13:08,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:08,340 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:08,340 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:13:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1403611569, now seen corresponding path program 1 times [2021-06-05 11:13:08,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:08,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618435249] [2021-06-05 11:13:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:13:08,363 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:13:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:13:08,374 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:13:08,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:13:08,394 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:13:08,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 11:13:08,394 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:13:08,394 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:13:08,395 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,416 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,417 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,430 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,431 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,432 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,433 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,434 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,436 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,436 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,436 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,436 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,436 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,437 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,437 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,437 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,437 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,438 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,438 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,439 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,439 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,439 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,440 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,441 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,441 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,442 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,443 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,443 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,443 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,444 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,444 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,445 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,445 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:13:08,446 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 11:13:08,446 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 11:13:08,447 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:13:08,447 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:13:08,447 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:13:08,447 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:13:08,447 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:13:08,447 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:13:08,447 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:13:08,448 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:13:08,449 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-06-05 11:17:05,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 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) [2021-06-05 11:17:06,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 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) [2021-06-05 11:17:06,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-06-05 11:17:06,170 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:17:06,170 INFO L521 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] [2021-06-05 11:17:06,170 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:17:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:17:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1908114173, now seen corresponding path program 1 times [2021-06-05 11:17:06,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:17:06,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637791564] [2021-06-05 11:17:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:17:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:17:06,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:17:06,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637791564] [2021-06-05 11:17:06,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637791564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:17:06,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:17:06,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 11:17:06,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858361411] [2021-06-05 11:17:06,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 11:17:06,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:17:06,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 11:17:06,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:17:06,579 INFO L87 Difference]: Start difference. First operand has 292869 states, 292857 states have (on average 5.1834171626425185) internal successors, (1518000), 292868 states have internal predecessors, (1518000), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:17:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:17:11,443 INFO L93 Difference]: Finished difference Result 365261 states and 1798625 transitions. [2021-06-05 11:17:11,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 11:17:11,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-06-05 11:17:11,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:17:12,292 INFO L225 Difference]: With dead ends: 365261 [2021-06-05 11:17:12,292 INFO L226 Difference]: Without dead ends: 173040 [2021-06-05 11:17:12,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:17:15,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173040 states. [2021-06-05 11:17:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173040 to 173040. [2021-06-05 11:17:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173040 states, 173035 states have (on average 4.865917299968214) internal successors, (841974), 173039 states have internal predecessors, (841974), 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) [2021-06-05 11:17:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173040 states to 173040 states and 841974 transitions. [2021-06-05 11:17:21,382 INFO L78 Accepts]: Start accepts. Automaton has 173040 states and 841974 transitions. Word has length 34 [2021-06-05 11:17:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:17:21,383 INFO L482 AbstractCegarLoop]: Abstraction has 173040 states and 841974 transitions. [2021-06-05 11:17:21,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-06-05 11:17:21,383 INFO L276 IsEmpty]: Start isEmpty. Operand 173040 states and 841974 transitions. [2021-06-05 11:17:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-05 11:17:21,383 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:17:21,383 INFO L521 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] [2021-06-05 11:17:21,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 11:17:21,383 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:17:21,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:17:21,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1086704383, now seen corresponding path program 1 times [2021-06-05 11:17:21,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:17:21,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395854818] [2021-06-05 11:17:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:17:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:17:21,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:17:21,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395854818] [2021-06-05 11:17:21,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395854818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:17:21,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:17:21,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 11:17:21,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408761391] [2021-06-05 11:17:21,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:17:21,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:17:21,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:17:21,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 11:17:21,493 INFO L87 Difference]: Start difference. First operand 173040 states and 841974 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:17:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:17:25,379 INFO L93 Difference]: Finished difference Result 321012 states and 1505068 transitions. [2021-06-05 11:17:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 11:17:25,380 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-05 11:17:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:17:27,290 INFO L225 Difference]: With dead ends: 321012 [2021-06-05 11:17:27,290 INFO L226 Difference]: Without dead ends: 271144 [2021-06-05 11:17:27,291 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 171.6ms TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-06-05 11:17:30,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271144 states. [2021-06-05 11:17:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271144 to 175908. [2021-06-05 11:17:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175908 states, 175904 states have (on average 4.800391122430416) internal successors, (844408), 175907 states have internal predecessors, (844408), 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) [2021-06-05 11:17:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175908 states to 175908 states and 844408 transitions. [2021-06-05 11:17:37,130 INFO L78 Accepts]: Start accepts. Automaton has 175908 states and 844408 transitions. Word has length 46 [2021-06-05 11:17:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:17:37,131 INFO L482 AbstractCegarLoop]: Abstraction has 175908 states and 844408 transitions. [2021-06-05 11:17:37,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-05 11:17:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 175908 states and 844408 transitions. [2021-06-05 11:17:37,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 11:17:37,132 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:17:37,132 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:17:37,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 11:17:37,132 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:17:37,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:17:37,133 INFO L82 PathProgramCache]: Analyzing trace with hash -327900800, now seen corresponding path program 1 times [2021-06-05 11:17:37,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:17:37,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923278130] [2021-06-05 11:17:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:17:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:17:37,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:17:37,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923278130] [2021-06-05 11:17:37,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923278130] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:17:37,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787212577] [2021-06-05 11:17:37,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:17:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:37,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 11:17:37,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:17:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:17:37,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787212577] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:17:37,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:17:37,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 11:17:37,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100972743] [2021-06-05 11:17:37,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 11:17:37,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:17:37,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 11:17:37,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-06-05 11:17:37,430 INFO L87 Difference]: Start difference. First operand 175908 states and 844408 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:17:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:17:42,248 INFO L93 Difference]: Finished difference Result 320548 states and 1488640 transitions. [2021-06-05 11:17:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 11:17:42,249 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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 56 [2021-06-05 11:17:42,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:17:45,348 INFO L225 Difference]: With dead ends: 320548 [2021-06-05 11:17:45,349 INFO L226 Difference]: Without dead ends: 270068 [2021-06-05 11:17:45,349 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 272.4ms TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 11:17:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270068 states. [2021-06-05 11:17:53,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270068 to 176716. [2021-06-05 11:17:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176716 states, 176712 states have (on average 4.7422246366969985) internal successors, (838008), 176715 states have internal predecessors, (838008), 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) [2021-06-05 11:17:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176716 states to 176716 states and 838008 transitions. [2021-06-05 11:17:55,387 INFO L78 Accepts]: Start accepts. Automaton has 176716 states and 838008 transitions. Word has length 56 [2021-06-05 11:17:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:17:55,387 INFO L482 AbstractCegarLoop]: Abstraction has 176716 states and 838008 transitions. [2021-06-05 11:17:55,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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) [2021-06-05 11:17:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 176716 states and 838008 transitions. [2021-06-05 11:17:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:17:55,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:17:55,389 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:17:55,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:17:55,590 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:17:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:17:55,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1990760464, now seen corresponding path program 1 times [2021-06-05 11:17:55,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:17:55,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190395583] [2021-06-05 11:17:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:17:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:17:55,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:17:55,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190395583] [2021-06-05 11:17:55,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190395583] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:17:55,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030583783] [2021-06-05 11:17:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:17:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:17:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:17:55,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:17:56,752 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2021-06-05 11:17:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 11:17:56,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030583783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:17:56,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:17:56,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 11:17:56,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853282017] [2021-06-05 11:17:56,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:17:56,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:17:56,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:17:56,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:17:56,904 INFO L87 Difference]: Start difference. First operand 176716 states and 838008 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:18:00,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:00,969 INFO L93 Difference]: Finished difference Result 407204 states and 1857498 transitions. [2021-06-05 11:18:00,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:18:00,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-06-05 11:18:00,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:03,429 INFO L225 Difference]: With dead ends: 407204 [2021-06-05 11:18:03,429 INFO L226 Difference]: Without dead ends: 390044 [2021-06-05 11:18:03,430 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 560.6ms TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2021-06-05 11:18:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390044 states. [2021-06-05 11:18:13,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390044 to 173892. [2021-06-05 11:18:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173892 states, 173888 states have (on average 4.746227456753773) internal successors, (825312), 173891 states have internal predecessors, (825312), 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) [2021-06-05 11:18:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173892 states to 173892 states and 825312 transitions. [2021-06-05 11:18:15,111 INFO L78 Accepts]: Start accepts. Automaton has 173892 states and 825312 transitions. Word has length 60 [2021-06-05 11:18:15,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:15,111 INFO L482 AbstractCegarLoop]: Abstraction has 173892 states and 825312 transitions. [2021-06-05 11:18:15,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:18:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 173892 states and 825312 transitions. [2021-06-05 11:18:15,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:18:15,113 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:15,113 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:15,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:15,314 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:15,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:15,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1469779694, now seen corresponding path program 2 times [2021-06-05 11:18:15,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:15,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535762464] [2021-06-05 11:18:15,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:15,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:15,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535762464] [2021-06-05 11:18:15,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535762464] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:15,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328659009] [2021-06-05 11:18:15,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:15,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:18:15,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:18:15,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:18:15,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 11:18:15,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328659009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:18:15,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:18:15,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 11:18:15,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206888391] [2021-06-05 11:18:15,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:18:15,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:15,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:18:15,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:18:15,830 INFO L87 Difference]: Start difference. First operand 173892 states and 825312 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:18:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:20,969 INFO L93 Difference]: Finished difference Result 403532 states and 1838354 transitions. [2021-06-05 11:18:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:18:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-06-05 11:18:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:23,975 INFO L225 Difference]: With dead ends: 403532 [2021-06-05 11:18:23,975 INFO L226 Difference]: Without dead ends: 386228 [2021-06-05 11:18:23,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 515.4ms TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2021-06-05 11:18:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386228 states. [2021-06-05 11:18:35,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386228 to 159892. [2021-06-05 11:18:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159892 states, 159889 states have (on average 4.7664066946444095) internal successors, (762096), 159891 states have internal predecessors, (762096), 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) [2021-06-05 11:18:37,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159892 states to 159892 states and 762096 transitions. [2021-06-05 11:18:37,227 INFO L78 Accepts]: Start accepts. Automaton has 159892 states and 762096 transitions. Word has length 60 [2021-06-05 11:18:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:37,227 INFO L482 AbstractCegarLoop]: Abstraction has 159892 states and 762096 transitions. [2021-06-05 11:18:37,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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) [2021-06-05 11:18:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 159892 states and 762096 transitions. [2021-06-05 11:18:37,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 11:18:37,233 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:37,233 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:37,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-06-05 11:18:37,437 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:37,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:37,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1479281632, now seen corresponding path program 1 times [2021-06-05 11:18:37,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:37,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465839587] [2021-06-05 11:18:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:37,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:37,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465839587] [2021-06-05 11:18:37,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465839587] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:37,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966304776] [2021-06-05 11:18:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:37,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 11:18:37,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:37,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966304776] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:37,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:18:37,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-05 11:18:37,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249594692] [2021-06-05 11:18:37,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 11:18:37,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:37,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 11:18:37,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-06-05 11:18:37,813 INFO L87 Difference]: Start difference. First operand 159892 states and 762096 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2021-06-05 11:18:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:41,200 INFO L93 Difference]: Finished difference Result 290088 states and 1339226 transitions. [2021-06-05 11:18:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 11:18:41,201 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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 [2021-06-05 11:18:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:18:43,122 INFO L225 Difference]: With dead ends: 290088 [2021-06-05 11:18:43,122 INFO L226 Difference]: Without dead ends: 239680 [2021-06-05 11:18:43,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 288.8ms TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:18:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239680 states. [2021-06-05 11:18:49,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239680 to 163360. [2021-06-05 11:18:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163360 states, 163357 states have (on average 4.670543655919245) internal successors, (762966), 163359 states have internal predecessors, (762966), 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) [2021-06-05 11:18:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163360 states to 163360 states and 762966 transitions. [2021-06-05 11:18:50,872 INFO L78 Accepts]: Start accepts. Automaton has 163360 states and 762966 transitions. Word has length 66 [2021-06-05 11:18:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:18:50,873 INFO L482 AbstractCegarLoop]: Abstraction has 163360 states and 762966 transitions. [2021-06-05 11:18:50,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2021-06-05 11:18:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 163360 states and 762966 transitions. [2021-06-05 11:18:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:18:50,886 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:18:50,886 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:18:51,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-06-05 11:18:51,087 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:18:51,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:18:51,087 INFO L82 PathProgramCache]: Analyzing trace with hash 848577072, now seen corresponding path program 1 times [2021-06-05 11:18:51,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:18:51,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002329511] [2021-06-05 11:18:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:18:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:51,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:18:51,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002329511] [2021-06-05 11:18:51,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002329511] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:51,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911842197] [2021-06-05 11:18:51,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:18:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:18:51,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 11:18:51,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:18:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:18:51,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911842197] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:18:51,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:18:51,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 11:18:51,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140443943] [2021-06-05 11:18:51,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:18:51,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:18:51,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:18:51,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:18:51,515 INFO L87 Difference]: Start difference. First operand 163360 states and 762966 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:18:52,477 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-06-05 11:18:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:18:58,083 INFO L93 Difference]: Finished difference Result 560592 states and 2509198 transitions. [2021-06-05 11:18:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-05 11:18:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-06-05 11:18:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:19:03,285 INFO L225 Difference]: With dead ends: 560592 [2021-06-05 11:19:03,285 INFO L226 Difference]: Without dead ends: 541816 [2021-06-05 11:19:03,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 1331.2ms TimeCoverageRelationStatistics Valid=783, Invalid=3377, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 11:19:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541816 states. [2021-06-05 11:19:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541816 to 158448. [2021-06-05 11:19:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158448 states, 158445 states have (on average 4.682621729937833) internal successors, (741938), 158447 states have internal predecessors, (741938), 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) [2021-06-05 11:19:18,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158448 states to 158448 states and 741938 transitions. [2021-06-05 11:19:18,855 INFO L78 Accepts]: Start accepts. Automaton has 158448 states and 741938 transitions. Word has length 70 [2021-06-05 11:19:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:19:18,855 INFO L482 AbstractCegarLoop]: Abstraction has 158448 states and 741938 transitions. [2021-06-05 11:19:18,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:19:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 158448 states and 741938 transitions. [2021-06-05 11:19:18,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:19:18,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:19:18,869 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:19:19,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-06-05 11:19:19,070 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:19:19,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:19:19,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1388005810, now seen corresponding path program 2 times [2021-06-05 11:19:19,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:19:19,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675178546] [2021-06-05 11:19:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:19:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:19:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:19:19,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:19:19,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675178546] [2021-06-05 11:19:19,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675178546] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:19:19,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113797537] [2021-06-05 11:19:19,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:19:19,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:19:19,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:19:19,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:19:19,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:19:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:19:19,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113797537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:19:19,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:19:19,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-06-05 11:19:19,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196965193] [2021-06-05 11:19:19,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:19:19,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:19:19,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:19:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-06-05 11:19:19,485 INFO L87 Difference]: Start difference. First operand 158448 states and 741938 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:19:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:19:23,133 INFO L93 Difference]: Finished difference Result 358404 states and 1609490 transitions. [2021-06-05 11:19:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:19:23,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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 70 [2021-06-05 11:19:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:19:25,417 INFO L225 Difference]: With dead ends: 358404 [2021-06-05 11:19:25,417 INFO L226 Difference]: Without dead ends: 340780 [2021-06-05 11:19:25,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 430.9ms TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:19:27,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340780 states. [2021-06-05 11:19:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340780 to 149888. [2021-06-05 11:19:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149888 states, 149885 states have (on average 4.672368816092337) internal successors, (700318), 149887 states have internal predecessors, (700318), 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) [2021-06-05 11:19:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149888 states to 149888 states and 700318 transitions. [2021-06-05 11:19:34,944 INFO L78 Accepts]: Start accepts. Automaton has 149888 states and 700318 transitions. Word has length 70 [2021-06-05 11:19:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:19:34,944 INFO L482 AbstractCegarLoop]: Abstraction has 149888 states and 700318 transitions. [2021-06-05 11:19:34,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:19:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 149888 states and 700318 transitions. [2021-06-05 11:19:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:19:34,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:19:34,957 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:19:35,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:19:35,161 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:19:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:19:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1060657690, now seen corresponding path program 1 times [2021-06-05 11:19:35,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:19:35,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386177344] [2021-06-05 11:19:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:19:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:19:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:19:35,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:19:35,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386177344] [2021-06-05 11:19:35,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386177344] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:19:35,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901419631] [2021-06-05 11:19:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:19:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:19:35,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 11:19:35,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:19:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:19:35,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901419631] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:19:35,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:19:35,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 11:19:35,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430054061] [2021-06-05 11:19:35,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:19:35,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:19:35,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:19:35,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:19:35,598 INFO L87 Difference]: Start difference. First operand 149888 states and 700318 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:19:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:19:43,108 INFO L93 Difference]: Finished difference Result 624984 states and 2784362 transitions. [2021-06-05 11:19:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-05 11:19:43,109 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-06-05 11:19:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:19:46,652 INFO L225 Difference]: With dead ends: 624984 [2021-06-05 11:19:46,652 INFO L226 Difference]: Without dead ends: 603544 [2021-06-05 11:19:46,653 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3475 ImplicationChecksByTransitivity, 1271.9ms TimeCoverageRelationStatistics Valid=1838, Invalid=8874, Unknown=0, NotChecked=0, Total=10712 [2021-06-05 11:19:51,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603544 states. [2021-06-05 11:19:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603544 to 168732. [2021-06-05 11:20:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168732 states, 168729 states have (on average 4.671704330612995) internal successors, (788252), 168731 states have internal predecessors, (788252), 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) [2021-06-05 11:20:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168732 states to 168732 states and 788252 transitions. [2021-06-05 11:20:01,331 INFO L78 Accepts]: Start accepts. Automaton has 168732 states and 788252 transitions. Word has length 70 [2021-06-05 11:20:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:20:01,331 INFO L482 AbstractCegarLoop]: Abstraction has 168732 states and 788252 transitions. [2021-06-05 11:20:01,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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) [2021-06-05 11:20:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 168732 states and 788252 transitions. [2021-06-05 11:20:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:20:01,344 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:20:01,344 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:20:01,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:20:01,545 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:20:01,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:20:01,545 INFO L82 PathProgramCache]: Analyzing trace with hash -655905858, now seen corresponding path program 2 times [2021-06-05 11:20:01,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:20:01,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053198761] [2021-06-05 11:20:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:20:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:20:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:20:01,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:20:01,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053198761] [2021-06-05 11:20:01,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053198761] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:20:01,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763640619] [2021-06-05 11:20:01,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:20:01,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 11:20:01,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:20:01,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:20:01,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:20:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 11:20:02,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763640619] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:20:02,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:20:02,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2021-06-05 11:20:02,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688489006] [2021-06-05 11:20:02,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 11:20:02,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:20:02,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 11:20:02,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-06-05 11:20:02,070 INFO L87 Difference]: Start difference. First operand 168732 states and 788252 transitions. Second operand has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 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) [2021-06-05 11:20:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:20:11,044 INFO L93 Difference]: Finished difference Result 631648 states and 2794498 transitions. [2021-06-05 11:20:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-05 11:20:11,045 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 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 70 [2021-06-05 11:20:11,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:20:16,903 INFO L225 Difference]: With dead ends: 631648 [2021-06-05 11:20:16,903 INFO L226 Difference]: Without dead ends: 579728 [2021-06-05 11:20:16,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 2295.2ms TimeCoverageRelationStatistics Valid=1108, Invalid=5372, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:20:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579728 states. [2021-06-05 11:20:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579728 to 155272. [2021-06-05 11:20:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155272 states, 155269 states have (on average 4.657555597060585) internal successors, (723174), 155271 states have internal predecessors, (723174), 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) [2021-06-05 11:20:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155272 states to 155272 states and 723174 transitions. [2021-06-05 11:20:31,218 INFO L78 Accepts]: Start accepts. Automaton has 155272 states and 723174 transitions. Word has length 70 [2021-06-05 11:20:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:20:31,218 INFO L482 AbstractCegarLoop]: Abstraction has 155272 states and 723174 transitions. [2021-06-05 11:20:31,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 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) [2021-06-05 11:20:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand 155272 states and 723174 transitions. [2021-06-05 11:20:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:20:31,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:20:31,229 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:20:31,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-06-05 11:20:31,430 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:20:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:20:31,431 INFO L82 PathProgramCache]: Analyzing trace with hash 442367838, now seen corresponding path program 3 times [2021-06-05 11:20:31,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:20:31,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767239803] [2021-06-05 11:20:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:20:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:20:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:20:31,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:20:31,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767239803] [2021-06-05 11:20:31,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767239803] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:20:31,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874438551] [2021-06-05 11:20:31,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:20:31,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-06-05 11:20:31,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:20:31,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:20:31,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:20:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:20:31,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874438551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:20:31,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:20:31,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-06-05 11:20:31,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892444936] [2021-06-05 11:20:31,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:20:31,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:20:31,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:20:31,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-06-05 11:20:31,842 INFO L87 Difference]: Start difference. First operand 155272 states and 723174 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:20:36,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:20:36,105 INFO L93 Difference]: Finished difference Result 336740 states and 1505834 transitions. [2021-06-05 11:20:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:20:36,121 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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 70 [2021-06-05 11:20:36,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:20:37,702 INFO L225 Difference]: With dead ends: 336740 [2021-06-05 11:20:37,702 INFO L226 Difference]: Without dead ends: 317964 [2021-06-05 11:20:37,702 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1074.5ms TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:20:40,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317964 states. [2021-06-05 11:20:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317964 to 145416. [2021-06-05 11:20:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145416 states, 145413 states have (on average 4.657671597450022) internal successors, (677286), 145415 states have internal predecessors, (677286), 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) [2021-06-05 11:20:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145416 states to 145416 states and 677286 transitions. [2021-06-05 11:20:47,294 INFO L78 Accepts]: Start accepts. Automaton has 145416 states and 677286 transitions. Word has length 70 [2021-06-05 11:20:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:20:47,295 INFO L482 AbstractCegarLoop]: Abstraction has 145416 states and 677286 transitions. [2021-06-05 11:20:47,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2021-06-05 11:20:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 145416 states and 677286 transitions. [2021-06-05 11:20:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:20:47,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:20:47,319 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:20:47,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:20:47,529 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:20:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:20:47,529 INFO L82 PathProgramCache]: Analyzing trace with hash -818909334, now seen corresponding path program 1 times [2021-06-05 11:20:47,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:20:47,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563152319] [2021-06-05 11:20:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:20:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:20:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 11:20:47,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:20:47,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563152319] [2021-06-05 11:20:47,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563152319] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:20:47,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525971635] [2021-06-05 11:20:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:20:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:20:47,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:20:47,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:20:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 11:20:48,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525971635] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:20:48,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:20:48,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:20:48,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763565186] [2021-06-05 11:20:48,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:20:48,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:20:48,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:20:48,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:20:48,031 INFO L87 Difference]: Start difference. First operand 145416 states and 677286 transitions. Second operand has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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) [2021-06-05 11:20:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:20:53,209 INFO L93 Difference]: Finished difference Result 432594 states and 1920831 transitions. [2021-06-05 11:20:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:20:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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 74 [2021-06-05 11:20:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:20:55,970 INFO L225 Difference]: With dead ends: 432594 [2021-06-05 11:20:55,971 INFO L226 Difference]: Without dead ends: 425754 [2021-06-05 11:20:55,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 887.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2574, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 11:20:58,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425754 states. [2021-06-05 11:21:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425754 to 143376. [2021-06-05 11:21:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143376 states, 143373 states have (on average 4.654000404539209) internal successors, (667258), 143375 states have internal predecessors, (667258), 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) [2021-06-05 11:21:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143376 states to 143376 states and 667258 transitions. [2021-06-05 11:21:05,983 INFO L78 Accepts]: Start accepts. Automaton has 143376 states and 667258 transitions. Word has length 74 [2021-06-05 11:21:05,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:21:05,983 INFO L482 AbstractCegarLoop]: Abstraction has 143376 states and 667258 transitions. [2021-06-05 11:21:05,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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) [2021-06-05 11:21:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 143376 states and 667258 transitions. [2021-06-05 11:21:06,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:21:06,002 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:21:06,003 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:21:06,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-06-05 11:21:06,227 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:21:06,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:21:06,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1239475080, now seen corresponding path program 2 times [2021-06-05 11:21:06,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:21:06,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912410226] [2021-06-05 11:21:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:21:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:21:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 11:21:06,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:21:06,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912410226] [2021-06-05 11:21:06,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912410226] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:21:06,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892754080] [2021-06-05 11:21:06,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:21:06,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 11:21:06,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:21:06,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 11:21:06,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:21:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-05 11:21:06,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892754080] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:21:06,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:21:06,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-06-05 11:21:06,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747222220] [2021-06-05 11:21:06,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 11:21:06,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:21:06,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 11:21:06,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-06-05 11:21:06,743 INFO L87 Difference]: Start difference. First operand 143376 states and 667258 transitions. Second operand has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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) [2021-06-05 11:21:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:21:11,944 INFO L93 Difference]: Finished difference Result 421370 states and 1872667 transitions. [2021-06-05 11:21:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:21:11,945 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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 74 [2021-06-05 11:21:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:21:14,601 INFO L225 Difference]: With dead ends: 421370 [2021-06-05 11:21:14,602 INFO L226 Difference]: Without dead ends: 412730 [2021-06-05 11:21:14,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1565.3ms TimeCoverageRelationStatistics Valid=618, Invalid=2574, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 11:21:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412730 states. [2021-06-05 11:21:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412730 to 139496. [2021-06-05 11:21:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139496 states, 139493 states have (on average 4.656850164524385) internal successors, (649598), 139495 states have internal predecessors, (649598), 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) [2021-06-05 11:21:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139496 states to 139496 states and 649598 transitions. [2021-06-05 11:21:24,675 INFO L78 Accepts]: Start accepts. Automaton has 139496 states and 649598 transitions. Word has length 74 [2021-06-05 11:21:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:21:24,675 INFO L482 AbstractCegarLoop]: Abstraction has 139496 states and 649598 transitions. [2021-06-05 11:21:24,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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) [2021-06-05 11:21:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 139496 states and 649598 transitions. [2021-06-05 11:21:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:21:24,691 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:21:24,691 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:21:24,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-06-05 11:21:24,892 INFO L430 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:21:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:21:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash 780534514, now seen corresponding path program 3 times [2021-06-05 11:21:24,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:21:24,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916965751] [2021-06-05 11:21:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:21:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:21:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:21:25,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:21:25,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916965751] [2021-06-05 11:21:25,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916965751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:21:25,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:21:25,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:21:25,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568579923] [2021-06-05 11:21:25,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:21:25,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:21:25,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:21:25,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:21:25,010 INFO L87 Difference]: Start difference. First operand 139496 states and 649598 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:21:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:21:30,522 INFO L93 Difference]: Finished difference Result 414146 states and 1841727 transitions. [2021-06-05 11:21:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:21:30,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:21:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:21:34,468 INFO L225 Difference]: With dead ends: 414146 [2021-06-05 11:21:34,468 INFO L226 Difference]: Without dead ends: 407306 [2021-06-05 11:21:34,468 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 356.6ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-06-05 11:21:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407306 states. [2021-06-05 11:21:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407306 to 133536. [2021-06-05 11:21:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133536 states, 133533 states have (on average 4.666546846097968) internal successors, (623138), 133535 states have internal predecessors, (623138), 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) [2021-06-05 11:21:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133536 states to 133536 states and 623138 transitions. [2021-06-05 11:21:44,715 INFO L78 Accepts]: Start accepts. Automaton has 133536 states and 623138 transitions. Word has length 74 [2021-06-05 11:21:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:21:44,715 INFO L482 AbstractCegarLoop]: Abstraction has 133536 states and 623138 transitions. [2021-06-05 11:21:44,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:21:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 133536 states and 623138 transitions. [2021-06-05 11:21:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:21:44,730 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:21:44,730 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:21:44,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 11:21:44,730 INFO L430 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:21:44,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:21:44,731 INFO L82 PathProgramCache]: Analyzing trace with hash 259553744, now seen corresponding path program 4 times [2021-06-05 11:21:44,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:21:44,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543673100] [2021-06-05 11:21:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:21:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:21:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:21:44,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:21:44,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543673100] [2021-06-05 11:21:44,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543673100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:21:44,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:21:44,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:21:44,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193242788] [2021-06-05 11:21:44,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:21:44,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:21:44,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:21:44,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:21:44,833 INFO L87 Difference]: Start difference. First operand 133536 states and 623138 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:21:49,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:21:49,539 INFO L93 Difference]: Finished difference Result 409490 states and 1822019 transitions. [2021-06-05 11:21:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:21:49,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:21:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:21:52,241 INFO L225 Difference]: With dead ends: 409490 [2021-06-05 11:21:52,241 INFO L226 Difference]: Without dead ends: 400850 [2021-06-05 11:21:52,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 355.6ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-06-05 11:21:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400850 states. [2021-06-05 11:22:00,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400850 to 129696. [2021-06-05 11:22:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129696 states, 129693 states have (on average 4.669473294626541) internal successors, (605598), 129695 states have internal predecessors, (605598), 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) [2021-06-05 11:22:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129696 states to 129696 states and 605598 transitions. [2021-06-05 11:22:00,926 INFO L78 Accepts]: Start accepts. Automaton has 129696 states and 605598 transitions. Word has length 74 [2021-06-05 11:22:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:22:00,927 INFO L482 AbstractCegarLoop]: Abstraction has 129696 states and 605598 transitions. [2021-06-05 11:22:00,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:22:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 129696 states and 605598 transitions. [2021-06-05 11:22:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:22:00,941 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:22:00,941 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:22:00,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 11:22:00,941 INFO L430 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:22:00,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:22:00,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1612947858, now seen corresponding path program 5 times [2021-06-05 11:22:00,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:22:00,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923279064] [2021-06-05 11:22:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:22:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:22:01,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:22:01,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923279064] [2021-06-05 11:22:01,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923279064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:22:01,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:22:01,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:22:01,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988012251] [2021-06-05 11:22:01,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:22:01,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:22:01,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:22:01,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:22:01,931 INFO L87 Difference]: Start difference. First operand 129696 states and 605598 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:22:06,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:22:06,012 INFO L93 Difference]: Finished difference Result 402386 states and 1791399 transitions. [2021-06-05 11:22:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:22:06,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:22:06,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:22:08,681 INFO L225 Difference]: With dead ends: 402386 [2021-06-05 11:22:08,681 INFO L226 Difference]: Without dead ends: 395546 [2021-06-05 11:22:08,681 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 437.2ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-06-05 11:22:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395546 states. [2021-06-05 11:22:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395546 to 123736. [2021-06-05 11:22:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123736 states, 123733 states have (on average 4.680546014401979) internal successors, (579138), 123735 states have internal predecessors, (579138), 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) [2021-06-05 11:22:18,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123736 states to 123736 states and 579138 transitions. [2021-06-05 11:22:18,032 INFO L78 Accepts]: Start accepts. Automaton has 123736 states and 579138 transitions. Word has length 74 [2021-06-05 11:22:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:22:18,033 INFO L482 AbstractCegarLoop]: Abstraction has 123736 states and 579138 transitions. [2021-06-05 11:22:18,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:22:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 123736 states and 579138 transitions. [2021-06-05 11:22:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 11:22:18,051 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:22:18,051 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:22:18,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 11:22:18,051 INFO L430 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:22:18,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:22:18,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2073101934, now seen corresponding path program 6 times [2021-06-05 11:22:18,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:22:18,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5872328] [2021-06-05 11:22:18,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:22:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-05 11:22:18,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:22:18,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5872328] [2021-06-05 11:22:18,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5872328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:22:18,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:22:18,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 11:22:18,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772487078] [2021-06-05 11:22:18,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 11:22:18,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:22:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 11:22:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-06-05 11:22:18,202 INFO L87 Difference]: Start difference. First operand 123736 states and 579138 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:22:22,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:22:22,187 INFO L93 Difference]: Finished difference Result 391162 states and 1743235 transitions. [2021-06-05 11:22:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 11:22:22,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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 74 [2021-06-05 11:22:22,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:22:24,685 INFO L225 Difference]: With dead ends: 391162 [2021-06-05 11:22:24,685 INFO L226 Difference]: Without dead ends: 382090 [2021-06-05 11:22:24,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 400.3ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-06-05 11:22:26,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382090 states. [2021-06-05 11:22:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382090 to 110160. [2021-06-05 11:22:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110160 states, 110158 states have (on average 4.735289311715899) internal successors, (521630), 110159 states have internal predecessors, (521630), 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) [2021-06-05 11:22:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110160 states to 110160 states and 521630 transitions. [2021-06-05 11:22:32,770 INFO L78 Accepts]: Start accepts. Automaton has 110160 states and 521630 transitions. Word has length 74 [2021-06-05 11:22:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:22:32,770 INFO L482 AbstractCegarLoop]: Abstraction has 110160 states and 521630 transitions. [2021-06-05 11:22:32,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 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) [2021-06-05 11:22:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 110160 states and 521630 transitions. [2021-06-05 11:22:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-05 11:22:32,788 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:22:32,788 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:22:32,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 11:22:32,788 INFO L430 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:22:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:22:32,788 INFO L82 PathProgramCache]: Analyzing trace with hash 533200735, now seen corresponding path program 1 times [2021-06-05 11:22:32,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:22:32,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534358917] [2021-06-05 11:22:32,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:22:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:22:32,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:22:32,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534358917] [2021-06-05 11:22:32,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534358917] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:22:32,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436674754] [2021-06-05 11:22:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:22:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:32,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 11:22:32,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:22:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:22:33,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436674754] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:22:33,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:22:33,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-06-05 11:22:33,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334926800] [2021-06-05 11:22:33,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:22:33,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:22:33,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:22:33,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:22:33,212 INFO L87 Difference]: Start difference. First operand 110160 states and 521630 transitions. Second operand has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 28 states have internal predecessors, (134), 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) [2021-06-05 11:22:36,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:22:36,227 INFO L93 Difference]: Finished difference Result 208656 states and 958766 transitions. [2021-06-05 11:22:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-05 11:22:36,227 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 28 states have internal predecessors, (134), 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 76 [2021-06-05 11:22:36,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:22:36,928 INFO L225 Difference]: With dead ends: 208656 [2021-06-05 11:22:36,928 INFO L226 Difference]: Without dead ends: 163626 [2021-06-05 11:22:36,928 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 366.1ms TimeCoverageRelationStatistics Valid=361, Invalid=1619, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 11:22:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163626 states. [2021-06-05 11:22:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163626 to 114986. [2021-06-05 11:22:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114986 states, 114984 states have (on average 4.568539970778543) internal successors, (525309), 114985 states have internal predecessors, (525309), 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) [2021-06-05 11:22:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114986 states to 114986 states and 525309 transitions. [2021-06-05 11:22:42,068 INFO L78 Accepts]: Start accepts. Automaton has 114986 states and 525309 transitions. Word has length 76 [2021-06-05 11:22:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:22:42,068 INFO L482 AbstractCegarLoop]: Abstraction has 114986 states and 525309 transitions. [2021-06-05 11:22:42,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 28 states have internal predecessors, (134), 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) [2021-06-05 11:22:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 114986 states and 525309 transitions. [2021-06-05 11:22:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 11:22:42,119 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:22:42,119 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:22:42,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2021-06-05 11:22:42,320 INFO L430 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:22:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:22:42,320 INFO L82 PathProgramCache]: Analyzing trace with hash 806169103, now seen corresponding path program 1 times [2021-06-05 11:22:42,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:22:42,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549994678] [2021-06-05 11:22:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:22:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:22:42,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:22:42,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549994678] [2021-06-05 11:22:42,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549994678] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:22:42,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557864199] [2021-06-05 11:22:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:22:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:42,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-05 11:22:42,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:22:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:22:42,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557864199] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:22:42,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:22:42,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-05 11:22:42,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910299158] [2021-06-05 11:22:42,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-05 11:22:42,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:22:42,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-05 11:22:42,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=859, Unknown=0, NotChecked=0, Total=992 [2021-06-05 11:22:42,772 INFO L87 Difference]: Start difference. First operand 114986 states and 525309 transitions. Second operand has 32 states, 32 states have (on average 4.4375) internal successors, (142), 32 states have internal predecessors, (142), 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) [2021-06-05 11:22:46,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:22:46,894 INFO L93 Difference]: Finished difference Result 275504 states and 1225368 transitions. [2021-06-05 11:22:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 11:22:46,895 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.4375) internal successors, (142), 32 states have internal predecessors, (142), 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 80 [2021-06-05 11:22:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:22:48,923 INFO L225 Difference]: With dead ends: 275504 [2021-06-05 11:22:48,923 INFO L226 Difference]: Without dead ends: 259100 [2021-06-05 11:22:48,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 1190.6ms TimeCoverageRelationStatistics Valid=622, Invalid=2800, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 11:22:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259100 states. [2021-06-05 11:22:56,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259100 to 127186. [2021-06-05 11:22:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127186 states, 127184 states have (on average 4.582203736319034) internal successors, (582783), 127185 states have internal predecessors, (582783), 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) [2021-06-05 11:22:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127186 states to 127186 states and 582783 transitions. [2021-06-05 11:22:56,714 INFO L78 Accepts]: Start accepts. Automaton has 127186 states and 582783 transitions. Word has length 80 [2021-06-05 11:22:56,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:22:56,714 INFO L482 AbstractCegarLoop]: Abstraction has 127186 states and 582783 transitions. [2021-06-05 11:22:56,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 4.4375) internal successors, (142), 32 states have internal predecessors, (142), 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) [2021-06-05 11:22:56,715 INFO L276 IsEmpty]: Start isEmpty. Operand 127186 states and 582783 transitions. [2021-06-05 11:22:56,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 11:22:56,771 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:22:56,772 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:22:56,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:22:56,988 INFO L430 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:22:56,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:22:56,990 INFO L82 PathProgramCache]: Analyzing trace with hash 786726957, now seen corresponding path program 2 times [2021-06-05 11:22:56,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:22:56,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747656767] [2021-06-05 11:22:56,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:22:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:22:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:22:57,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:22:57,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747656767] [2021-06-05 11:22:57,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747656767] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:22:57,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228475925] [2021-06-05 11:22:57,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:22:57,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-06-05 11:22:57,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 11:22:57,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-05 11:22:57,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:22:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-05 11:22:57,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228475925] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:22:57,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:22:57,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-06-05 11:22:57,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264298652] [2021-06-05 11:22:57,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 11:22:57,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:22:57,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 11:22:57,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:22:57,425 INFO L87 Difference]: Start difference. First operand 127186 states and 582783 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) [2021-06-05 11:22:58,117 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 14 [2021-06-05 11:23:00,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:23:00,589 INFO L93 Difference]: Finished difference Result 270214 states and 1196971 transitions. [2021-06-05 11:23:00,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:23:00,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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 80 [2021-06-05 11:23:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:23:02,475 INFO L225 Difference]: With dead ends: 270214 [2021-06-05 11:23:02,476 INFO L226 Difference]: Without dead ends: 251708 [2021-06-05 11:23:02,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 1093.6ms TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2021-06-05 11:23:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251708 states. Received shutdown request... [2021-06-05 11:23:05,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-06-05 11:23:05,965 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:23:05,965 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT (1/2) [2021-06-05 11:23:05,965 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 11:23:05,966 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:23:05,966 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:23:05,966 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:23:05,966 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:23:05,966 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:23:05,966 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:23:05,966 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:23:05,966 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:23:05,967 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-06-05 11:23:05,967 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:23:05,967 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 11:23:05,967 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2021-06-05 11:23:05,969 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:23:05,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:23:05 BasicIcfg [2021-06-05 11:23:05,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:23:05,969 INFO L168 Benchmark]: Toolchain (without parser) took 650800.37 ms. Allocated memory was 375.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 337.2 MB in the beginning and 11.6 GB in the end (delta: -11.3 GB). Peak memory consumption was 4.3 GB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory was 355.4 MB in the beginning and 355.3 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.99 ms. Allocated memory is still 375.4 MB. Free memory was 337.0 MB in the beginning and 339.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.50 ms. Allocated memory is still 375.4 MB. Free memory was 339.3 MB in the beginning and 337.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: Boogie Preprocessor took 17.11 ms. Allocated memory is still 375.4 MB. Free memory was 337.2 MB in the beginning and 336.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: RCFGBuilder took 426.81 ms. Allocated memory is still 375.4 MB. Free memory was 336.2 MB in the beginning and 312.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L168 Benchmark]: TraceAbstraction took 649833.76 ms. Allocated memory was 375.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 312.1 MB in the beginning and 11.6 GB in the end (delta: -11.3 GB). Peak memory consumption was 4.3 GB. Max. memory is 16.0 GB. [2021-06-05 11:23:05,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory was 355.4 MB in the beginning and 355.3 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 478.99 ms. Allocated memory is still 375.4 MB. Free memory was 337.0 MB in the beginning and 339.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.50 ms. Allocated memory is still 375.4 MB. Free memory was 339.3 MB in the beginning and 337.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.11 ms. Allocated memory is still 375.4 MB. Free memory was 337.2 MB in the beginning and 336.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 426.81 ms. Allocated memory is still 375.4 MB. Free memory was 336.2 MB in the beginning and 312.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 649833.76 ms. Allocated memory was 375.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 312.1 MB in the beginning and 11.6 GB in the end (delta: -11.3 GB). Peak memory consumption was 4.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 689]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 132 places, 120 transitions, 304 flow. Already constructed 2 states. Currently 1 states in worklist.. - TimeoutResultAtElement [Line: 708]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 132 places, 120 transitions, 304 flow. Already constructed 2 states. Currently 1 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 84 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1403.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 28.6ms, AutomataDifference: 501.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 66.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 205 SDtfs, 599 SDslu, 714 SDs, 0 SdLazy, 174 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 127.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 374.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1329occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 73.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 107.8ms SatisfiabilityAnalysisTime, 479.4ms InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5948.5ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 31.0ms, AutomataDifference: 2171.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 323.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 687 SDtfs, 2316 SDslu, 4440 SDs, 0 SdLazy, 1218 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 533.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 2066.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8109occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 388.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 1858 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 48.9ms SsaConstructionTime, 127.6ms SatisfiabilityAnalysisTime, 1987.7ms InterpolantComputationTime, 432 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 2543 SizeOfPredicates, 26 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 6/30 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 9 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36795.6ms, OverallIterations: 16, TraceHistogramMax: 3, EmptinessCheckTime: 330.2ms, AutomataDifference: 14667.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5189.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3486 SDtfs, 13197 SDslu, 33357 SDs, 0 SdLazy, 9959 SolverSat, 397 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3591.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1375 GetRequests, 705 SyntacticMatches, 1 SemanticMatches, 669 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10244 ImplicationChecksByTransitivity, 9729.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48789occurred in iteration=0, InterpolantAutomatonStates: 433, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7265.7ms AutomataMinimizationTime, 16 MinimizatonAttempts, 135144 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 171.6ms SsaConstructionTime, 357.7ms SatisfiabilityAnalysisTime, 5639.7ms InterpolantComputationTime, 1864 NumberOfCodeBlocks, 1796 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1836 ConstructedInterpolants, 0 QuantifiedInterpolants, 10518 SizeOfPredicates, 122 NumberOfNonLiveVariables, 1855 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 164/430 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 597517.7ms, OverallIterations: 20, TraceHistogramMax: 4, EmptinessCheckTime: 672.1ms, AutomataDifference: 150039.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 237353.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5892 SDtfs, 18374 SDslu, 50491 SDs, 0 SdLazy, 15891 SolverSat, 586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7959.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1753 GetRequests, 845 SyntacticMatches, 1 SemanticMatches, 907 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13843 ImplicationChecksByTransitivity, 14955.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=292869occurred in iteration=0, InterpolantAutomatonStates: 630, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 197949.8ms AutomataMinimizationTime, 20 MinimizatonAttempts, 4138302 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 170.7ms SsaConstructionTime, 331.3ms SatisfiabilityAnalysisTime, 7243.3ms InterpolantComputationTime, 2328 NumberOfCodeBlocks, 2243 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2294 ConstructedInterpolants, 0 QuantifiedInterpolants, 12790 SizeOfPredicates, 144 NumberOfNonLiveVariables, 2188 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 34 InterpolantComputations, 11 PerfectInterpolantSequences, 358/700 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 84 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 117.5ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 6.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1329occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.9ms SsaConstructionTime, 11.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 7 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 458.8ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 25.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 341.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8109occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 52.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 9 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7388.9ms, OverallIterations: 1, TraceHistogramMax: 4, EmptinessCheckTime: 107.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7225.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48789occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2ms SsaConstructionTime, 19.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 4 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 1.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown