/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:16:36,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:16:36,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:16:36,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:16:36,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:16:36,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:16:36,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:16:36,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:16:36,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:16:36,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:16:36,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:16:36,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:16:36,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:16:36,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:16:36,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:16:36,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:16:36,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:16:36,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:16:36,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:16:36,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:16:36,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:16:36,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:16:36,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:16:36,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:16:36,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:16:36,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:16:36,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:16:36,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:16:36,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:16:36,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:16:36,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:16:36,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:16:36,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:16:36,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:16:36,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:16:36,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:16:36,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:16:36,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:16:36,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:16:36,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:16:36,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:16:36,395 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:16:36,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:16:36,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:16:36,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:16:36,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:16:36,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:16:36,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:16:36,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:16:36,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:16:36,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:16:36,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:16:36,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:16:36,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:16:36,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:16:36,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:16:36,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:16:36,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:16:36,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:16:36,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:16:36,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:16:36,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:16:36,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:16:36,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:16:36,400 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:16:36,400 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:16:36,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:16:36,400 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:16:36,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:16:36,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:16:36,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:16:36,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:16:36,793 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:16:36,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2020-11-09 17:16:36,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb7e2c45/18660291b7134a458f54d6fca914cb04/FLAGbe9b734a5 [2020-11-09 17:16:37,693 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:16:37,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2020-11-09 17:16:37,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb7e2c45/18660291b7134a458f54d6fca914cb04/FLAGbe9b734a5 [2020-11-09 17:16:37,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb7e2c45/18660291b7134a458f54d6fca914cb04 [2020-11-09 17:16:37,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:16:37,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:16:37,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:16:37,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:16:37,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:16:37,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:37" (1/1) ... [2020-11-09 17:16:37,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087f73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:37, skipping insertion in model container [2020-11-09 17:16:37,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:37" (1/1) ... [2020-11-09 17:16:37,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:16:38,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:16:38,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:16:38,486 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:16:38,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:16:38,698 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:16:38,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38 WrapperNode [2020-11-09 17:16:38,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:16:38,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:16:38,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:16:38,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:16:38,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:16:38,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:16:38,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:16:38,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:16:38,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... [2020-11-09 17:16:38,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:16:38,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:16:38,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:16:38,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:16:38,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:16:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-09 17:16:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-09 17:16:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 17:16:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 17:16:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:16:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:16:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:16:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:16:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:16:38,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:16:38,891 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:16:39,242 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:16:39,242 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-09 17:16:39,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:39 BoogieIcfgContainer [2020-11-09 17:16:39,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:16:39,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:16:39,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:16:39,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:16:39,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:37" (1/3) ... [2020-11-09 17:16:39,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312260bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:39, skipping insertion in model container [2020-11-09 17:16:39,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:38" (2/3) ... [2020-11-09 17:16:39,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312260bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:39, skipping insertion in model container [2020-11-09 17:16:39,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:39" (3/3) ... [2020-11-09 17:16:39,254 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2020-11-09 17:16:39,273 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:16:39,273 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:16:39,277 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:16:39,278 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:16:39,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,318 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,319 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,321 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,322 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,322 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,323 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,344 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,344 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,345 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,345 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:39,348 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:16:39,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:16:39,388 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:16:39,388 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:16:39,388 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:16:39,388 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:16:39,388 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:16:39,388 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:16:39,389 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:16:39,389 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:16:39,403 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:16:39,404 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-09 17:16:39,407 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-09 17:16:39,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 150 flow [2020-11-09 17:16:39,464 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2020-11-09 17:16:39,465 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:16:39,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2020-11-09 17:16:39,475 INFO L116 LiptonReduction]: Number of co-enabled transitions 942 [2020-11-09 17:16:42,200 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-11-09 17:16:42,667 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-09 17:16:42,888 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 17:16:42,997 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 17:16:43,337 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-11-09 17:16:43,495 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 17:16:43,876 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-11-09 17:16:44,055 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 17:16:44,059 INFO L131 LiptonReduction]: Checked pairs total: 919 [2020-11-09 17:16:44,060 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-09 17:16:44,066 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-11-09 17:16:44,077 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-11-09 17:16:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-11-09 17:16:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 17:16:44,085 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:44,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 17:16:44,086 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:16:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:44,093 INFO L82 PathProgramCache]: Analyzing trace with hash 283649, now seen corresponding path program 1 times [2020-11-09 17:16:44,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:44,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433640200] [2020-11-09 17:16:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:44,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433640200] [2020-11-09 17:16:44,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:44,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:16:44,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [421717843] [2020-11-09 17:16:44,366 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:44,369 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:44,382 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 17:16:44,382 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:44,387 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:44,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:16:44,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:16:44,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:44,407 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-11-09 17:16:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:44,442 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-11-09 17:16:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:16:44,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 17:16:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:44,452 INFO L225 Difference]: With dead ends: 35 [2020-11-09 17:16:44,452 INFO L226 Difference]: Without dead ends: 31 [2020-11-09 17:16:44,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:44,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-09 17:16:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-09 17:16:44,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-09 17:16:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-11-09 17:16:44,493 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-11-09 17:16:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:44,493 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-11-09 17:16:44,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:16:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-11-09 17:16:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:16:44,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:44,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:44,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:16:44,495 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:16:44,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:44,496 INFO L82 PathProgramCache]: Analyzing trace with hash -68679350, now seen corresponding path program 1 times [2020-11-09 17:16:44,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:44,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155956058] [2020-11-09 17:16:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:44,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155956058] [2020-11-09 17:16:44,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:44,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:44,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1180462041] [2020-11-09 17:16:44,626 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:44,628 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:44,631 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 17:16:44,631 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:44,632 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:44,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:16:44,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:44,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:16:44,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:44,635 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-11-09 17:16:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:44,656 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-11-09 17:16:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:16:44,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 17:16:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:44,657 INFO L225 Difference]: With dead ends: 26 [2020-11-09 17:16:44,657 INFO L226 Difference]: Without dead ends: 24 [2020-11-09 17:16:44,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-09 17:16:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-09 17:16:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-09 17:16:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-11-09 17:16:44,663 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-11-09 17:16:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:44,663 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-11-09 17:16:44,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:16:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-11-09 17:16:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:16:44,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:44,664 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:44,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:16:44,665 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:16:44,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:44,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2129054148, now seen corresponding path program 1 times [2020-11-09 17:16:44,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:44,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490285979] [2020-11-09 17:16:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:44,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:44,752 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:44,780 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:16:44,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:16:44,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:16:44,781 WARN L386 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 17:16:44,781 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-11-09 17:16:44,792 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,792 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,793 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,794 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,795 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,797 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,798 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,798 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,798 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,802 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,803 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,805 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,806 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,807 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,808 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,808 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,808 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,808 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,808 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,809 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,810 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,810 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,811 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,812 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,813 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,815 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,815 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,815 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,815 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,817 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,818 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,818 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:44,820 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:16:44,821 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:16:44,822 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:16:44,822 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:16:44,822 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:16:44,823 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:16:44,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:16:44,823 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:16:44,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:16:44,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:16:44,826 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:16:44,826 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 93 transitions, 210 flow [2020-11-09 17:16:44,827 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 93 transitions, 210 flow [2020-11-09 17:16:44,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 210 flow [2020-11-09 17:16:44,862 INFO L129 PetriNetUnfolder]: 6/102 cut-off events. [2020-11-09 17:16:44,862 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-11-09 17:16:44,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 102 events. 6/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-11-09 17:16:44,868 INFO L116 LiptonReduction]: Number of co-enabled transitions 1428 [2020-11-09 17:16:47,992 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-11-09 17:16:48,184 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-11-09 17:16:48,823 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 17:16:48,982 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 17:16:49,344 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-11-09 17:16:49,490 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 17:16:49,494 INFO L131 LiptonReduction]: Checked pairs total: 1748 [2020-11-09 17:16:49,494 INFO L133 LiptonReduction]: Total number of compositions: 93 [2020-11-09 17:16:49,494 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-11-09 17:16:49,513 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-11-09 17:16:49,513 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-11-09 17:16:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 17:16:49,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:49,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 17:16:49,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:49,516 INFO L82 PathProgramCache]: Analyzing trace with hash 490502, now seen corresponding path program 1 times [2020-11-09 17:16:49,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:49,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859939505] [2020-11-09 17:16:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:49,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859939505] [2020-11-09 17:16:49,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:49,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:16:49,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1375129192] [2020-11-09 17:16:49,595 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:49,596 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:49,597 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 17:16:49,597 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:49,598 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:49,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:16:49,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:49,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:16:49,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:49,599 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-11-09 17:16:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:49,638 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-11-09 17:16:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:16:49,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 17:16:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:49,653 INFO L225 Difference]: With dead ends: 185 [2020-11-09 17:16:49,653 INFO L226 Difference]: Without dead ends: 171 [2020-11-09 17:16:49,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:49,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-09 17:16:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-11-09 17:16:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-09 17:16:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-11-09 17:16:49,698 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-11-09 17:16:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:49,698 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-11-09 17:16:49,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:16:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-11-09 17:16:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:16:49,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:49,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:49,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:16:49,699 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:49,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1141253342, now seen corresponding path program 1 times [2020-11-09 17:16:49,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:49,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542402611] [2020-11-09 17:16:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:49,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542402611] [2020-11-09 17:16:49,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:49,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:49,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [877503291] [2020-11-09 17:16:49,763 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:49,764 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:49,784 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:16:49,785 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:49,785 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:49,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:49,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:49,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:49,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:49,786 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-11-09 17:16:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:49,892 INFO L93 Difference]: Finished difference Result 225 states and 491 transitions. [2020-11-09 17:16:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:16:49,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:16:49,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:49,895 INFO L225 Difference]: With dead ends: 225 [2020-11-09 17:16:49,895 INFO L226 Difference]: Without dead ends: 221 [2020-11-09 17:16:49,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:16:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-11-09 17:16:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 162. [2020-11-09 17:16:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 17:16:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-11-09 17:16:49,922 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-11-09 17:16:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:49,923 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-11-09 17:16:49,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:49,923 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-11-09 17:16:49,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:16:49,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:49,924 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:49,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:16:49,925 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:49,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:49,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1991641480, now seen corresponding path program 1 times [2020-11-09 17:16:49,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:49,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751666907] [2020-11-09 17:16:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 17:16:50,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751666907] [2020-11-09 17:16:50,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:50,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:50,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [299122705] [2020-11-09 17:16:50,027 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:50,029 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:50,031 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 17:16:50,031 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:50,032 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:50,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:50,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:50,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:50,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:50,033 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-11-09 17:16:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:50,116 INFO L93 Difference]: Finished difference Result 213 states and 458 transitions. [2020-11-09 17:16:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:16:50,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:16:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:50,119 INFO L225 Difference]: With dead ends: 213 [2020-11-09 17:16:50,119 INFO L226 Difference]: Without dead ends: 209 [2020-11-09 17:16:50,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:16:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-09 17:16:50,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 153. [2020-11-09 17:16:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-11-09 17:16:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-11-09 17:16:50,133 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-11-09 17:16:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:50,134 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-11-09 17:16:50,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-11-09 17:16:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:16:50,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:50,136 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:50,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:16:50,136 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:50,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:50,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1615436759, now seen corresponding path program 1 times [2020-11-09 17:16:50,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:50,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935433561] [2020-11-09 17:16:50,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:50,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:50,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:50,201 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:16:50,202 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:16:50,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:16:50,205 WARN L386 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 17:16:50,206 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-11-09 17:16:50,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,228 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,228 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,229 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,229 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,229 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,229 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,230 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,231 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,231 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,237 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,237 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,258 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,267 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,268 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,270 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,270 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,271 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,271 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,271 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,271 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:50,272 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:16:50,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-09 17:16:50,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:16:50,274 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:16:50,274 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:16:50,274 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:16:50,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:16:50,275 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:16:50,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:16:50,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:16:50,278 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:16:50,278 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 116 transitions, 274 flow [2020-11-09 17:16:50,278 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 116 transitions, 274 flow [2020-11-09 17:16:50,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 116 transitions, 274 flow [2020-11-09 17:16:50,304 INFO L129 PetriNetUnfolder]: 7/124 cut-off events. [2020-11-09 17:16:50,304 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-11-09 17:16:50,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 124 events. 7/124 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 216 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 138. Up to 8 conditions per place. [2020-11-09 17:16:50,310 INFO L116 LiptonReduction]: Number of co-enabled transitions 1998 [2020-11-09 17:16:53,456 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-09 17:16:53,617 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-11-09 17:16:54,906 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-11-09 17:16:55,067 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 17:16:55,404 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-11-09 17:16:55,557 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 17:16:55,569 INFO L131 LiptonReduction]: Checked pairs total: 2907 [2020-11-09 17:16:55,569 INFO L133 LiptonReduction]: Total number of compositions: 125 [2020-11-09 17:16:55,569 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-11-09 17:16:55,599 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-11-09 17:16:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-11-09 17:16:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 17:16:55,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:55,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 17:16:55,600 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 750612, now seen corresponding path program 1 times [2020-11-09 17:16:55,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:55,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201181484] [2020-11-09 17:16:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:55,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201181484] [2020-11-09 17:16:55,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:55,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:16:55,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [856900302] [2020-11-09 17:16:55,639 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:55,639 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:55,640 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 17:16:55,640 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:55,640 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:55,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:16:55,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:55,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:16:55,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:55,641 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-11-09 17:16:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:55,687 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-11-09 17:16:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:16:55,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 17:16:55,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:55,695 INFO L225 Difference]: With dead ends: 600 [2020-11-09 17:16:55,696 INFO L226 Difference]: Without dead ends: 559 [2020-11-09 17:16:55,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:16:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-11-09 17:16:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-11-09 17:16:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-11-09 17:16:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-11-09 17:16:55,738 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-11-09 17:16:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:55,738 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-11-09 17:16:55,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:16:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-11-09 17:16:55,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:16:55,739 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:55,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:55,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:16:55,739 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:55,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1922210467, now seen corresponding path program 1 times [2020-11-09 17:16:55,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:55,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379137532] [2020-11-09 17:16:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:55,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:55,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379137532] [2020-11-09 17:16:55,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:55,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:55,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1073708234] [2020-11-09 17:16:55,820 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:55,821 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:55,822 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:16:55,822 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:55,823 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:55,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:55,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:55,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:55,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:55,824 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-11-09 17:16:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:55,950 INFO L93 Difference]: Finished difference Result 933 states and 2580 transitions. [2020-11-09 17:16:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:16:55,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:16:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:55,963 INFO L225 Difference]: With dead ends: 933 [2020-11-09 17:16:55,963 INFO L226 Difference]: Without dead ends: 928 [2020-11-09 17:16:55,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:16:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-11-09 17:16:55,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 585. [2020-11-09 17:16:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-11-09 17:16:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-11-09 17:16:56,000 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-11-09 17:16:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:56,002 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-11-09 17:16:56,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-11-09 17:16:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:16:56,010 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:56,010 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:56,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:16:56,010 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash -169664854, now seen corresponding path program 1 times [2020-11-09 17:16:56,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:56,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318586442] [2020-11-09 17:16:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 17:16:56,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318586442] [2020-11-09 17:16:56,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:56,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:56,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [357436733] [2020-11-09 17:16:56,100 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:56,102 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:56,104 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 17:16:56,104 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:56,104 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:56,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:56,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:56,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:56,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:56,106 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-11-09 17:16:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:56,233 INFO L93 Difference]: Finished difference Result 963 states and 2673 transitions. [2020-11-09 17:16:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:16:56,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:16:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:56,242 INFO L225 Difference]: With dead ends: 963 [2020-11-09 17:16:56,242 INFO L226 Difference]: Without dead ends: 956 [2020-11-09 17:16:56,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:16:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-11-09 17:16:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 611. [2020-11-09 17:16:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-11-09 17:16:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-11-09 17:16:56,280 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-11-09 17:16:56,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:56,281 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-11-09 17:16:56,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:56,281 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-11-09 17:16:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:16:56,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:56,284 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:56,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 17:16:56,284 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:56,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:56,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1253176275, now seen corresponding path program 1 times [2020-11-09 17:16:56,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:56,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077482518] [2020-11-09 17:16:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:56,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077482518] [2020-11-09 17:16:56,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427786439] [2020-11-09 17:16:56,442 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 [2020-11-09 17:16:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:56,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:16:56,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:16:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:56,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:16:56,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:16:56,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1780363645] [2020-11-09 17:16:56,785 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:56,787 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:56,791 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 17:16:56,791 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:56,922 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [7578#(<= (+ thr2Thread1of3ForFork1_~t~0 2) ~n~0), 7579#(<= (+ ~x~0 2) ~n~0), 7580#(<= (+ thr2Thread1of3ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 7581#(<= (+ ~x~0 1) ULTIMATE.start_main_~i~0)] [2020-11-09 17:16:56,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-09 17:16:56,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:56,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-09 17:16:56,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2020-11-09 17:16:56,925 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 14 states. [2020-11-09 17:16:57,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:57,987 INFO L93 Difference]: Finished difference Result 1368 states and 3517 transitions. [2020-11-09 17:16:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 17:16:57,988 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-09 17:16:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:58,001 INFO L225 Difference]: With dead ends: 1368 [2020-11-09 17:16:58,001 INFO L226 Difference]: Without dead ends: 1355 [2020-11-09 17:16:58,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=397, Invalid=1765, Unknown=0, NotChecked=0, Total=2162 [2020-11-09 17:16:58,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-11-09 17:16:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 591. [2020-11-09 17:16:58,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-11-09 17:16:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-11-09 17:16:58,052 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-11-09 17:16:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:58,052 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-11-09 17:16:58,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-09 17:16:58,053 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-11-09 17:16:58,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:16:58,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:58,054 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:58,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-09 17:16:58,268 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:58,268 INFO L82 PathProgramCache]: Analyzing trace with hash 160843847, now seen corresponding path program 2 times [2020-11-09 17:16:58,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:58,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774989451] [2020-11-09 17:16:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:58,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:58,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774989451] [2020-11-09 17:16:58,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704216414] [2020-11-09 17:16:58,392 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 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 [2020-11-09 17:16:58,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:16:58,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:16:58,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:16:58,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:16:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:58,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:16:58,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:16:58,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1339591997] [2020-11-09 17:16:58,599 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:58,601 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:58,603 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 17:16:58,604 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:58,604 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:58,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:16:58,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:58,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:16:58,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 17:16:58,605 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 10 states. [2020-11-09 17:16:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:59,112 INFO L93 Difference]: Finished difference Result 1167 states and 3044 transitions. [2020-11-09 17:16:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:16:59,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 17:16:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:59,122 INFO L225 Difference]: With dead ends: 1167 [2020-11-09 17:16:59,122 INFO L226 Difference]: Without dead ends: 1159 [2020-11-09 17:16:59,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:16:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-11-09 17:16:59,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 536. [2020-11-09 17:16:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-11-09 17:16:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-11-09 17:16:59,158 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-11-09 17:16:59,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:59,158 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-11-09 17:16:59,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:16:59,158 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-11-09 17:16:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:16:59,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:59,160 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:59,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-09 17:16:59,375 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:59,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1497752280, now seen corresponding path program 1 times [2020-11-09 17:16:59,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:59,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082506925] [2020-11-09 17:16:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 17:16:59,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082506925] [2020-11-09 17:16:59,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:59,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:59,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1161200997] [2020-11-09 17:16:59,441 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:59,443 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:59,445 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 17:16:59,446 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:59,446 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:59,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:59,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:59,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:59,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:59,447 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-11-09 17:16:59,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:59,553 INFO L93 Difference]: Finished difference Result 860 states and 2398 transitions. [2020-11-09 17:16:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:16:59,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:16:59,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:59,560 INFO L225 Difference]: With dead ends: 860 [2020-11-09 17:16:59,560 INFO L226 Difference]: Without dead ends: 852 [2020-11-09 17:16:59,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:16:59,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-11-09 17:16:59,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 549. [2020-11-09 17:16:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-11-09 17:16:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-11-09 17:16:59,585 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-11-09 17:16:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:59,586 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-11-09 17:16:59,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-11-09 17:16:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:16:59,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:59,587 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:59,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-09 17:16:59,588 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash -819922657, now seen corresponding path program 1 times [2020-11-09 17:16:59,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:59,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640186351] [2020-11-09 17:16:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:59,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:16:59,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:16:59,625 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:16:59,625 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:16:59,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-09 17:16:59,626 WARN L386 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 17:16:59,626 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,646 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,648 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,649 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,675 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,675 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,675 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,675 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,675 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,678 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,678 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,678 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,678 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,678 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,680 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,680 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,680 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,680 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,680 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,681 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,681 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,682 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,682 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,682 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:59,683 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:16:59,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-09 17:16:59,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:16:59,684 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:16:59,684 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:16:59,684 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:16:59,684 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:16:59,684 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:16:59,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:16:59,684 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:16:59,687 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:16:59,687 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 139 transitions, 342 flow [2020-11-09 17:16:59,690 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 139 transitions, 342 flow [2020-11-09 17:16:59,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 139 transitions, 342 flow [2020-11-09 17:16:59,732 INFO L129 PetriNetUnfolder]: 8/146 cut-off events. [2020-11-09 17:16:59,733 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-11-09 17:16:59,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 146 events. 8/146 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 166. Up to 10 conditions per place. [2020-11-09 17:16:59,743 INFO L116 LiptonReduction]: Number of co-enabled transitions 2652 [2020-11-09 17:17:03,761 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-11-09 17:17:04,426 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 17:17:04,573 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 17:17:04,919 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-11-09 17:17:05,078 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 17:17:05,100 INFO L131 LiptonReduction]: Checked pairs total: 4085 [2020-11-09 17:17:05,100 INFO L133 LiptonReduction]: Total number of compositions: 157 [2020-11-09 17:17:05,101 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-11-09 17:17:05,235 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-11-09 17:17:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-11-09 17:17:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 17:17:05,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:05,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 17:17:05,236 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:05,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:05,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1064410, now seen corresponding path program 1 times [2020-11-09 17:17:05,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:05,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127394208] [2020-11-09 17:17:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:05,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127394208] [2020-11-09 17:17:05,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:05,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:17:05,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [905927900] [2020-11-09 17:17:05,267 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:05,267 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:05,268 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 17:17:05,268 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:05,268 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:05,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:17:05,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:05,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:17:05,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:17:05,269 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-11-09 17:17:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:05,318 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-11-09 17:17:05,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:17:05,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 17:17:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:05,338 INFO L225 Difference]: With dead ends: 1889 [2020-11-09 17:17:05,338 INFO L226 Difference]: Without dead ends: 1767 [2020-11-09 17:17:05,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:17:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-11-09 17:17:05,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-11-09 17:17:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-11-09 17:17:05,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-11-09 17:17:05,424 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-11-09 17:17:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:05,424 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-11-09 17:17:05,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:17:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-11-09 17:17:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:17:05,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:05,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:05,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-09 17:17:05,426 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:05,426 INFO L82 PathProgramCache]: Analyzing trace with hash 722307842, now seen corresponding path program 1 times [2020-11-09 17:17:05,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:05,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810940604] [2020-11-09 17:17:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:05,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810940604] [2020-11-09 17:17:05,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:05,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:17:05,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1857202069] [2020-11-09 17:17:05,465 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:05,466 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:05,467 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:17:05,467 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:05,467 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:05,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:17:05,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:05,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:17:05,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:17:05,468 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-11-09 17:17:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:05,591 INFO L93 Difference]: Finished difference Result 3381 states and 11559 transitions. [2020-11-09 17:17:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:17:05,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:17:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:05,620 INFO L225 Difference]: With dead ends: 3381 [2020-11-09 17:17:05,620 INFO L226 Difference]: Without dead ends: 3375 [2020-11-09 17:17:05,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:17:05,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2020-11-09 17:17:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 1966. [2020-11-09 17:17:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-11-09 17:17:05,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-11-09 17:17:05,765 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-11-09 17:17:05,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:05,765 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-11-09 17:17:05,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:17:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-11-09 17:17:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:17:05,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:05,766 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:05,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-09 17:17:05,766 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:05,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:05,767 INFO L82 PathProgramCache]: Analyzing trace with hash 916321331, now seen corresponding path program 1 times [2020-11-09 17:17:05,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:05,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552467061] [2020-11-09 17:17:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 17:17:05,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552467061] [2020-11-09 17:17:05,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:05,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:17:05,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [152338959] [2020-11-09 17:17:05,813 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:05,814 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:05,815 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 17:17:05,816 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:05,816 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:05,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:17:05,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:05,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:17:05,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:17:05,817 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-11-09 17:17:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:05,950 INFO L93 Difference]: Finished difference Result 3684 states and 12737 transitions. [2020-11-09 17:17:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:17:05,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:17:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:05,983 INFO L225 Difference]: With dead ends: 3684 [2020-11-09 17:17:05,983 INFO L226 Difference]: Without dead ends: 3674 [2020-11-09 17:17:05,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:17:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-11-09 17:17:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 2200. [2020-11-09 17:17:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-11-09 17:17:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-11-09 17:17:06,102 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-11-09 17:17:06,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:06,102 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-11-09 17:17:06,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:17:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-11-09 17:17:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:17:06,103 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:06,103 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:06,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-09 17:17:06,104 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1895531711, now seen corresponding path program 1 times [2020-11-09 17:17:06,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:06,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886651877] [2020-11-09 17:17:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:06,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886651877] [2020-11-09 17:17:06,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379684787] [2020-11-09 17:17:06,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-11-09 17:17:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:06,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:17:06,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:06,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:06,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:17:06,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1447180154] [2020-11-09 17:17:06,414 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:06,415 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:06,419 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 17:17:06,419 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:06,535 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [25171#(<= (+ thr2Thread1of4ForFork1_~t~0 2) ~n~0), 25172#(<= ~x~0 (+ ULTIMATE.start_main_~i~0 1)), 25173#(and (<= thr2Thread1of4ForFork1_~t~0 ULTIMATE.start_main_~i~0) (= thr2Thread1of4ForFork1_~t~0 0)), 25174#(<= (+ ~x~0 2) ~n~0)] [2020-11-09 17:17:06,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-09 17:17:06,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:06,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-09 17:17:06,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2020-11-09 17:17:06,537 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 14 states. [2020-11-09 17:17:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:07,361 INFO L93 Difference]: Finished difference Result 5261 states and 16798 transitions. [2020-11-09 17:17:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-09 17:17:07,362 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-09 17:17:07,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:07,389 INFO L225 Difference]: With dead ends: 5261 [2020-11-09 17:17:07,389 INFO L226 Difference]: Without dead ends: 5248 [2020-11-09 17:17:07,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2020-11-09 17:17:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2020-11-09 17:17:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 2157. [2020-11-09 17:17:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-11-09 17:17:07,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-11-09 17:17:07,537 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-11-09 17:17:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:07,538 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-11-09 17:17:07,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-09 17:17:07,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-11-09 17:17:07,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:17:07,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:07,539 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:07,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-09 17:17:07,752 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash 116504769, now seen corresponding path program 2 times [2020-11-09 17:17:07,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:07,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740595551] [2020-11-09 17:17:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:07,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740595551] [2020-11-09 17:17:07,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805738726] [2020-11-09 17:17:07,839 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 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 [2020-11-09 17:17:07,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:17:07,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:07,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:17:07,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:08,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:08,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:17:08,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [26815335] [2020-11-09 17:17:08,038 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:08,040 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:08,044 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 17:17:08,045 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:08,045 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:08,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:17:08,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:08,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:17:08,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 17:17:08,046 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 10 states. [2020-11-09 17:17:08,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:08,674 INFO L93 Difference]: Finished difference Result 5224 states and 16850 transitions. [2020-11-09 17:17:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:17:08,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 17:17:08,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:08,696 INFO L225 Difference]: With dead ends: 5224 [2020-11-09 17:17:08,696 INFO L226 Difference]: Without dead ends: 5213 [2020-11-09 17:17:08,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:17:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2020-11-09 17:17:08,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 2035. [2020-11-09 17:17:08,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-11-09 17:17:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-11-09 17:17:08,819 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-11-09 17:17:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:08,819 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-11-09 17:17:08,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:17:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-11-09 17:17:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:17:08,821 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:08,821 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:09,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:09,037 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:09,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:09,038 INFO L82 PathProgramCache]: Analyzing trace with hash -111031878, now seen corresponding path program 1 times [2020-11-09 17:17:09,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:09,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462109314] [2020-11-09 17:17:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 17:17:09,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462109314] [2020-11-09 17:17:09,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:09,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:17:09,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1966051886] [2020-11-09 17:17:09,084 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:09,085 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:09,088 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 17:17:09,088 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:09,088 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:09,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:17:09,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:09,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:17:09,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:17:09,089 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-11-09 17:17:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:09,250 INFO L93 Difference]: Finished difference Result 3749 states and 13114 transitions. [2020-11-09 17:17:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:17:09,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:17:09,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:09,267 INFO L225 Difference]: With dead ends: 3749 [2020-11-09 17:17:09,267 INFO L226 Difference]: Without dead ends: 3734 [2020-11-09 17:17:09,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:17:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2020-11-09 17:17:09,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2281. [2020-11-09 17:17:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-11-09 17:17:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-11-09 17:17:09,391 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-11-09 17:17:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:09,392 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-11-09 17:17:09,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:17:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-11-09 17:17:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:17:09,394 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:09,394 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:09,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-09 17:17:09,394 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:09,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:09,395 INFO L82 PathProgramCache]: Analyzing trace with hash 502405576, now seen corresponding path program 1 times [2020-11-09 17:17:09,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:09,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040990494] [2020-11-09 17:17:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:09,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040990494] [2020-11-09 17:17:09,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125419438] [2020-11-09 17:17:09,517 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 [2020-11-09 17:17:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:09,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 17:17:09,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:09,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:09,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 17:17:09,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [53172905] [2020-11-09 17:17:09,818 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:09,820 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:09,826 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions. [2020-11-09 17:17:09,827 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:10,085 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [52568#(<= (+ thr2Thread1of4ForFork1_~t~0 3) ~n~0), 52569#(<= (+ thr2Thread1of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 52570#(<= (+ thr2Thread1of4ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 52571#(<= (+ ~x~0 3) ~n~0), 52572#(<= ~x~0 (+ ULTIMATE.start_main_~i~0 1)), 52573#(and (<= thr2Thread1of4ForFork1_~t~0 ULTIMATE.start_main_~i~0) (= thr2Thread1of4ForFork1_~t~0 0)), 52574#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:17:10,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 17:17:10,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:10,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 17:17:10,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2020-11-09 17:17:10,086 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 18 states. [2020-11-09 17:17:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:12,095 INFO L93 Difference]: Finished difference Result 5661 states and 18326 transitions. [2020-11-09 17:17:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-09 17:17:12,097 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2020-11-09 17:17:12,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:12,121 INFO L225 Difference]: With dead ends: 5661 [2020-11-09 17:17:12,121 INFO L226 Difference]: Without dead ends: 5639 [2020-11-09 17:17:12,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=719, Invalid=2941, Unknown=0, NotChecked=0, Total=3660 [2020-11-09 17:17:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2020-11-09 17:17:12,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 2305. [2020-11-09 17:17:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-11-09 17:17:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-11-09 17:17:12,292 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-11-09 17:17:12,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:12,293 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-11-09 17:17:12,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 17:17:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-11-09 17:17:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:17:12,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:12,298 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:12,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-09 17:17:12,511 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:12,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1372443465, now seen corresponding path program 1 times [2020-11-09 17:17:12,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:12,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080030325] [2020-11-09 17:17:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:12,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080030325] [2020-11-09 17:17:12,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267135364] [2020-11-09 17:17:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:17:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:12,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 17:17:12,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:12,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:12,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 17:17:12,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [162507353] [2020-11-09 17:17:12,910 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:12,912 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:12,916 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions. [2020-11-09 17:17:12,916 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:13,063 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [62988#(<= (+ thr2Thread2of4ForFork1_~t~0 3) ~n~0), 62989#(<= (+ thr2Thread2of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 62990#(<= (+ ~x~0 3) ~n~0), 62991#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:17:13,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-09 17:17:13,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:13,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-09 17:17:13,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:17:13,065 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 15 states. [2020-11-09 17:17:14,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:14,745 INFO L93 Difference]: Finished difference Result 5705 states and 18679 transitions. [2020-11-09 17:17:14,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-09 17:17:14,745 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-11-09 17:17:14,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:14,766 INFO L225 Difference]: With dead ends: 5705 [2020-11-09 17:17:14,766 INFO L226 Difference]: Without dead ends: 5676 [2020-11-09 17:17:14,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=543, Invalid=2109, Unknown=0, NotChecked=0, Total=2652 [2020-11-09 17:17:14,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2020-11-09 17:17:14,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 2299. [2020-11-09 17:17:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-11-09 17:17:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-11-09 17:17:14,899 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-11-09 17:17:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:14,899 INFO L481 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-11-09 17:17:14,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-09 17:17:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-11-09 17:17:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:17:14,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:14,901 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:15,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:15,115 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash 672543389, now seen corresponding path program 2 times [2020-11-09 17:17:15,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:15,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393511567] [2020-11-09 17:17:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:15,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:15,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393511567] [2020-11-09 17:17:15,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67605952] [2020-11-09 17:17:15,258 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 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 [2020-11-09 17:17:15,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:17:15,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:15,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:17:15,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:17:15,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:15,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 17:17:15,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1538542547] [2020-11-09 17:17:15,541 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:15,543 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:15,545 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 17:17:15,545 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:15,545 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:15,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 17:17:15,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:15,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 17:17:15,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 17:17:15,547 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 11 states. [2020-11-09 17:17:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:16,336 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-11-09 17:17:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:17:16,337 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 17:17:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:16,351 INFO L225 Difference]: With dead ends: 4934 [2020-11-09 17:17:16,351 INFO L226 Difference]: Without dead ends: 4917 [2020-11-09 17:17:16,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:17:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-11-09 17:17:16,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-11-09 17:17:16,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-11-09 17:17:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-11-09 17:17:16,489 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-11-09 17:17:16,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:16,489 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-11-09 17:17:16,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 17:17:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-11-09 17:17:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:17:16,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:16,491 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:16,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:16,705 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:16,706 INFO L82 PathProgramCache]: Analyzing trace with hash 672549000, now seen corresponding path program 2 times [2020-11-09 17:17:16,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:16,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944720071] [2020-11-09 17:17:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:16,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944720071] [2020-11-09 17:17:16,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983740504] [2020-11-09 17:17:16,828 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 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 [2020-11-09 17:17:16,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:17:16,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:16,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:17:16,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:17:17,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:17,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 17:17:17,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1686202626] [2020-11-09 17:17:17,102 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:17,104 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:17,107 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 17:17:17,107 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:17,108 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:17,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 17:17:17,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:17,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 17:17:17,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 17:17:17,109 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 11 states. [2020-11-09 17:17:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:17,934 INFO L93 Difference]: Finished difference Result 5685 states and 19422 transitions. [2020-11-09 17:17:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:17:17,943 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 17:17:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:17,960 INFO L225 Difference]: With dead ends: 5685 [2020-11-09 17:17:17,960 INFO L226 Difference]: Without dead ends: 5668 [2020-11-09 17:17:17,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:17:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5668 states. [2020-11-09 17:17:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5668 to 2150. [2020-11-09 17:17:18,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-11-09 17:17:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-11-09 17:17:18,079 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-11-09 17:17:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:18,080 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-11-09 17:17:18,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 17:17:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-11-09 17:17:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:18,082 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:18,082 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:18,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-09 17:17:18,297 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:18,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:18,298 INFO L82 PathProgramCache]: Analyzing trace with hash -269569723, now seen corresponding path program 1 times [2020-11-09 17:17:18,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:18,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878170932] [2020-11-09 17:17:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:17:18,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878170932] [2020-11-09 17:17:18,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225943089] [2020-11-09 17:17:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:17:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:18,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:18,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:18,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:18,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 17:17:18,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [77739224] [2020-11-09 17:17:18,794 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:18,796 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:18,805 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions. [2020-11-09 17:17:18,805 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:19,172 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [92995#(<= (+ thr2Thread2of4ForFork1_~t~0 2) ~n~0), 92997#(<= (+ ~x~0 2) ~n~0), 92996#(<= (+ thr2Thread2of4ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 92999#(<= (+ thr2Thread1of4ForFork1_~t~0 3) ~n~0), 92998#(<= (+ ~x~0 1) ULTIMATE.start_main_~i~0), 93001#(<= (+ thr2Thread1of4ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 93000#(<= (+ thr2Thread1of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 93003#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 93002#(<= (+ ~x~0 3) ~n~0), 93004#(and (<= thr2Thread1of4ForFork1_~t~0 ULTIMATE.start_main_~i~0) (= thr2Thread1of4ForFork1_~t~0 0))] [2020-11-09 17:17:19,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 17:17:19,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:19,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 17:17:19,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:17:19,173 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 22 states. [2020-11-09 17:17:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:27,427 INFO L93 Difference]: Finished difference Result 10390 states and 30626 transitions. [2020-11-09 17:17:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-11-09 17:17:27,428 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2020-11-09 17:17:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:27,447 INFO L225 Difference]: With dead ends: 10390 [2020-11-09 17:17:27,447 INFO L226 Difference]: Without dead ends: 10362 [2020-11-09 17:17:27,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9094 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3919, Invalid=21203, Unknown=0, NotChecked=0, Total=25122 [2020-11-09 17:17:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2020-11-09 17:17:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 2180. [2020-11-09 17:17:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-11-09 17:17:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 8393 transitions. [2020-11-09 17:17:27,608 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 8393 transitions. Word has length 21 [2020-11-09 17:17:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:27,608 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 8393 transitions. [2020-11-09 17:17:27,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 17:17:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 8393 transitions. [2020-11-09 17:17:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:27,610 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:27,610 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:27,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:27,824 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:27,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:27,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1775417131, now seen corresponding path program 2 times [2020-11-09 17:17:27,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:27,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113894187] [2020-11-09 17:17:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:27,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113894187] [2020-11-09 17:17:27,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796577972] [2020-11-09 17:17:27,947 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 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 [2020-11-09 17:17:28,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:17:28,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:28,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:28,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:28,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:28,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:17:28,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1930546256] [2020-11-09 17:17:28,327 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:28,330 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:28,336 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 17:17:28,336 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:28,591 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [108097#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 108096#(<= (+ ~x~0 3) ~n~0), 108091#(<= ~x~0 (+ ULTIMATE.start_main_~i~0 1)), 108093#(<= (+ thr2Thread1of4ForFork1_~t~0 3) ~n~0), 108092#(and (<= thr2Thread1of4ForFork1_~t~0 ULTIMATE.start_main_~i~0) (= thr2Thread1of4ForFork1_~t~0 0)), 108095#(<= (+ thr2Thread1of4ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 108094#(<= (+ thr2Thread1of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:17:28,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 17:17:28,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:28,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 17:17:28,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2020-11-09 17:17:28,592 INFO L87 Difference]: Start difference. First operand 2180 states and 8393 transitions. Second operand 20 states. [2020-11-09 17:17:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:33,812 INFO L93 Difference]: Finished difference Result 7560 states and 22845 transitions. [2020-11-09 17:17:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-11-09 17:17:33,812 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-11-09 17:17:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:33,828 INFO L225 Difference]: With dead ends: 7560 [2020-11-09 17:17:33,828 INFO L226 Difference]: Without dead ends: 7539 [2020-11-09 17:17:33,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3588 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1919, Invalid=9423, Unknown=0, NotChecked=0, Total=11342 [2020-11-09 17:17:33,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2020-11-09 17:17:33,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 2148. [2020-11-09 17:17:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2020-11-09 17:17:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 8262 transitions. [2020-11-09 17:17:33,944 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 8262 transitions. Word has length 21 [2020-11-09 17:17:33,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:33,945 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 8262 transitions. [2020-11-09 17:17:33,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 17:17:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 8262 transitions. [2020-11-09 17:17:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:33,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:33,947 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:34,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-09 17:17:34,155 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:34,156 INFO L82 PathProgramCache]: Analyzing trace with hash -258131359, now seen corresponding path program 3 times [2020-11-09 17:17:34,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:34,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238867487] [2020-11-09 17:17:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:34,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238867487] [2020-11-09 17:17:34,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480168071] [2020-11-09 17:17:34,286 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 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 [2020-11-09 17:17:34,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-09 17:17:34,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:34,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:34,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:34,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:34,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:17:34,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1469762785] [2020-11-09 17:17:34,648 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:34,650 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:34,657 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 17:17:34,658 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:34,948 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [120193#(or (<= (+ ~x~0 1) ~n~0) (<= ~n~0 ULTIMATE.start_main_~i~0)), 120192#(<= (+ ~x~0 3) ~n~0), 120195#(<= thr2Thread1of4ForFork1_~t~0 ULTIMATE.start_main_~i~0), 120194#(or (<= (+ ~x~0 1) ~n~0) (<= ~n~0 (+ ULTIMATE.start_main_~i~0 1))), 120197#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 120196#(<= (+ thr2Thread2of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 120191#(<= (+ thr2Thread2of4ForFork1_~t~0 3) ~n~0), 120190#(<= (+ ~x~0 2) ~n~0)] [2020-11-09 17:17:34,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 17:17:34,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:34,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 17:17:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2020-11-09 17:17:34,950 INFO L87 Difference]: Start difference. First operand 2148 states and 8262 transitions. Second operand 21 states. [2020-11-09 17:17:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:43,713 INFO L93 Difference]: Finished difference Result 9786 states and 29087 transitions. [2020-11-09 17:17:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2020-11-09 17:17:43,717 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2020-11-09 17:17:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:43,781 INFO L225 Difference]: With dead ends: 9786 [2020-11-09 17:17:43,781 INFO L226 Difference]: Without dead ends: 9770 [2020-11-09 17:17:43,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9495 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=3998, Invalid=21762, Unknown=0, NotChecked=0, Total=25760 [2020-11-09 17:17:43,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2020-11-09 17:17:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 2008. [2020-11-09 17:17:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-11-09 17:17:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-11-09 17:17:43,936 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-11-09 17:17:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:43,937 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-11-09 17:17:43,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 17:17:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-11-09 17:17:43,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:43,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:43,939 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:44,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-09 17:17:44,153 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:44,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:44,154 INFO L82 PathProgramCache]: Analyzing trace with hash -363208635, now seen corresponding path program 4 times [2020-11-09 17:17:44,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:44,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709570591] [2020-11-09 17:17:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:44,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709570591] [2020-11-09 17:17:44,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89565354] [2020-11-09 17:17:44,286 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 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 [2020-11-09 17:17:44,391 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 17:17:44,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:44,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:44,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:44,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:44,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:17:44,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1661888590] [2020-11-09 17:17:44,684 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:44,686 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:44,690 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions. [2020-11-09 17:17:44,690 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:44,843 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [134342#(<= (+ thr2Thread2of4ForFork1_~t~0 3) ~n~0), 134343#(<= (+ ~x~0 3) ~n~0), 134344#(<= (+ thr2Thread2of4ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 134345#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:17:44,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-09 17:17:44,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:44,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-09 17:17:44,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2020-11-09 17:17:44,846 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 17 states. [2020-11-09 17:17:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:49,629 INFO L93 Difference]: Finished difference Result 7307 states and 22070 transitions. [2020-11-09 17:17:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-11-09 17:17:49,635 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-11-09 17:17:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:49,651 INFO L225 Difference]: With dead ends: 7307 [2020-11-09 17:17:49,651 INFO L226 Difference]: Without dead ends: 7286 [2020-11-09 17:17:49,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1539, Invalid=7391, Unknown=0, NotChecked=0, Total=8930 [2020-11-09 17:17:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2020-11-09 17:17:49,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 1976. [2020-11-09 17:17:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-11-09 17:17:49,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-11-09 17:17:49,774 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-11-09 17:17:49,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:49,775 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-11-09 17:17:49,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-09 17:17:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-11-09 17:17:49,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:49,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:49,777 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:49,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-09 17:17:49,992 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:49,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:49,992 INFO L82 PathProgramCache]: Analyzing trace with hash 123808083, now seen corresponding path program 1 times [2020-11-09 17:17:49,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:49,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231624043] [2020-11-09 17:17:49,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 17:17:50,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231624043] [2020-11-09 17:17:50,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:50,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:17:50,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1149057342] [2020-11-09 17:17:50,070 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:50,072 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:50,076 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:17:50,077 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:50,077 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:50,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:17:50,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:50,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:17:50,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:17:50,078 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-11-09 17:17:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:50,238 INFO L93 Difference]: Finished difference Result 3496 states and 12265 transitions. [2020-11-09 17:17:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:17:50,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 17:17:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:50,251 INFO L225 Difference]: With dead ends: 3496 [2020-11-09 17:17:50,252 INFO L226 Difference]: Without dead ends: 3480 [2020-11-09 17:17:50,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:17:50,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2020-11-09 17:17:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2183. [2020-11-09 17:17:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-11-09 17:17:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-11-09 17:17:50,343 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-11-09 17:17:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:50,344 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-11-09 17:17:50,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:17:50,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-11-09 17:17:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:50,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:50,346 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:50,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-09 17:17:50,346 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash 2069103787, now seen corresponding path program 5 times [2020-11-09 17:17:50,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:50,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385644792] [2020-11-09 17:17:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:50,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385644792] [2020-11-09 17:17:50,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548405497] [2020-11-09 17:17:50,531 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_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 [2020-11-09 17:17:50,637 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-11-09 17:17:50,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:50,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:50,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:50,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:50,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:17:50,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [308687507] [2020-11-09 17:17:50,919 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:50,921 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:50,924 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:17:50,924 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:50,924 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:50,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 17:17:50,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:50,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 17:17:50,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:17:50,926 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 13 states. [2020-11-09 17:17:53,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:53,067 INFO L93 Difference]: Finished difference Result 6822 states and 21016 transitions. [2020-11-09 17:17:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-09 17:17:53,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 17:17:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:53,083 INFO L225 Difference]: With dead ends: 6822 [2020-11-09 17:17:53,084 INFO L226 Difference]: Without dead ends: 6811 [2020-11-09 17:17:53,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=764, Invalid=3268, Unknown=0, NotChecked=0, Total=4032 [2020-11-09 17:17:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6811 states. [2020-11-09 17:17:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6811 to 2096. [2020-11-09 17:17:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-11-09 17:17:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-11-09 17:17:53,249 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-11-09 17:17:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:53,249 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-11-09 17:17:53,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 17:17:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-11-09 17:17:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:17:53,252 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:53,252 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:53,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:53,466 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:53,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2074490347, now seen corresponding path program 6 times [2020-11-09 17:17:53,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:53,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337417182] [2020-11-09 17:17:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:53,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337417182] [2020-11-09 17:17:53,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118271092] [2020-11-09 17:17:53,619 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2020-11-09 17:17:53,725 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-11-09 17:17:53,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:17:53,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:17:53,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:17:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:53,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:17:53,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:17:53,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1894587288] [2020-11-09 17:17:53,995 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:53,998 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:54,003 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:17:54,003 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:54,003 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:54,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 17:17:54,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 17:17:54,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:17:54,004 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 13 states. [2020-11-09 17:17:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:56,045 INFO L93 Difference]: Finished difference Result 8632 states and 27326 transitions. [2020-11-09 17:17:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 17:17:56,046 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 17:17:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:56,073 INFO L225 Difference]: With dead ends: 8632 [2020-11-09 17:17:56,073 INFO L226 Difference]: Without dead ends: 8617 [2020-11-09 17:17:56,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=731, Invalid=3051, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 17:17:56,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2020-11-09 17:17:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 1965. [2020-11-09 17:17:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-11-09 17:17:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-11-09 17:17:56,228 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-11-09 17:17:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:56,228 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-11-09 17:17:56,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 17:17:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-11-09 17:17:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-09 17:17:56,231 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:56,231 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:17:56,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:17:56,445 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 17:17:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:56,445 INFO L82 PathProgramCache]: Analyzing trace with hash -463541898, now seen corresponding path program 1 times [2020-11-09 17:17:56,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:56,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132459132] [2020-11-09 17:17:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:17:56,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:17:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:17:56,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:17:56,500 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:17:56,500 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:17:56,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-09 17:17:56,501 WARN L386 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 17:17:56,501 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-11-09 17:17:56,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,524 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,526 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,556 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,562 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,562 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,562 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,562 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,564 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,565 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,567 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,567 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,568 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,568 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,569 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,569 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,570 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,570 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,570 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,571 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:56,571 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:17:56,572 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-09 17:17:56,572 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:17:56,572 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:17:56,572 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:17:56,572 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:17:56,573 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:17:56,573 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:17:56,573 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:17:56,573 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:17:56,575 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:17:56,575 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 162 transitions, 414 flow [2020-11-09 17:17:56,576 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 162 transitions, 414 flow [2020-11-09 17:17:56,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 162 transitions, 414 flow [2020-11-09 17:17:56,604 INFO L129 PetriNetUnfolder]: 9/168 cut-off events. [2020-11-09 17:17:56,605 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-11-09 17:17:56,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 168 events. 9/168 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 195. Up to 12 conditions per place. [2020-11-09 17:17:56,613 INFO L116 LiptonReduction]: Number of co-enabled transitions 3390 [2020-11-09 17:18:00,598 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-09 17:18:00,780 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-11-09 17:18:01,703 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-11-09 17:18:02,587 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-11-09 17:18:02,890 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-11-09 17:18:03,912 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 17:18:04,055 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 17:18:04,437 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-11-09 17:18:04,586 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-09 17:18:04,842 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-09 17:18:05,119 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 17:18:05,312 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 17:18:05,520 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-09 17:18:05,721 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 17:18:05,725 INFO L131 LiptonReduction]: Checked pairs total: 4734 [2020-11-09 17:18:05,725 INFO L133 LiptonReduction]: Total number of compositions: 175 [2020-11-09 17:18:05,726 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-11-09 17:18:06,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-11-09 17:18:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-11-09 17:18:06,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 17:18:06,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:06,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 17:18:06,226 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:06,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:06,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1424171, now seen corresponding path program 1 times [2020-11-09 17:18:06,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:06,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26795523] [2020-11-09 17:18:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:06,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26795523] [2020-11-09 17:18:06,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:18:06,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:18:06,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [696950038] [2020-11-09 17:18:06,248 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:06,249 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:06,249 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 17:18:06,249 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:06,250 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:06,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:18:06,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:06,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:18:06,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:18:06,250 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-11-09 17:18:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:06,348 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-11-09 17:18:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:18:06,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 17:18:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:06,368 INFO L225 Difference]: With dead ends: 5844 [2020-11-09 17:18:06,368 INFO L226 Difference]: Without dead ends: 5479 [2020-11-09 17:18:06,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:18:06,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-11-09 17:18:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-11-09 17:18:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-11-09 17:18:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-11-09 17:18:06,596 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-11-09 17:18:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:06,596 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-11-09 17:18:06,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:18:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-11-09 17:18:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:18:06,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:06,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:06,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-09 17:18:06,597 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:06,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:06,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2117777747, now seen corresponding path program 1 times [2020-11-09 17:18:06,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:06,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597437622] [2020-11-09 17:18:06,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:06,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597437622] [2020-11-09 17:18:06,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:18:06,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:18:06,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1032257398] [2020-11-09 17:18:06,648 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:06,648 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:06,649 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:18:06,649 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:06,649 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:06,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:18:06,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:06,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:18:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:18:06,650 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-11-09 17:18:06,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:06,956 INFO L93 Difference]: Finished difference Result 11373 states and 46632 transitions. [2020-11-09 17:18:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:18:06,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 17:18:06,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:06,988 INFO L225 Difference]: With dead ends: 11373 [2020-11-09 17:18:06,988 INFO L226 Difference]: Without dead ends: 11366 [2020-11-09 17:18:06,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:18:07,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2020-11-09 17:18:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 6331. [2020-11-09 17:18:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-11-09 17:18:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-11-09 17:18:07,383 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-11-09 17:18:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:07,383 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-11-09 17:18:07,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:18:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-11-09 17:18:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:18:07,384 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:07,384 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:07,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-09 17:18:07,384 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:07,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:07,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2072429311, now seen corresponding path program 1 times [2020-11-09 17:18:07,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:07,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543853080] [2020-11-09 17:18:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 17:18:07,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543853080] [2020-11-09 17:18:07,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:18:07,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:18:07,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [541102656] [2020-11-09 17:18:07,440 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:07,441 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:07,443 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 17:18:07,443 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:07,443 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:07,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:18:07,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:07,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:18:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:18:07,446 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-11-09 17:18:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:07,690 INFO L93 Difference]: Finished difference Result 12785 states and 53129 transitions. [2020-11-09 17:18:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:18:07,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:18:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:07,728 INFO L225 Difference]: With dead ends: 12785 [2020-11-09 17:18:07,728 INFO L226 Difference]: Without dead ends: 12772 [2020-11-09 17:18:07,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:18:07,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2020-11-09 17:18:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 7391. [2020-11-09 17:18:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-11-09 17:18:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-11-09 17:18:08,212 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-11-09 17:18:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:08,213 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-11-09 17:18:08,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:18:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-11-09 17:18:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:18:08,213 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:08,213 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:08,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-09 17:18:08,214 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:08,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1017397189, now seen corresponding path program 1 times [2020-11-09 17:18:08,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:08,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161900544] [2020-11-09 17:18:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:08,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:08,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161900544] [2020-11-09 17:18:08,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461449283] [2020-11-09 17:18:08,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:18:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:08,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:18:08,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:08,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:08,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:18:08,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [448222288] [2020-11-09 17:18:08,631 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:08,632 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:08,635 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 17:18:08,635 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:08,835 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [81043#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 81042#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ~n~0), 81045#(<= (+ ~x~0 2) ~n~0), 81044#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 81047#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 81046#(<= (+ ~x~0 1) ULTIMATE.start_main_~i~0)] [2020-11-09 17:18:08,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 17:18:08,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:08,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 17:18:08,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:18:08,836 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 16 states. [2020-11-09 17:18:10,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:10,824 INFO L93 Difference]: Finished difference Result 22290 states and 85387 transitions. [2020-11-09 17:18:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 17:18:10,825 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2020-11-09 17:18:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:10,893 INFO L225 Difference]: With dead ends: 22290 [2020-11-09 17:18:10,893 INFO L226 Difference]: Without dead ends: 22265 [2020-11-09 17:18:10,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=413, Invalid=1939, Unknown=0, NotChecked=0, Total=2352 [2020-11-09 17:18:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22265 states. [2020-11-09 17:18:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 7303. [2020-11-09 17:18:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-11-09 17:18:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-11-09 17:18:11,416 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-11-09 17:18:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:11,416 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-11-09 17:18:11,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 17:18:11,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-11-09 17:18:11,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:18:11,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:11,417 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:11,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-11-09 17:18:11,622 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:11,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:11,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1260267579, now seen corresponding path program 2 times [2020-11-09 17:18:11,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:11,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212871693] [2020-11-09 17:18:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:11,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212871693] [2020-11-09 17:18:11,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850071913] [2020-11-09 17:18:11,889 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 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 [2020-11-09 17:18:12,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:18:12,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:12,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:18:12,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:12,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:12,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 17:18:12,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1375986868] [2020-11-09 17:18:12,173 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:12,174 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:12,177 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 17:18:12,177 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:12,177 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:12,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:18:12,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:12,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:18:12,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 17:18:12,179 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 10 states. [2020-11-09 17:18:13,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:13,121 INFO L93 Difference]: Finished difference Result 19533 states and 76146 transitions. [2020-11-09 17:18:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:18:13,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 17:18:13,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:13,183 INFO L225 Difference]: With dead ends: 19533 [2020-11-09 17:18:13,183 INFO L226 Difference]: Without dead ends: 19519 [2020-11-09 17:18:13,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:18:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19519 states. [2020-11-09 17:18:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19519 to 7048. [2020-11-09 17:18:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-11-09 17:18:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-11-09 17:18:13,669 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-11-09 17:18:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:13,669 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-11-09 17:18:13,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:18:13,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-11-09 17:18:13,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:18:13,670 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:13,670 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:13,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:18:13,876 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:13,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1517776040, now seen corresponding path program 1 times [2020-11-09 17:18:13,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:13,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153043961] [2020-11-09 17:18:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-09 17:18:13,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153043961] [2020-11-09 17:18:13,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:18:13,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:18:13,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [126037973] [2020-11-09 17:18:13,926 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:13,928 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:13,930 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 17:18:13,931 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:13,931 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:13,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:18:13,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:13,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:18:13,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:18:13,932 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-11-09 17:18:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:14,323 INFO L93 Difference]: Finished difference Result 13942 states and 58799 transitions. [2020-11-09 17:18:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:18:14,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:18:14,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:14,401 INFO L225 Difference]: With dead ends: 13942 [2020-11-09 17:18:14,401 INFO L226 Difference]: Without dead ends: 13920 [2020-11-09 17:18:14,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:18:14,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13920 states. [2020-11-09 17:18:14,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13920 to 8342. [2020-11-09 17:18:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-11-09 17:18:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-11-09 17:18:14,813 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-11-09 17:18:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:14,813 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-11-09 17:18:14,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:18:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-11-09 17:18:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:18:14,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:14,815 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:14,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-09 17:18:14,815 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:14,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1852718366, now seen corresponding path program 1 times [2020-11-09 17:18:14,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:14,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36302231] [2020-11-09 17:18:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:14,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36302231] [2020-11-09 17:18:14,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66274958] [2020-11-09 17:18:14,948 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 [2020-11-09 17:18:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:15,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 17:18:15,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:15,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:15,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 17:18:15,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [213797851] [2020-11-09 17:18:15,480 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:15,483 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:15,489 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions. [2020-11-09 17:18:15,489 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:15,791 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [182422#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ~n~0), 182423#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 182426#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 182427#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 182424#(<= (+ ~x~0 3) ~n~0), 182425#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 182428#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0))] [2020-11-09 17:18:15,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 17:18:15,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:15,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 17:18:15,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2020-11-09 17:18:15,793 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 18 states. [2020-11-09 17:18:18,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:18,242 INFO L93 Difference]: Finished difference Result 22461 states and 87886 transitions. [2020-11-09 17:18:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-09 17:18:18,243 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2020-11-09 17:18:18,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:18,311 INFO L225 Difference]: With dead ends: 22461 [2020-11-09 17:18:18,311 INFO L226 Difference]: Without dead ends: 22428 [2020-11-09 17:18:18,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=592, Invalid=2948, Unknown=0, NotChecked=0, Total=3540 [2020-11-09 17:18:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22428 states. [2020-11-09 17:18:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22428 to 8452. [2020-11-09 17:18:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-11-09 17:18:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-11-09 17:18:18,946 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-11-09 17:18:18,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:18,946 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-11-09 17:18:18,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 17:18:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-11-09 17:18:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:18:18,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:18,947 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:19,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-09 17:18:19,148 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:19,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1279905423, now seen corresponding path program 1 times [2020-11-09 17:18:19,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:19,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243634920] [2020-11-09 17:18:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:19,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243634920] [2020-11-09 17:18:19,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666151112] [2020-11-09 17:18:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:18:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:19,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 17:18:19,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:19,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:19,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 17:18:19,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1606005536] [2020-11-09 17:18:19,606 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:19,608 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:19,612 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions. [2020-11-09 17:18:19,612 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:19,764 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [221935#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 221934#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ~n~0), 221938#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 221937#(<= (+ ~x~0 3) ~n~0), 221936#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0)] [2020-11-09 17:18:19,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 17:18:19,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:19,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 17:18:19,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-11-09 17:18:19,765 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 16 states. [2020-11-09 17:18:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:22,276 INFO L93 Difference]: Finished difference Result 23160 states and 91054 transitions. [2020-11-09 17:18:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-09 17:18:22,276 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-11-09 17:18:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:22,348 INFO L225 Difference]: With dead ends: 23160 [2020-11-09 17:18:22,348 INFO L226 Difference]: Without dead ends: 23117 [2020-11-09 17:18:22,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=605, Invalid=2475, Unknown=0, NotChecked=0, Total=3080 [2020-11-09 17:18:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2020-11-09 17:18:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 8480. [2020-11-09 17:18:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-11-09 17:18:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-11-09 17:18:22,934 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-11-09 17:18:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:22,935 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-11-09 17:18:22,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 17:18:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-11-09 17:18:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:18:22,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:22,936 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:23,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-11-09 17:18:23,136 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:23,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:23,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1706062769, now seen corresponding path program 2 times [2020-11-09 17:18:23,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:23,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126725515] [2020-11-09 17:18:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:23,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126725515] [2020-11-09 17:18:23,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985797295] [2020-11-09 17:18:23,260 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 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 [2020-11-09 17:18:23,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:18:23,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:23,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:18:23,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:18:23,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:23,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 17:18:23,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1875316204] [2020-11-09 17:18:23,567 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:23,568 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:23,571 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 17:18:23,571 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:23,571 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:23,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 17:18:23,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:23,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 17:18:23,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 17:18:23,572 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 11 states. [2020-11-09 17:18:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:24,713 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-11-09 17:18:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:18:24,714 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 17:18:24,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:24,769 INFO L225 Difference]: With dead ends: 19852 [2020-11-09 17:18:24,770 INFO L226 Difference]: Without dead ends: 19827 [2020-11-09 17:18:24,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:18:24,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-11-09 17:18:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-11-09 17:18:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-11-09 17:18:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-11-09 17:18:25,310 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-11-09 17:18:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:25,310 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-11-09 17:18:25,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 17:18:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-11-09 17:18:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 17:18:25,311 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:25,311 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:25,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:18:25,512 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:25,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:25,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1706096094, now seen corresponding path program 2 times [2020-11-09 17:18:25,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:25,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651947816] [2020-11-09 17:18:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:25,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651947816] [2020-11-09 17:18:25,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160863619] [2020-11-09 17:18:25,641 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 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 [2020-11-09 17:18:25,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:18:25,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:25,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:18:25,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:18:25,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:25,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 17:18:25,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [62633020] [2020-11-09 17:18:25,951 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:25,953 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:25,955 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 17:18:25,956 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:25,956 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:18:25,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 17:18:25,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:25,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 17:18:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 17:18:25,957 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 11 states. [2020-11-09 17:18:27,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:27,201 INFO L93 Difference]: Finished difference Result 22539 states and 92825 transitions. [2020-11-09 17:18:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 17:18:27,202 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 17:18:27,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:27,275 INFO L225 Difference]: With dead ends: 22539 [2020-11-09 17:18:27,275 INFO L226 Difference]: Without dead ends: 22514 [2020-11-09 17:18:27,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:18:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22514 states. [2020-11-09 17:18:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22514 to 8317. [2020-11-09 17:18:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-11-09 17:18:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-11-09 17:18:27,930 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-11-09 17:18:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:27,930 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-11-09 17:18:27,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 17:18:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-11-09 17:18:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:18:27,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:27,936 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:28,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-11-09 17:18:28,148 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:28,150 INFO L82 PathProgramCache]: Analyzing trace with hash -640122441, now seen corresponding path program 1 times [2020-11-09 17:18:28,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:28,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093104926] [2020-11-09 17:18:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:18:28,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093104926] [2020-11-09 17:18:28,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521773290] [2020-11-09 17:18:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:18:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:28,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:18:28,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:28,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:28,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 17:18:28,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1738272857] [2020-11-09 17:18:28,708 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:28,710 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:28,717 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions. [2020-11-09 17:18:28,717 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:29,284 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 11 new interpolants: [338197#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ~n~0), 338199#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 338198#(<= (+ ~x~0 2) ~n~0), 338205#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 338204#(<= (+ ~x~0 3) ~n~0), 338207#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 338206#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 338201#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ~n~0), 338200#(<= (+ ~x~0 1) ULTIMATE.start_main_~i~0), 338203#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 338202#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:18:29,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-09 17:18:29,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:29,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-09 17:18:29,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2020-11-09 17:18:29,286 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 23 states. [2020-11-09 17:18:37,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:37,592 INFO L93 Difference]: Finished difference Result 43908 states and 158627 transitions. [2020-11-09 17:18:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-11-09 17:18:37,593 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 21 [2020-11-09 17:18:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:37,745 INFO L225 Difference]: With dead ends: 43908 [2020-11-09 17:18:37,746 INFO L226 Difference]: Without dead ends: 43868 [2020-11-09 17:18:37,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7956 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3380, Invalid=18970, Unknown=0, NotChecked=0, Total=22350 [2020-11-09 17:18:37,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43868 states. [2020-11-09 17:18:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43868 to 8404. [2020-11-09 17:18:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8404 states. [2020-11-09 17:18:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 38687 transitions. [2020-11-09 17:18:38,448 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 38687 transitions. Word has length 21 [2020-11-09 17:18:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:38,448 INFO L481 AbstractCegarLoop]: Abstraction has 8404 states and 38687 transitions. [2020-11-09 17:18:38,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-09 17:18:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 38687 transitions. [2020-11-09 17:18:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:18:38,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:38,450 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:38,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-11-09 17:18:38,652 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:38,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1949121545, now seen corresponding path program 2 times [2020-11-09 17:18:38,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:38,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080591306] [2020-11-09 17:18:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:38,988 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-11-09 17:18:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:39,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080591306] [2020-11-09 17:18:39,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039527190] [2020-11-09 17:18:39,053 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 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 [2020-11-09 17:18:39,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:18:39,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:39,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:18:39,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:39,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:39,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:18:39,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [888582461] [2020-11-09 17:18:39,508 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:39,510 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:39,517 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 17:18:39,518 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:39,878 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [399246#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 399244#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 399245#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 399242#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 399243#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 399240#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ~n~0), 399241#(<= (+ ~x~0 3) ~n~0)] [2020-11-09 17:18:39,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 17:18:39,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:39,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 17:18:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2020-11-09 17:18:39,879 INFO L87 Difference]: Start difference. First operand 8404 states and 38687 transitions. Second operand 20 states. [2020-11-09 17:18:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:45,992 INFO L93 Difference]: Finished difference Result 35915 states and 131368 transitions. [2020-11-09 17:18:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-11-09 17:18:45,993 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-11-09 17:18:45,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:46,105 INFO L225 Difference]: With dead ends: 35915 [2020-11-09 17:18:46,105 INFO L226 Difference]: Without dead ends: 35884 [2020-11-09 17:18:46,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4092 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1882, Invalid=10550, Unknown=0, NotChecked=0, Total=12432 [2020-11-09 17:18:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35884 states. [2020-11-09 17:18:46,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35884 to 8291. [2020-11-09 17:18:46,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8291 states. [2020-11-09 17:18:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8291 states to 8291 states and 38135 transitions. [2020-11-09 17:18:46,825 INFO L78 Accepts]: Start accepts. Automaton has 8291 states and 38135 transitions. Word has length 21 [2020-11-09 17:18:46,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:46,826 INFO L481 AbstractCegarLoop]: Abstraction has 8291 states and 38135 transitions. [2020-11-09 17:18:46,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 17:18:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8291 states and 38135 transitions. [2020-11-09 17:18:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:18:46,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:46,832 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:47,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:18:47,046 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash 595859895, now seen corresponding path program 3 times [2020-11-09 17:18:47,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:47,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537297794] [2020-11-09 17:18:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:47,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537297794] [2020-11-09 17:18:47,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582692438] [2020-11-09 17:18:47,199 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 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 [2020-11-09 17:18:47,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-09 17:18:47,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:47,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:18:47,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:47,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:47,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 17:18:47,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1466526727] [2020-11-09 17:18:47,740 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:47,742 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:47,747 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 17:18:47,747 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:18:48,121 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 9 new interpolants: [451990#(<= (+ ~x~0 2) ~n~0), 451991#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ~n~0), 451989#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ~n~0), 451996#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 451997#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 451994#(<= (+ ~x~0 1) ULTIMATE.start_main_~i~0), 451995#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 451992#(<= (+ ~x~0 3) ~n~0), 451993#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0)] [2020-11-09 17:18:48,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 17:18:48,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:18:48,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 17:18:48,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2020-11-09 17:18:48,122 INFO L87 Difference]: Start difference. First operand 8291 states and 38135 transitions. Second operand 21 states. [2020-11-09 17:18:57,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:18:57,974 INFO L93 Difference]: Finished difference Result 46520 states and 166387 transitions. [2020-11-09 17:18:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2020-11-09 17:18:57,976 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2020-11-09 17:18:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:18:58,111 INFO L225 Difference]: With dead ends: 46520 [2020-11-09 17:18:58,111 INFO L226 Difference]: Without dead ends: 46496 [2020-11-09 17:18:58,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9094 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=3978, Invalid=21144, Unknown=0, NotChecked=0, Total=25122 [2020-11-09 17:18:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46496 states. [2020-11-09 17:18:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46496 to 7861. [2020-11-09 17:18:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-11-09 17:18:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-11-09 17:18:59,075 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-11-09 17:18:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:18:59,075 INFO L481 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-11-09 17:18:59,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 17:18:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-11-09 17:18:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:18:59,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:18:59,077 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:18:59,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-11-09 17:18:59,283 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:18:59,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:18:59,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1628474953, now seen corresponding path program 4 times [2020-11-09 17:18:59,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:18:59,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221402050] [2020-11-09 17:18:59,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:18:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:18:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:59,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221402050] [2020-11-09 17:18:59,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620399372] [2020-11-09 17:18:59,448 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 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 [2020-11-09 17:18:59,573 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 17:18:59,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:18:59,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:18:59,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:18:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:18:59,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:18:59,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:18:59,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1279080295] [2020-11-09 17:18:59,871 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:18:59,873 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:18:59,879 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions. [2020-11-09 17:18:59,879 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:00,079 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [514582#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 514581#(<= (+ ~x~0 3) ~n~0), 514580#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 514579#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 514578#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ~n~0)] [2020-11-09 17:19:00,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 17:19:00,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:00,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 17:19:00,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2020-11-09 17:19:00,081 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 18 states. [2020-11-09 17:19:02,998 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-11-09 17:19:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:06,292 INFO L93 Difference]: Finished difference Result 34092 states and 124290 transitions. [2020-11-09 17:19:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-11-09 17:19:06,293 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 21 [2020-11-09 17:19:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:06,394 INFO L225 Difference]: With dead ends: 34092 [2020-11-09 17:19:06,394 INFO L226 Difference]: Without dead ends: 34061 [2020-11-09 17:19:06,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3408 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1731, Invalid=8775, Unknown=0, NotChecked=0, Total=10506 [2020-11-09 17:19:06,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34061 states. [2020-11-09 17:19:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34061 to 7748. [2020-11-09 17:19:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-11-09 17:19:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-11-09 17:19:07,032 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-11-09 17:19:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:07,032 INFO L481 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-11-09 17:19:07,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 17:19:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-11-09 17:19:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:19:07,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:07,033 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:07,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:07,234 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1151196169, now seen corresponding path program 5 times [2020-11-09 17:19:07,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:07,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899246923] [2020-11-09 17:19:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:07,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899246923] [2020-11-09 17:19:07,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046786833] [2020-11-09 17:19:07,407 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2020-11-09 17:19:07,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-11-09 17:19:07,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:19:07,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:19:07,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:07,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:07,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:19:07,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [647783385] [2020-11-09 17:19:07,847 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:07,849 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:07,852 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:19:07,852 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:07,852 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:07,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 17:19:07,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:07,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 17:19:07,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:19:07,853 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 13 states. [2020-11-09 17:19:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:10,661 INFO L93 Difference]: Finished difference Result 29794 states and 111014 transitions. [2020-11-09 17:19:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-09 17:19:10,662 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 17:19:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:10,744 INFO L225 Difference]: With dead ends: 29794 [2020-11-09 17:19:10,745 INFO L226 Difference]: Without dead ends: 29782 [2020-11-09 17:19:10,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=764, Invalid=3268, Unknown=0, NotChecked=0, Total=4032 [2020-11-09 17:19:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29782 states. [2020-11-09 17:19:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29782 to 7526. [2020-11-09 17:19:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7526 states. [2020-11-09 17:19:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 34524 transitions. [2020-11-09 17:19:11,369 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 34524 transitions. Word has length 21 [2020-11-09 17:19:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:11,369 INFO L481 AbstractCegarLoop]: Abstraction has 7526 states and 34524 transitions. [2020-11-09 17:19:11,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 17:19:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 34524 transitions. [2020-11-09 17:19:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:19:11,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:11,370 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:11,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-11-09 17:19:11,571 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:11,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:11,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1119204169, now seen corresponding path program 6 times [2020-11-09 17:19:11,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:11,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342262253] [2020-11-09 17:19:11,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:11,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342262253] [2020-11-09 17:19:11,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244938012] [2020-11-09 17:19:11,750 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2020-11-09 17:19:11,875 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-11-09 17:19:11,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:19:11,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:19:11,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:12,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:12,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 17:19:12,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [734766339] [2020-11-09 17:19:12,174 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:12,176 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:12,180 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:19:12,181 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:12,181 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:12,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 17:19:12,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:12,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 17:19:12,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 17:19:12,182 INFO L87 Difference]: Start difference. First operand 7526 states and 34524 transitions. Second operand 13 states. [2020-11-09 17:19:13,639 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-09 17:19:14,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:14,944 INFO L93 Difference]: Finished difference Result 34727 states and 132612 transitions. [2020-11-09 17:19:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 17:19:14,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 17:19:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:15,054 INFO L225 Difference]: With dead ends: 34727 [2020-11-09 17:19:15,055 INFO L226 Difference]: Without dead ends: 34710 [2020-11-09 17:19:15,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=731, Invalid=3051, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 17:19:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34710 states. [2020-11-09 17:19:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34710 to 7221. [2020-11-09 17:19:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7221 states. [2020-11-09 17:19:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 33268 transitions. [2020-11-09 17:19:15,853 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 33268 transitions. Word has length 21 [2020-11-09 17:19:15,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:15,853 INFO L481 AbstractCegarLoop]: Abstraction has 7221 states and 33268 transitions. [2020-11-09 17:19:15,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 17:19:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 33268 transitions. [2020-11-09 17:19:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 17:19:15,854 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:15,854 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:16,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-11-09 17:19:16,055 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash -721565217, now seen corresponding path program 1 times [2020-11-09 17:19:16,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:16,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031965518] [2020-11-09 17:19:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-09 17:19:16,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031965518] [2020-11-09 17:19:16,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:19:16,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:19:16,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [601877530] [2020-11-09 17:19:16,107 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:16,109 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:16,113 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 17:19:16,113 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:16,113 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:16,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:19:16,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:16,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:19:16,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:19:16,114 INFO L87 Difference]: Start difference. First operand 7221 states and 33268 transitions. Second operand 5 states. [2020-11-09 17:19:16,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:16,363 INFO L93 Difference]: Finished difference Result 14122 states and 60315 transitions. [2020-11-09 17:19:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:19:16,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 17:19:16,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:16,407 INFO L225 Difference]: With dead ends: 14122 [2020-11-09 17:19:16,407 INFO L226 Difference]: Without dead ends: 14091 [2020-11-09 17:19:16,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:19:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14091 states. [2020-11-09 17:19:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14091 to 8573. [2020-11-09 17:19:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-11-09 17:19:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-11-09 17:19:16,953 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-11-09 17:19:16,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:16,953 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-11-09 17:19:16,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:19:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-11-09 17:19:16,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:16,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:16,955 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:16,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-11-09 17:19:16,955 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:16,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:16,955 INFO L82 PathProgramCache]: Analyzing trace with hash -70442843, now seen corresponding path program 1 times [2020-11-09 17:19:16,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:16,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975318332] [2020-11-09 17:19:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:17,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975318332] [2020-11-09 17:19:17,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113395927] [2020-11-09 17:19:17,104 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 [2020-11-09 17:19:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:17,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 17:19:17,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:17,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:17,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 17:19:17,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [453272049] [2020-11-09 17:19:17,523 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:17,525 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:17,532 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 71 transitions. [2020-11-09 17:19:17,532 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:18,020 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [690026#(<= (+ ~x~0 4) ~n~0), 690027#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 690024#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 690025#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 690030#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 690028#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 690029#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 690023#(<= (+ thr2Thread1of5ForFork1_~t~0 4) ~n~0)] [2020-11-09 17:19:18,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 17:19:18,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:18,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 17:19:18,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2020-11-09 17:19:18,022 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 20 states. [2020-11-09 17:19:21,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:21,384 INFO L93 Difference]: Finished difference Result 22923 states and 91185 transitions. [2020-11-09 17:19:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 17:19:21,385 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2020-11-09 17:19:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:21,453 INFO L225 Difference]: With dead ends: 22923 [2020-11-09 17:19:21,453 INFO L226 Difference]: Without dead ends: 22881 [2020-11-09 17:19:21,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=734, Invalid=3556, Unknown=0, NotChecked=0, Total=4290 [2020-11-09 17:19:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22881 states. [2020-11-09 17:19:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22881 to 8847. [2020-11-09 17:19:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-11-09 17:19:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-11-09 17:19:22,006 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-11-09 17:19:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:22,006 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-11-09 17:19:22,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 17:19:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-11-09 17:19:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:22,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:22,009 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:22,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-11-09 17:19:22,210 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1198738568, now seen corresponding path program 1 times [2020-11-09 17:19:22,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:22,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858705556] [2020-11-09 17:19:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:22,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858705556] [2020-11-09 17:19:22,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572038281] [2020-11-09 17:19:22,361 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 [2020-11-09 17:19:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:22,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 17:19:22,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:22,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:22,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 17:19:22,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1992427348] [2020-11-09 17:19:22,776 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:22,778 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:22,785 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 55 transitions. [2020-11-09 17:19:22,786 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:23,065 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [730811#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 730810#(<= (+ ~x~0 4) ~n~0), 730809#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 730808#(<= (+ thr2Thread2of5ForFork1_~t~0 4) ~n~0), 730813#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 730812#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:19:23,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 17:19:23,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:23,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 17:19:23,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2020-11-09 17:19:23,067 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 18 states. [2020-11-09 17:19:26,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:26,528 INFO L93 Difference]: Finished difference Result 23928 states and 95439 transitions. [2020-11-09 17:19:26,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-09 17:19:26,529 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2020-11-09 17:19:26,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:26,612 INFO L225 Difference]: With dead ends: 23928 [2020-11-09 17:19:26,612 INFO L226 Difference]: Without dead ends: 23880 [2020-11-09 17:19:26,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=766, Invalid=3016, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 17:19:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23880 states. [2020-11-09 17:19:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23880 to 9115. [2020-11-09 17:19:27,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-11-09 17:19:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-11-09 17:19:27,225 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-11-09 17:19:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:27,225 INFO L481 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-11-09 17:19:27,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 17:19:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-11-09 17:19:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:27,227 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:27,228 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:27,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:27,429 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:27,430 INFO L82 PathProgramCache]: Analyzing trace with hash 220660185, now seen corresponding path program 1 times [2020-11-09 17:19:27,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:27,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091641198] [2020-11-09 17:19:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:27,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091641198] [2020-11-09 17:19:27,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835806106] [2020-11-09 17:19:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-09 17:19:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:27,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 17:19:27,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:27,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:27,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 17:19:27,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1951760539] [2020-11-09 17:19:27,967 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:27,969 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:27,973 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 39 transitions. [2020-11-09 17:19:27,974 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:28,174 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 5 new interpolants: [773131#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 773130#(<= (+ ~x~0 4) ~n~0), 773129#(<= (+ thr2Thread3of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 773128#(<= (+ thr2Thread3of5ForFork1_~t~0 4) ~n~0), 773132#(<= (+ thr2Thread3of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:19:28,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-09 17:19:28,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:28,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-09 17:19:28,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2020-11-09 17:19:28,176 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 17 states. [2020-11-09 17:19:29,147 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2020-11-09 17:19:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:31,168 INFO L93 Difference]: Finished difference Result 24684 states and 98912 transitions. [2020-11-09 17:19:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-09 17:19:31,169 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2020-11-09 17:19:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:31,357 INFO L225 Difference]: With dead ends: 24684 [2020-11-09 17:19:31,357 INFO L226 Difference]: Without dead ends: 24623 [2020-11-09 17:19:31,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=631, Invalid=2561, Unknown=0, NotChecked=0, Total=3192 [2020-11-09 17:19:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24623 states. [2020-11-09 17:19:31,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24623 to 9320. [2020-11-09 17:19:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-11-09 17:19:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-11-09 17:19:31,786 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-11-09 17:19:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:31,786 INFO L481 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-11-09 17:19:31,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-09 17:19:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-11-09 17:19:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:31,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:31,788 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:31,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-11-09 17:19:31,990 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:31,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1934456551, now seen corresponding path program 2 times [2020-11-09 17:19:31,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:31,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35394632] [2020-11-09 17:19:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:32,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35394632] [2020-11-09 17:19:32,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925192137] [2020-11-09 17:19:32,329 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 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:32,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:19:32,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:19:32,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:19:32,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-09 17:19:32,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:32,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 17:19:32,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2067012898] [2020-11-09 17:19:32,675 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:32,677 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:32,680 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 17:19:32,680 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:32,681 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:32,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 17:19:32,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:32,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 17:19:32,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 17:19:32,682 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 12 states. [2020-11-09 17:19:34,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:34,220 INFO L93 Difference]: Finished difference Result 21469 states and 87720 transitions. [2020-11-09 17:19:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 17:19:34,221 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 17:19:34,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:34,283 INFO L225 Difference]: With dead ends: 21469 [2020-11-09 17:19:34,283 INFO L226 Difference]: Without dead ends: 21432 [2020-11-09 17:19:34,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:19:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21432 states. [2020-11-09 17:19:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21432 to 9401. [2020-11-09 17:19:34,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-11-09 17:19:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-11-09 17:19:34,836 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-11-09 17:19:34,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:34,836 INFO L481 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-11-09 17:19:34,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 17:19:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-11-09 17:19:34,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:34,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:34,839 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:35,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:35,053 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1934482312, now seen corresponding path program 2 times [2020-11-09 17:19:35,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:35,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626929682] [2020-11-09 17:19:35,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:35,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626929682] [2020-11-09 17:19:35,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155384435] [2020-11-09 17:19:35,228 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 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:35,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:19:35,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:19:35,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:19:35,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-09 17:19:35,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:35,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 17:19:35,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [150450040] [2020-11-09 17:19:35,561 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:35,563 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:35,567 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 17:19:35,567 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:35,567 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:35,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 17:19:35,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:35,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 17:19:35,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 17:19:35,568 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 12 states. [2020-11-09 17:19:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:37,259 INFO L93 Difference]: Finished difference Result 24049 states and 100334 transitions. [2020-11-09 17:19:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 17:19:37,260 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 17:19:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:37,333 INFO L225 Difference]: With dead ends: 24049 [2020-11-09 17:19:37,333 INFO L226 Difference]: Without dead ends: 24012 [2020-11-09 17:19:37,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:19:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24012 states. [2020-11-09 17:19:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24012 to 9396. [2020-11-09 17:19:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-11-09 17:19:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-11-09 17:19:37,908 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-11-09 17:19:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:37,908 INFO L481 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-11-09 17:19:37,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 17:19:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-11-09 17:19:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 17:19:37,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:37,911 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:38,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:38,112 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:38,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:38,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1934448987, now seen corresponding path program 2 times [2020-11-09 17:19:38,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:38,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780328866] [2020-11-09 17:19:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:38,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780328866] [2020-11-09 17:19:38,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150118676] [2020-11-09 17:19:38,273 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 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:38,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:19:38,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:19:38,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 17:19:38,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-09 17:19:38,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:38,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 17:19:38,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [839888420] [2020-11-09 17:19:38,612 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:38,614 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:38,618 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 17:19:38,618 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:38,618 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:19:38,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 17:19:38,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:38,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 17:19:38,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 17:19:38,619 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 12 states. [2020-11-09 17:19:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:40,242 INFO L93 Difference]: Finished difference Result 23916 states and 99572 transitions. [2020-11-09 17:19:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 17:19:40,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 17:19:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:40,317 INFO L225 Difference]: With dead ends: 23916 [2020-11-09 17:19:40,317 INFO L226 Difference]: Without dead ends: 23879 [2020-11-09 17:19:40,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 17:19:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23879 states. [2020-11-09 17:19:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23879 to 9426. [2020-11-09 17:19:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-11-09 17:19:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-11-09 17:19:40,903 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-11-09 17:19:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:40,904 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-11-09 17:19:40,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 17:19:40,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-11-09 17:19:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:19:40,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:40,907 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:41,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-11-09 17:19:41,108 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:41,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1759604926, now seen corresponding path program 1 times [2020-11-09 17:19:41,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:41,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653277631] [2020-11-09 17:19:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-09 17:19:41,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653277631] [2020-11-09 17:19:41,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774362452] [2020-11-09 17:19:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:41,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 17:19:41,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:41,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:41,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 23 [2020-11-09 17:19:41,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1890205592] [2020-11-09 17:19:41,932 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:41,935 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:41,946 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 105 transitions. [2020-11-09 17:19:41,946 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:42,839 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 13 new interpolants: [942854#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 942852#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 942853#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 942850#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 942851#(<= (+ ~x~0 4) ~n~0), 942848#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 942849#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 942846#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 942847#(<= (+ thr2Thread1of5ForFork1_~t~0 4) ~n~0), 942844#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 942845#(<= (+ ~x~0 3) ~n~0), 942842#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ~n~0), 942843#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0)] [2020-11-09 17:19:42,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-09 17:19:42,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:42,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-09 17:19:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2020-11-09 17:19:42,841 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 26 states. [2020-11-09 17:19:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:19:55,590 INFO L93 Difference]: Finished difference Result 46653 states and 171055 transitions. [2020-11-09 17:19:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2020-11-09 17:19:55,591 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 25 [2020-11-09 17:19:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:19:55,732 INFO L225 Difference]: With dead ends: 46653 [2020-11-09 17:19:55,733 INFO L226 Difference]: Without dead ends: 46594 [2020-11-09 17:19:55,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12604 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=5196, Invalid=29586, Unknown=0, NotChecked=0, Total=34782 [2020-11-09 17:19:56,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46594 states. [2020-11-09 17:19:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46594 to 9691. [2020-11-09 17:19:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9691 states. [2020-11-09 17:19:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 44391 transitions. [2020-11-09 17:19:56,792 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 44391 transitions. Word has length 25 [2020-11-09 17:19:56,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:19:56,793 INFO L481 AbstractCegarLoop]: Abstraction has 9691 states and 44391 transitions. [2020-11-09 17:19:56,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-09 17:19:56,793 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 44391 transitions. [2020-11-09 17:19:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:19:56,797 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:19:56,797 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:19:56,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:56,998 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:19:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:19:56,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1115963617, now seen corresponding path program 1 times [2020-11-09 17:19:57,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:19:57,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226235962] [2020-11-09 17:19:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:19:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 17:19:57,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226235962] [2020-11-09 17:19:57,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772255236] [2020-11-09 17:19:57,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:19:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:19:57,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 17:19:57,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:19:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:19:57,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:19:57,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 22 [2020-11-09 17:19:57,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [496500831] [2020-11-09 17:19:57,840 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:19:57,842 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:19:57,851 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions. [2020-11-09 17:19:57,851 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:19:58,866 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 12 new interpolants: [1009295#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 1009294#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 1009293#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1009292#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 1009291#(<= (+ ~x~0 4) ~n~0), 1009290#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1009289#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 1009288#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 1009287#(<= (+ thr2Thread3of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1009286#(<= (+ thr2Thread1of5ForFork1_~t~0 4) ~n~0), 1009285#(<= (+ ~x~0 3) ~n~0), 1009284#(<= (+ thr2Thread3of5ForFork1_~t~0 3) ~n~0)] [2020-11-09 17:19:58,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-09 17:19:58,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:19:58,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-09 17:19:58,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2020-11-09 17:19:58,868 INFO L87 Difference]: Start difference. First operand 9691 states and 44391 transitions. Second operand 24 states. [2020-11-09 17:20:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:20:10,101 INFO L93 Difference]: Finished difference Result 45902 states and 168669 transitions. [2020-11-09 17:20:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2020-11-09 17:20:10,103 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 25 [2020-11-09 17:20:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:20:10,228 INFO L225 Difference]: With dead ends: 45902 [2020-11-09 17:20:10,228 INFO L226 Difference]: Without dead ends: 45843 [2020-11-09 17:20:10,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9808 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=4008, Invalid=23382, Unknown=0, NotChecked=0, Total=27390 [2020-11-09 17:20:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45843 states. [2020-11-09 17:20:11,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45843 to 9814. [2020-11-09 17:20:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9814 states. [2020-11-09 17:20:11,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9814 states to 9814 states and 45150 transitions. [2020-11-09 17:20:11,209 INFO L78 Accepts]: Start accepts. Automaton has 9814 states and 45150 transitions. Word has length 25 [2020-11-09 17:20:11,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:20:11,209 INFO L481 AbstractCegarLoop]: Abstraction has 9814 states and 45150 transitions. [2020-11-09 17:20:11,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-09 17:20:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9814 states and 45150 transitions. [2020-11-09 17:20:11,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:20:11,213 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:20:11,213 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:20:11,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-11-09 17:20:11,414 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:20:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:20:11,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1023886943, now seen corresponding path program 2 times [2020-11-09 17:20:11,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:20:11,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437297958] [2020-11-09 17:20:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:20:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:20:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:20:11,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437297958] [2020-11-09 17:20:11,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321546748] [2020-11-09 17:20:11,632 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 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:20:11,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:20:11,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:20:11,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:20:11,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:20:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:20:12,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:20:12,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 23 [2020-11-09 17:20:12,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [989097413] [2020-11-09 17:20:12,138 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:20:12,140 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:20:12,148 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions. [2020-11-09 17:20:12,148 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:20:12,870 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [1075184#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 1075185#(<= (+ ~x~0 4) ~n~0), 1075186#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 1075187#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1075188#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1075189#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 1075190#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0)), 1075183#(<= (+ thr2Thread1of5ForFork1_~t~0 4) ~n~0)] [2020-11-09 17:20:12,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 17:20:12,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:20:12,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 17:20:12,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:20:12,871 INFO L87 Difference]: Start difference. First operand 9814 states and 45150 transitions. Second operand 22 states. [2020-11-09 17:20:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:20:21,509 INFO L93 Difference]: Finished difference Result 35721 states and 134656 transitions. [2020-11-09 17:20:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-11-09 17:20:21,510 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-11-09 17:20:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:20:21,613 INFO L225 Difference]: With dead ends: 35721 [2020-11-09 17:20:21,613 INFO L226 Difference]: Without dead ends: 35681 [2020-11-09 17:20:21,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4569 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2178, Invalid=12342, Unknown=0, NotChecked=0, Total=14520 [2020-11-09 17:20:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35681 states. [2020-11-09 17:20:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35681 to 9811. [2020-11-09 17:20:22,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9811 states. [2020-11-09 17:20:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 45097 transitions. [2020-11-09 17:20:22,326 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 45097 transitions. Word has length 25 [2020-11-09 17:20:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:20:22,326 INFO L481 AbstractCegarLoop]: Abstraction has 9811 states and 45097 transitions. [2020-11-09 17:20:22,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 17:20:22,327 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 45097 transitions. [2020-11-09 17:20:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 17:20:22,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:20:22,330 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:20:22,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:20:22,531 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:20:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:20:22,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1023861182, now seen corresponding path program 2 times [2020-11-09 17:20:22,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:20:22,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557239366] [2020-11-09 17:20:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:20:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:20:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:20:22,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557239366] [2020-11-09 17:20:22,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214536694] [2020-11-09 17:20:22,770 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 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 17:20:22,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 17:20:22,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 17:20:22,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 17:20:22,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 17:20:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-09 17:20:23,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 17:20:23,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 23 [2020-11-09 17:20:23,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [465876363] [2020-11-09 17:20:23,506 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:20:23,509 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:20:23,546 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions. [2020-11-09 17:20:23,546 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:20:24,219 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [1130807#(<= (+ thr2Thread1of5ForFork1_~t~0 4) ~n~0), 1130809#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1130808#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 1130811#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 1130810#(<= (+ ~x~0 4) ~n~0), 1130813#(and (= ULTIMATE.start_main_~i~0 0) (<= thr2Thread1of5ForFork1_~t~0 ULTIMATE.start_main_~i~0)), 1130812#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1130814#(and (= ULTIMATE.start_main_~i~0 0) (<= ~x~0 ULTIMATE.start_main_~i~0))] [2020-11-09 17:20:24,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 17:20:24,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:20:24,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 17:20:24,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 17:20:24,220 INFO L87 Difference]: Start difference. First operand 9811 states and 45097 transitions. Second operand 22 states. Received shutdown request... [2020-11-09 17:20:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-11-09 17:20:30,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-11-09 17:20:30,515 WARN L546 AbstractCegarLoop]: Verification canceled [2020-11-09 17:20:30,521 WARN L250 ceAbstractionStarter]: Timeout [2020-11-09 17:20:30,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:20:30 BasicIcfg [2020-11-09 17:20:30,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:20:30,522 INFO L168 Benchmark]: Toolchain (without parser) took 232573.90 ms. Allocated memory was 151.0 MB in the beginning and 4.8 GB in the end (delta: 4.6 GB). Free memory was 125.4 MB in the beginning and 4.4 GB in the end (delta: -4.2 GB). Peak memory consumption was 360.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,522 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:20:30,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.13 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 132.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 131.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,523 INFO L168 Benchmark]: Boogie Preprocessor took 30.25 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 129.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,523 INFO L168 Benchmark]: RCFGBuilder took 438.79 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 108.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,524 INFO L168 Benchmark]: TraceAbstraction took 231274.49 ms. Allocated memory was 151.0 MB in the beginning and 4.8 GB in the end (delta: 4.6 GB). Free memory was 108.4 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 344.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:20:30,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 747.13 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 132.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 70.36 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 131.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.25 ms. Allocated memory is still 151.0 MB. Free memory was 131.0 MB in the beginning and 129.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 438.79 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 108.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 231274.49 ms. Allocated memory was 151.0 MB in the beginning and 4.8 GB in the end (delta: 4.6 GB). Free memory was 108.4 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 344.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 542 VarBasedMoverChecksPositive, 6 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 72 PlacesBefore, 18 PlacesAfterwards, 70 TransitionsBefore, 12 TransitionsAfterwards, 942 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 73 TotalNumberOfCompositions, 919 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 783 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 97 PlacesBefore, 31 PlacesAfterwards, 93 TransitionsBefore, 21 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 93 TotalNumberOfCompositions, 1748 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1143 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 48 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 122 PlacesBefore, 41 PlacesAfterwards, 116 TransitionsBefore, 27 TransitionsAfterwards, 1998 CoEnabledTransitionPairs, 6 FixpointIterations, 59 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 8 ChoiceCompositions, 125 TotalNumberOfCompositions, 2907 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1429 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.4s, 147 PlacesBefore, 51 PlacesAfterwards, 139 TransitionsBefore, 33 TransitionsAfterwards, 2652 CoEnabledTransitionPairs, 6 FixpointIterations, 79 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 8 ConcurrentYvCompositions, 10 ChoiceCompositions, 157 TotalNumberOfCompositions, 4085 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1766 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.1s, 172 PlacesBefore, 61 PlacesAfterwards, 162 TransitionsBefore, 39 TransitionsAfterwards, 3390 CoEnabledTransitionPairs, 6 FixpointIterations, 93 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 4 ConcurrentYvCompositions, 12 ChoiceCompositions, 175 TotalNumberOfCompositions, 4734 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing difference of abstraction (9811states) and FLOYD_HOARE automaton (currently 75 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (1255 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 230.8s, OverallIterations: 59, TraceHistogramMax: 5, AutomataDifference: 144.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 29.9s, HoareTripleCheckerStatistics: 2197 SDtfs, 17164 SDslu, 13353 SDs, 0 SdLazy, 40080 SolverSat, 2350 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3333 GetRequests, 530 SyntacticMatches, 34 SemanticMatches, 2769 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93770 ImplicationChecksByTransitivity, 98.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9814occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.5s AutomataMinimizationTime, 54 MinimizatonAttempts, 530294 StatesRemovedByMinimization, 48 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 123 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 178388 SizeOfPredicates, 212 NumberOfNonLiveVariables, 4772 ConjunctsInSsa, 384 ConjunctsInUnsatCore, 91 InterpolantComputations, 19 PerfectInterpolantSequences, 252/772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown