/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:48:00,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:48:00,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:48:00,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:48:00,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:48:00,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:48:00,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:48:00,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:48:00,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:48:00,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:48:00,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:48:00,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:48:00,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:48:00,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:48:00,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:48:00,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:48:00,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:48:00,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:48:00,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:48:00,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:48:00,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:48:00,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:48:00,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:48:00,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:48:00,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:48:00,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:48:00,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:48:00,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:48:00,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:48:00,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:48:00,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:48:00,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:48:00,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:48:00,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:48:00,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:48:00,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:48:00,879 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-WP.epf [2020-11-09 15:48:00,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:48:00,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:48:00,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:48:00,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:48:00,910 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:48:00,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:48:00,911 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:48:00,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:48:00,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:48:00,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:48:00,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:48:00,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:48:00,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:48:00,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:48:00,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:48:00,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:48:00,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:48:00,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:48:00,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:48:00,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:48:00,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:48:00,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:48:00,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:48:00,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:48:00,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:48:00,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:48:00,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:48:00,916 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:48:00,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:48:00,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:48:00,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:48:01,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:48:01,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:48:01,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:48:01,374 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:48:01,375 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:48:01,377 INFO L432 ainManager$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 15:48:01,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f373cd4/0c62663176a14ae0a34d404538b883cb/FLAG51c40a6a4 [2020-11-09 15:48:02,127 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:48:02,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-1.i [2020-11-09 15:48:02,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f373cd4/0c62663176a14ae0a34d404538b883cb/FLAG51c40a6a4 [2020-11-09 15:48:02,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f373cd4/0c62663176a14ae0a34d404538b883cb [2020-11-09 15:48:02,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:48:02,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:48:02,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:48:02,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:48:02,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:48:02,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:48:02" (1/1) ... [2020-11-09 15:48:02,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5820183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:02, skipping insertion in model container [2020-11-09 15:48:02,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:48:02" (1/1) ... [2020-11-09 15:48:02,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:48:02,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:48:02,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:48:02,912 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:48:02,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:48:03,128 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:48:03,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03 WrapperNode [2020-11-09 15:48:03,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:48:03,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:48:03,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:48:03,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:48:03,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:48:03,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:48:03,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:48:03,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:48:03,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (1/1) ... [2020-11-09 15:48:03,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:48:03,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:48:03,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:48:03,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:48:03,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (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 15:48:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-11-09 15:48:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-11-09 15:48:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-11-09 15:48:03,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-11-09 15:48:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:48:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:48:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:48:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:48:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:48:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:48:03,334 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 15:48:03,710 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:48:03,710 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-09 15:48:03,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:48:03 BoogieIcfgContainer [2020-11-09 15:48:03,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:48:03,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:48:03,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:48:03,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:48:03,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:48:02" (1/3) ... [2020-11-09 15:48:03,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f88c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:48:03, skipping insertion in model container [2020-11-09 15:48:03,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:48:03" (2/3) ... [2020-11-09 15:48:03,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f88c93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:48:03, skipping insertion in model container [2020-11-09 15:48:03,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:48:03" (3/3) ... [2020-11-09 15:48:03,734 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-1.i [2020-11-09 15:48:03,767 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:48:03,767 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:48:03,771 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:48:03,773 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:48:03,829 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,830 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,831 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,831 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,836 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,877 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,877 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,877 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:03,892 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:48:03,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:48:03,945 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:48:03,946 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:48:03,946 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:48:03,946 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:48:03,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:48:03,947 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:48:03,947 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:48:03,947 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:48:03,965 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:48:03,966 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-09 15:48:03,970 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 150 flow [2020-11-09 15:48:03,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 150 flow [2020-11-09 15:48:04,054 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2020-11-09 15:48:04,055 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:48:04,060 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 15:48:04,064 INFO L116 LiptonReduction]: Number of co-enabled transitions 942 [2020-11-09 15:48:06,719 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-11-09 15:48:07,145 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-09 15:48:07,358 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-09 15:48:07,483 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-09 15:48:07,781 WARN L194 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-11-09 15:48:07,916 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 15:48:08,299 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-11-09 15:48:08,471 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 15:48:08,474 INFO L131 LiptonReduction]: Checked pairs total: 919 [2020-11-09 15:48:08,475 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-09 15:48:08,483 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-11-09 15:48:08,491 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-11-09 15:48:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-11-09 15:48:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:48:08,497 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:08,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:48:08,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 15:48:08,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash 283649, now seen corresponding path program 1 times [2020-11-09 15:48:08,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:08,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882381363] [2020-11-09 15:48:08,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:08,722 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 15:48:08,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882381363] [2020-11-09 15:48:08,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:08,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:48:08,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [953662287] [2020-11-09 15:48:08,725 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:08,728 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:08,740 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:48:08,740 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:08,744 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:08,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:08,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:08,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:08,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:08,762 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-11-09 15:48:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:08,798 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-11-09 15:48:08,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:08,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:48:08,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:08,809 INFO L225 Difference]: With dead ends: 35 [2020-11-09 15:48:08,809 INFO L226 Difference]: Without dead ends: 31 [2020-11-09 15:48:08,810 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 15:48:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-09 15:48:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-09 15:48:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-09 15:48:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-11-09 15:48:08,848 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-11-09 15:48:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:08,848 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-11-09 15:48:08,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-11-09 15:48:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 15:48:08,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:08,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:08,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:48:08,850 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 15:48:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash -68679350, now seen corresponding path program 1 times [2020-11-09 15:48:08,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:08,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146552121] [2020-11-09 15:48:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:08,939 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 15:48:08,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146552121] [2020-11-09 15:48:08,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:08,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:48:08,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [256656904] [2020-11-09 15:48:08,940 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:08,942 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:08,945 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 15:48:08,945 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:08,945 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:08,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:48:08,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:08,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:48:08,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:48:08,948 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-11-09 15:48:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:08,968 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-11-09 15:48:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:48:08,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 15:48:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:08,970 INFO L225 Difference]: With dead ends: 26 [2020-11-09 15:48:08,970 INFO L226 Difference]: Without dead ends: 24 [2020-11-09 15:48:08,971 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 15:48:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-09 15:48:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-09 15:48:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-09 15:48:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-11-09 15:48:08,975 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-11-09 15:48:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:08,976 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-11-09 15:48:08,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:48:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-11-09 15:48:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:48:08,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:08,977 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:08,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:48:08,977 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-09 15:48:08,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:08,978 INFO L82 PathProgramCache]: Analyzing trace with hash -2129054148, now seen corresponding path program 1 times [2020-11-09 15:48:08,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:08,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77050849] [2020-11-09 15:48:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:09,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:09,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:09,101 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 15:48:09,101 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 15:48:09,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:48:09,102 WARN L386 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 15:48:09,102 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-11-09 15:48:09,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,112 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,113 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,114 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,115 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,116 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,117 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,118 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,129 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,130 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,130 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,131 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,136 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,137 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,137 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,137 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,138 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,139 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,139 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,139 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:09,140 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:48:09,140 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:48:09,142 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:48:09,142 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:48:09,142 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:48:09,142 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:48:09,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:48:09,143 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:48:09,143 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:48:09,143 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:48:09,146 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:48:09,146 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 93 transitions, 210 flow [2020-11-09 15:48:09,146 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 93 transitions, 210 flow [2020-11-09 15:48:09,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 210 flow [2020-11-09 15:48:09,169 INFO L129 PetriNetUnfolder]: 6/102 cut-off events. [2020-11-09 15:48:09,170 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-11-09 15:48:09,172 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 15:48:09,175 INFO L116 LiptonReduction]: Number of co-enabled transitions 1428 [2020-11-09 15:48:12,197 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-11-09 15:48:12,414 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-11-09 15:48:13,066 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 15:48:13,209 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 15:48:13,552 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-11-09 15:48:13,709 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 15:48:13,713 INFO L131 LiptonReduction]: Checked pairs total: 1748 [2020-11-09 15:48:13,713 INFO L133 LiptonReduction]: Total number of compositions: 93 [2020-11-09 15:48:13,714 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-11-09 15:48:13,731 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-11-09 15:48:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-11-09 15:48:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:48:13,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:13,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:48:13,734 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:13,735 INFO L82 PathProgramCache]: Analyzing trace with hash 490502, now seen corresponding path program 1 times [2020-11-09 15:48:13,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:13,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685468777] [2020-11-09 15:48:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:13,805 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 15:48:13,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685468777] [2020-11-09 15:48:13,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:13,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:48:13,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2045574566] [2020-11-09 15:48:13,807 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:13,808 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:13,809 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:48:13,809 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:13,809 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:13,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:13,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:13,811 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-11-09 15:48:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:13,843 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-11-09 15:48:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:13,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:48:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:13,848 INFO L225 Difference]: With dead ends: 185 [2020-11-09 15:48:13,848 INFO L226 Difference]: Without dead ends: 171 [2020-11-09 15:48:13,849 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 15:48:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-09 15:48:13,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-11-09 15:48:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-09 15:48:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-11-09 15:48:13,883 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-11-09 15:48:13,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:13,883 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-11-09 15:48:13,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:13,884 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-11-09 15:48:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:48:13,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:13,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:13,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:48:13,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:13,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1141253342, now seen corresponding path program 1 times [2020-11-09 15:48:13,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:13,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483292567] [2020-11-09 15:48:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:13,980 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 15:48:13,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483292567] [2020-11-09 15:48:13,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:13,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:13,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1488282500] [2020-11-09 15:48:13,982 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:13,983 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:13,985 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:48:13,985 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:13,985 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:13,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:13,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:13,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:13,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:13,987 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-11-09 15:48:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:14,090 INFO L93 Difference]: Finished difference Result 225 states and 491 transitions. [2020-11-09 15:48:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:14,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 15:48:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:14,098 INFO L225 Difference]: With dead ends: 225 [2020-11-09 15:48:14,098 INFO L226 Difference]: Without dead ends: 221 [2020-11-09 15:48:14,099 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 15:48:14,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-11-09 15:48:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 162. [2020-11-09 15:48:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 15:48:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-11-09 15:48:14,131 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-11-09 15:48:14,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:14,132 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-11-09 15:48:14,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-11-09 15:48:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:48:14,136 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:14,137 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:14,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:48:14,139 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:14,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:14,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1991641480, now seen corresponding path program 1 times [2020-11-09 15:48:14,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:14,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038836906] [2020-11-09 15:48:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:14,226 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 15:48:14,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038836906] [2020-11-09 15:48:14,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:14,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:14,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1445412209] [2020-11-09 15:48:14,227 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:14,229 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:14,232 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 15:48:14,232 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:14,232 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:14,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:14,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:14,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:14,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:14,234 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-11-09 15:48:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:14,323 INFO L93 Difference]: Finished difference Result 213 states and 458 transitions. [2020-11-09 15:48:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:14,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:48:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:14,326 INFO L225 Difference]: With dead ends: 213 [2020-11-09 15:48:14,327 INFO L226 Difference]: Without dead ends: 209 [2020-11-09 15:48:14,327 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 15:48:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-09 15:48:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 153. [2020-11-09 15:48:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-11-09 15:48:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-11-09 15:48:14,360 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-11-09 15:48:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:14,361 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-11-09 15:48:14,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:14,362 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-11-09 15:48:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:48:14,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:14,363 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:14,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:48:14,364 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:48:14,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:14,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1615436759, now seen corresponding path program 1 times [2020-11-09 15:48:14,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:14,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312072243] [2020-11-09 15:48:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:14,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:14,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:14,451 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 15:48:14,452 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 15:48:14,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:48:14,452 WARN L386 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 15:48:14,454 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-11-09 15:48:14,473 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,474 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,475 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,476 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,477 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,478 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,479 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,480 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,481 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,481 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,483 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,483 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,484 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,485 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,486 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,487 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,488 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,489 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,500 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,504 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,504 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,505 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,505 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,507 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,508 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,513 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,513 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,513 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,513 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,513 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,515 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,515 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,515 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,515 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,515 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:14,517 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:48:14,517 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-09 15:48:14,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:48:14,518 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:48:14,518 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:48:14,518 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:48:14,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:48:14,518 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:48:14,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:48:14,518 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:48:14,520 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:48:14,520 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 116 transitions, 274 flow [2020-11-09 15:48:14,521 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 116 transitions, 274 flow [2020-11-09 15:48:14,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 116 transitions, 274 flow [2020-11-09 15:48:14,550 INFO L129 PetriNetUnfolder]: 7/124 cut-off events. [2020-11-09 15:48:14,550 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-11-09 15:48:14,551 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 15:48:14,555 INFO L116 LiptonReduction]: Number of co-enabled transitions 1998 [2020-11-09 15:48:17,782 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-11-09 15:48:19,009 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-11-09 15:48:19,146 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 15:48:19,461 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-11-09 15:48:19,613 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 15:48:19,631 INFO L131 LiptonReduction]: Checked pairs total: 2907 [2020-11-09 15:48:19,631 INFO L133 LiptonReduction]: Total number of compositions: 125 [2020-11-09 15:48:19,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-11-09 15:48:19,661 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-11-09 15:48:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-11-09 15:48:19,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:48:19,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:19,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:48:19,662 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 15:48:19,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:19,663 INFO L82 PathProgramCache]: Analyzing trace with hash 750612, now seen corresponding path program 1 times [2020-11-09 15:48:19,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:19,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074495083] [2020-11-09 15:48:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:19,697 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 15:48:19,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074495083] [2020-11-09 15:48:19,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:19,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:48:19,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [848918175] [2020-11-09 15:48:19,699 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:19,699 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:19,699 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:48:19,699 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:19,700 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:19,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:19,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:19,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:19,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:19,701 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-11-09 15:48:19,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:19,753 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-11-09 15:48:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:19,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:48:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:19,763 INFO L225 Difference]: With dead ends: 600 [2020-11-09 15:48:19,763 INFO L226 Difference]: Without dead ends: 559 [2020-11-09 15:48:19,764 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 15:48:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-11-09 15:48:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-11-09 15:48:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-11-09 15:48:19,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-11-09 15:48:19,826 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-11-09 15:48:19,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:19,827 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-11-09 15:48:19,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:19,827 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-11-09 15:48:19,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:48:19,828 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:19,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:19,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:48:19,829 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 15:48:19,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:19,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1922210467, now seen corresponding path program 1 times [2020-11-09 15:48:19,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:19,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275562413] [2020-11-09 15:48:19,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:19,882 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 15:48:19,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275562413] [2020-11-09 15:48:19,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:19,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:19,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [74012200] [2020-11-09 15:48:19,883 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:19,884 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:19,885 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:48:19,885 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:19,886 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:19,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:19,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:19,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:19,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:19,887 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-11-09 15:48:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:20,011 INFO L93 Difference]: Finished difference Result 933 states and 2580 transitions. [2020-11-09 15:48:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:20,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 15:48:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:20,020 INFO L225 Difference]: With dead ends: 933 [2020-11-09 15:48:20,020 INFO L226 Difference]: Without dead ends: 928 [2020-11-09 15:48:20,020 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 15:48:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-11-09 15:48:20,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 585. [2020-11-09 15:48:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-11-09 15:48:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-11-09 15:48:20,055 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-11-09 15:48:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:20,055 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-11-09 15:48:20,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-11-09 15:48:20,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:48:20,061 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:20,062 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:20,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:48:20,062 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 15:48:20,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:20,063 INFO L82 PathProgramCache]: Analyzing trace with hash -169664854, now seen corresponding path program 1 times [2020-11-09 15:48:20,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:20,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388426905] [2020-11-09 15:48:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:20,136 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 15:48:20,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388426905] [2020-11-09 15:48:20,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:20,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:20,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [982585956] [2020-11-09 15:48:20,139 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:20,143 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:20,148 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 15:48:20,148 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:20,149 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:20,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:20,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:20,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:20,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:20,151 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-11-09 15:48:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:20,254 INFO L93 Difference]: Finished difference Result 963 states and 2673 transitions. [2020-11-09 15:48:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:20,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:48:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:20,262 INFO L225 Difference]: With dead ends: 963 [2020-11-09 15:48:20,262 INFO L226 Difference]: Without dead ends: 956 [2020-11-09 15:48:20,262 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 15:48:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2020-11-09 15:48:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 611. [2020-11-09 15:48:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-11-09 15:48:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-11-09 15:48:20,295 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-11-09 15:48:20,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:20,296 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-11-09 15:48:20,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-11-09 15:48:20,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:48:20,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:20,299 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:20,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 15:48:20,299 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 15:48:20,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:20,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1253176275, now seen corresponding path program 1 times [2020-11-09 15:48:20,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:20,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107385803] [2020-11-09 15:48:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:20,412 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 15:48:20,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107385803] [2020-11-09 15:48:20,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89654173] [2020-11-09 15:48:20,413 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 15:48:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:20,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:20,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:20,671 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 15:48:20,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:20,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:48:20,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2029620398] [2020-11-09 15:48:20,672 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:20,674 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:20,677 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 15:48:20,678 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:20,795 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 15:48:20,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-09 15:48:20,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:20,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-09 15:48:20,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2020-11-09 15:48:20,797 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 14 states. [2020-11-09 15:48:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:21,779 INFO L93 Difference]: Finished difference Result 1368 states and 3517 transitions. [2020-11-09 15:48:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 15:48:21,779 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-09 15:48:21,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:21,792 INFO L225 Difference]: With dead ends: 1368 [2020-11-09 15:48:21,792 INFO L226 Difference]: Without dead ends: 1355 [2020-11-09 15:48:21,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=1765, Unknown=0, NotChecked=0, Total=2162 [2020-11-09 15:48:21,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-11-09 15:48:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 591. [2020-11-09 15:48:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-11-09 15:48:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-11-09 15:48:21,834 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-11-09 15:48:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:21,834 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-11-09 15:48:21,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-09 15:48:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-11-09 15:48:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:48:21,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:21,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:22,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-09 15:48:22,051 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 15:48:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash 160843847, now seen corresponding path program 2 times [2020-11-09 15:48:22,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:22,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596875675] [2020-11-09 15:48:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:22,164 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 15:48:22,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596875675] [2020-11-09 15:48:22,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470458048] [2020-11-09 15:48:22,165 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 15:48:22,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:48:22,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:22,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:22,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:22,353 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 15:48:22,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:22,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:48:22,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [202352675] [2020-11-09 15:48:22,354 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:22,356 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:22,358 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 15:48:22,358 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:22,359 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:22,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:48:22,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:22,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:48:22,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 15:48:22,360 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 10 states. [2020-11-09 15:48:22,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:22,844 INFO L93 Difference]: Finished difference Result 1167 states and 3044 transitions. [2020-11-09 15:48:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:48:22,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 15:48:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:22,853 INFO L225 Difference]: With dead ends: 1167 [2020-11-09 15:48:22,853 INFO L226 Difference]: Without dead ends: 1159 [2020-11-09 15:48:22,854 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 15:48:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-11-09 15:48:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 536. [2020-11-09 15:48:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-11-09 15:48:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-11-09 15:48:22,889 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-11-09 15:48:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:22,889 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-11-09 15:48:22,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:48:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-11-09 15:48:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:48:22,891 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:22,891 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:23,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-09 15:48:23,105 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 15:48:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:23,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1497752280, now seen corresponding path program 1 times [2020-11-09 15:48:23,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:23,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806104596] [2020-11-09 15:48:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:23,163 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 15:48:23,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806104596] [2020-11-09 15:48:23,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:23,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:23,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1692005271] [2020-11-09 15:48:23,165 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:23,168 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:23,171 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 15:48:23,171 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:23,172 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:23,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:23,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:23,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:23,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:23,173 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-11-09 15:48:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:23,278 INFO L93 Difference]: Finished difference Result 860 states and 2398 transitions. [2020-11-09 15:48:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:23,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 15:48:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:23,285 INFO L225 Difference]: With dead ends: 860 [2020-11-09 15:48:23,285 INFO L226 Difference]: Without dead ends: 852 [2020-11-09 15:48:23,286 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 15:48:23,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-11-09 15:48:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 549. [2020-11-09 15:48:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-11-09 15:48:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-11-09 15:48:23,312 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-11-09 15:48:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:23,312 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-11-09 15:48:23,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-11-09 15:48:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:48:23,314 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:23,314 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:23,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-09 15:48:23,314 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 15:48:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:23,315 INFO L82 PathProgramCache]: Analyzing trace with hash -819922657, now seen corresponding path program 1 times [2020-11-09 15:48:23,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:23,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423539705] [2020-11-09 15:48:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:23,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:48:23,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:48:23,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 15:48:23,351 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 15:48:23,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-09 15:48:23,351 WARN L386 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 15:48:23,352 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-11-09 15:48:23,370 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,371 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,372 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,379 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,380 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,381 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,382 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,383 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,384 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,411 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,411 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,411 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,415 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,415 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:48:23,419 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:48:23,419 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-09 15:48:23,420 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:48:23,420 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:48:23,420 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:48:23,420 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:48:23,420 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:48:23,420 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:48:23,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:48:23,420 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:48:23,422 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:48:23,422 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 139 transitions, 342 flow [2020-11-09 15:48:23,422 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 139 transitions, 342 flow [2020-11-09 15:48:23,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 139 transitions, 342 flow [2020-11-09 15:48:23,445 INFO L129 PetriNetUnfolder]: 8/146 cut-off events. [2020-11-09 15:48:23,445 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-11-09 15:48:23,447 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 15:48:23,452 INFO L116 LiptonReduction]: Number of co-enabled transitions 2652 [2020-11-09 15:48:27,690 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-11-09 15:48:28,376 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-09 15:48:28,518 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 15:48:28,877 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-11-09 15:48:29,043 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 15:48:29,067 INFO L131 LiptonReduction]: Checked pairs total: 4085 [2020-11-09 15:48:29,067 INFO L133 LiptonReduction]: Total number of compositions: 157 [2020-11-09 15:48:29,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-11-09 15:48:29,187 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-11-09 15:48:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-11-09 15:48:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:48:29,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:29,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:48:29,188 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 15:48:29,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:29,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1064410, now seen corresponding path program 1 times [2020-11-09 15:48:29,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:29,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833043081] [2020-11-09 15:48:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:29,221 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 15:48:29,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833043081] [2020-11-09 15:48:29,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:29,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:48:29,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2008702148] [2020-11-09 15:48:29,222 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:29,222 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:29,223 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:48:29,223 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:29,223 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:29,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:48:29,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:29,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:48:29,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:48:29,224 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-11-09 15:48:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:29,270 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-11-09 15:48:29,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:48:29,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:48:29,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:29,288 INFO L225 Difference]: With dead ends: 1889 [2020-11-09 15:48:29,288 INFO L226 Difference]: Without dead ends: 1767 [2020-11-09 15:48:29,289 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 15:48:29,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-11-09 15:48:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-11-09 15:48:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-11-09 15:48:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-11-09 15:48:29,399 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-11-09 15:48:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:29,400 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-11-09 15:48:29,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:48:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-11-09 15:48:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:48:29,400 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:29,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:29,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-09 15:48:29,401 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 15:48:29,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:29,401 INFO L82 PathProgramCache]: Analyzing trace with hash 722307842, now seen corresponding path program 1 times [2020-11-09 15:48:29,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:29,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827649042] [2020-11-09 15:48:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:29,445 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 15:48:29,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827649042] [2020-11-09 15:48:29,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:29,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:29,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [669928970] [2020-11-09 15:48:29,446 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:29,446 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:29,447 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:48:29,447 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:29,448 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:29,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:29,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:29,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:29,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:29,449 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-11-09 15:48:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:29,572 INFO L93 Difference]: Finished difference Result 3381 states and 11559 transitions. [2020-11-09 15:48:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:29,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 15:48:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:29,603 INFO L225 Difference]: With dead ends: 3381 [2020-11-09 15:48:29,604 INFO L226 Difference]: Without dead ends: 3375 [2020-11-09 15:48:29,604 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 15:48:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2020-11-09 15:48:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 1966. [2020-11-09 15:48:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-11-09 15:48:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-11-09 15:48:29,719 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-11-09 15:48:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:29,719 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-11-09 15:48:29,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-11-09 15:48:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:48:29,720 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:29,720 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:29,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-09 15:48:29,720 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 15:48:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:29,721 INFO L82 PathProgramCache]: Analyzing trace with hash 916321331, now seen corresponding path program 1 times [2020-11-09 15:48:29,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:29,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365605278] [2020-11-09 15:48:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:29,770 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 15:48:29,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365605278] [2020-11-09 15:48:29,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:29,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:29,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [91063565] [2020-11-09 15:48:29,771 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:29,774 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:29,775 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 15:48:29,775 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:29,776 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:29,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:29,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:29,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:29,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:29,778 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-11-09 15:48:29,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:29,916 INFO L93 Difference]: Finished difference Result 3684 states and 12737 transitions. [2020-11-09 15:48:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:29,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:48:29,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:29,972 INFO L225 Difference]: With dead ends: 3684 [2020-11-09 15:48:29,972 INFO L226 Difference]: Without dead ends: 3674 [2020-11-09 15:48:29,973 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 15:48:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-11-09 15:48:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 2200. [2020-11-09 15:48:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-11-09 15:48:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-11-09 15:48:30,092 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-11-09 15:48:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:30,095 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-11-09 15:48:30,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-11-09 15:48:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:48:30,095 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:30,096 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:30,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-09 15:48:30,096 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 15:48:30,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:30,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1895531711, now seen corresponding path program 1 times [2020-11-09 15:48:30,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:30,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152880201] [2020-11-09 15:48:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:30,195 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 15:48:30,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152880201] [2020-11-09 15:48:30,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809940091] [2020-11-09 15:48:30,197 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 15:48:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:30,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:30,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:30,412 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 15:48:30,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:30,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:48:30,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [559413026] [2020-11-09 15:48:30,413 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:30,414 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:30,417 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 15:48:30,417 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:30,533 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 15:48:30,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-09 15:48:30,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:30,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-09 15:48:30,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2020-11-09 15:48:30,536 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 14 states. [2020-11-09 15:48:31,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:31,388 INFO L93 Difference]: Finished difference Result 5261 states and 16798 transitions. [2020-11-09 15:48:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-09 15:48:31,389 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-09 15:48:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:31,417 INFO L225 Difference]: With dead ends: 5261 [2020-11-09 15:48:31,418 INFO L226 Difference]: Without dead ends: 5248 [2020-11-09 15:48:31,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2020-11-09 15:48:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2020-11-09 15:48:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 2157. [2020-11-09 15:48:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-11-09 15:48:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-11-09 15:48:31,569 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-11-09 15:48:31,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:31,570 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-11-09 15:48:31,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-09 15:48:31,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-11-09 15:48:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:48:31,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:31,571 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:31,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-09 15:48:31,786 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 15:48:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:31,788 INFO L82 PathProgramCache]: Analyzing trace with hash 116504769, now seen corresponding path program 2 times [2020-11-09 15:48:31,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:31,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399823943] [2020-11-09 15:48:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:31,898 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 15:48:31,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399823943] [2020-11-09 15:48:31,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869348189] [2020-11-09 15:48:31,899 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 15:48:31,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:48:31,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:31,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:31,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:32,090 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 15:48:32,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:32,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:48:32,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [71914097] [2020-11-09 15:48:32,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:32,092 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:32,096 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 15:48:32,097 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:32,097 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:32,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:48:32,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:32,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:48:32,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 15:48:32,098 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 10 states. [2020-11-09 15:48:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:32,693 INFO L93 Difference]: Finished difference Result 5224 states and 16850 transitions. [2020-11-09 15:48:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:48:32,693 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 15:48:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:32,716 INFO L225 Difference]: With dead ends: 5224 [2020-11-09 15:48:32,717 INFO L226 Difference]: Without dead ends: 5213 [2020-11-09 15:48:32,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 15:48:32,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2020-11-09 15:48:32,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 2035. [2020-11-09 15:48:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-11-09 15:48:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-11-09 15:48:32,851 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-11-09 15:48:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:32,852 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-11-09 15:48:32,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:48:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-11-09 15:48:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:48:32,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:32,853 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:33,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:48:33,068 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 15:48:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:33,069 INFO L82 PathProgramCache]: Analyzing trace with hash -111031878, now seen corresponding path program 1 times [2020-11-09 15:48:33,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:33,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430274462] [2020-11-09 15:48:33,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:33,111 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 15:48:33,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430274462] [2020-11-09 15:48:33,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:48:33,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:48:33,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [160796842] [2020-11-09 15:48:33,112 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:33,114 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:33,116 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 15:48:33,116 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:33,117 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:33,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:48:33,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:33,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:48:33,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:48:33,118 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-11-09 15:48:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:33,249 INFO L93 Difference]: Finished difference Result 3749 states and 13114 transitions. [2020-11-09 15:48:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:48:33,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 15:48:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:33,265 INFO L225 Difference]: With dead ends: 3749 [2020-11-09 15:48:33,265 INFO L226 Difference]: Without dead ends: 3734 [2020-11-09 15:48:33,265 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 15:48:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2020-11-09 15:48:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2281. [2020-11-09 15:48:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-11-09 15:48:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-11-09 15:48:33,366 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-11-09 15:48:33,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:33,366 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-11-09 15:48:33,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:48:33,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-11-09 15:48:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:48:33,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:33,368 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:33,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-09 15:48:33,368 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 15:48:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash 502405576, now seen corresponding path program 1 times [2020-11-09 15:48:33,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:33,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880509620] [2020-11-09 15:48:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:33,460 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 15:48:33,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880509620] [2020-11-09 15:48:33,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461739182] [2020-11-09 15:48:33,461 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 15:48:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:33,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 15:48:33,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:33,726 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 15:48:33,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:33,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 15:48:33,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [712531793] [2020-11-09 15:48:33,727 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:33,729 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:33,736 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions. [2020-11-09 15:48:33,736 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:33,970 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 15:48:33,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 15:48:33,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:33,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 15:48:33,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2020-11-09 15:48:33,972 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 18 states. [2020-11-09 15:48:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:35,733 INFO L93 Difference]: Finished difference Result 5661 states and 18326 transitions. [2020-11-09 15:48:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-09 15:48:35,734 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2020-11-09 15:48:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:35,758 INFO L225 Difference]: With dead ends: 5661 [2020-11-09 15:48:35,758 INFO L226 Difference]: Without dead ends: 5639 [2020-11-09 15:48:35,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=719, Invalid=2941, Unknown=0, NotChecked=0, Total=3660 [2020-11-09 15:48:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2020-11-09 15:48:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 2305. [2020-11-09 15:48:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-11-09 15:48:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-11-09 15:48:35,899 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-11-09 15:48:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:35,899 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-11-09 15:48:35,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 15:48:35,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-11-09 15:48:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:48:35,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:35,901 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:36,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-09 15:48:36,115 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 15:48:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:36,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1372443465, now seen corresponding path program 1 times [2020-11-09 15:48:36,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:36,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642136440] [2020-11-09 15:48:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:36,205 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 15:48:36,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642136440] [2020-11-09 15:48:36,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155200175] [2020-11-09 15:48:36,206 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 15:48:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:36,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 15:48:36,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:36,455 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 15:48:36,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:36,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 15:48:36,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [490604414] [2020-11-09 15:48:36,456 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:36,458 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:36,462 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions. [2020-11-09 15:48:36,463 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:36,582 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 15:48:36,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-09 15:48:36,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:36,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-09 15:48:36,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:48:36,584 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 15 states. [2020-11-09 15:48:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:37,998 INFO L93 Difference]: Finished difference Result 5705 states and 18679 transitions. [2020-11-09 15:48:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-09 15:48:37,999 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-11-09 15:48:37,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:38,018 INFO L225 Difference]: With dead ends: 5705 [2020-11-09 15:48:38,018 INFO L226 Difference]: Without dead ends: 5676 [2020-11-09 15:48:38,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=543, Invalid=2109, Unknown=0, NotChecked=0, Total=2652 [2020-11-09 15:48:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2020-11-09 15:48:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 2299. [2020-11-09 15:48:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-11-09 15:48:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-11-09 15:48:38,135 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-11-09 15:48:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:38,135 INFO L481 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-11-09 15:48:38,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-09 15:48:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-11-09 15:48:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:48:38,137 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:38,137 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:38,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:48:38,353 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 15:48:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:38,354 INFO L82 PathProgramCache]: Analyzing trace with hash 672543389, now seen corresponding path program 2 times [2020-11-09 15:48:38,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:38,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321878197] [2020-11-09 15:48:38,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:38,442 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 15:48:38,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321878197] [2020-11-09 15:48:38,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465207599] [2020-11-09 15:48:38,443 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 15:48:38,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:48:38,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:38,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:38,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:38,654 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 15:48:38,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:38,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 15:48:38,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1610921857] [2020-11-09 15:48:38,655 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:38,656 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:38,658 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 15:48:38,659 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:38,659 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:38,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 15:48:38,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:38,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 15:48:38,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 15:48:38,660 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 11 states. [2020-11-09 15:48:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:39,303 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-11-09 15:48:39,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:48:39,304 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 15:48:39,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:39,320 INFO L225 Difference]: With dead ends: 4934 [2020-11-09 15:48:39,320 INFO L226 Difference]: Without dead ends: 4917 [2020-11-09 15:48:39,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 15:48:39,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-11-09 15:48:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-11-09 15:48:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-11-09 15:48:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-11-09 15:48:39,471 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-11-09 15:48:39,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:39,472 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-11-09 15:48:39,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 15:48:39,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-11-09 15:48:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:48:39,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:39,473 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:48:39,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:48:39,687 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 15:48:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash 672549000, now seen corresponding path program 2 times [2020-11-09 15:48:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:39,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37341687] [2020-11-09 15:48:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:39,796 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 15:48:39,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37341687] [2020-11-09 15:48:39,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550985179] [2020-11-09 15:48:39,797 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 15:48:39,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:48:39,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:39,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:48:39,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:40,005 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 15:48:40,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:40,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 15:48:40,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1559876974] [2020-11-09 15:48:40,006 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:40,009 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:40,012 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 15:48:40,012 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:40,012 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:48:40,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 15:48:40,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:40,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 15:48:40,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 15:48:40,014 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 11 states. [2020-11-09 15:48:40,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:40,749 INFO L93 Difference]: Finished difference Result 5685 states and 19422 transitions. [2020-11-09 15:48:40,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:48:40,750 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 15:48:40,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:40,766 INFO L225 Difference]: With dead ends: 5685 [2020-11-09 15:48:40,766 INFO L226 Difference]: Without dead ends: 5668 [2020-11-09 15:48:40,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 15:48:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5668 states. [2020-11-09 15:48:40,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5668 to 2150. [2020-11-09 15:48:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-11-09 15:48:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-11-09 15:48:40,872 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-11-09 15:48:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:40,873 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-11-09 15:48:40,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 15:48:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-11-09 15:48:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:48:40,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:40,875 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 15:48:41,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-09 15:48:41,089 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 15:48:41,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:41,090 INFO L82 PathProgramCache]: Analyzing trace with hash -269569723, now seen corresponding path program 1 times [2020-11-09 15:48:41,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:41,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094077908] [2020-11-09 15:48:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:41,191 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 15:48:41,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094077908] [2020-11-09 15:48:41,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087894277] [2020-11-09 15:48:41,192 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 15:48:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:41,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:48:41,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:41,554 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 15:48:41,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:41,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 15:48:41,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1588724820] [2020-11-09 15:48:41,555 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:41,558 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:41,566 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions. [2020-11-09 15:48:41,566 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:41,933 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 15:48:41,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 15:48:41,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:41,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 15:48:41,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 15:48:41,935 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 22 states. [2020-11-09 15:48:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:49,039 INFO L93 Difference]: Finished difference Result 10390 states and 30626 transitions. [2020-11-09 15:48:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-11-09 15:48:49,040 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2020-11-09 15:48:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:49,070 INFO L225 Difference]: With dead ends: 10390 [2020-11-09 15:48:49,070 INFO L226 Difference]: Without dead ends: 10362 [2020-11-09 15:48:49,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9094 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3919, Invalid=21203, Unknown=0, NotChecked=0, Total=25122 [2020-11-09 15:48:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2020-11-09 15:48:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 2180. [2020-11-09 15:48:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-11-09 15:48:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 8393 transitions. [2020-11-09 15:48:49,324 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 8393 transitions. Word has length 21 [2020-11-09 15:48:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:49,324 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 8393 transitions. [2020-11-09 15:48:49,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 15:48:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 8393 transitions. [2020-11-09 15:48:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:48:49,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:49,327 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 15:48:49,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:48:49,528 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 15:48:49,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:49,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1775417131, now seen corresponding path program 2 times [2020-11-09 15:48:49,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:49,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846229747] [2020-11-09 15:48:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:49,660 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 15:48:49,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846229747] [2020-11-09 15:48:49,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492841144] [2020-11-09 15:48:49,660 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 15:48:49,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:48:49,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:49,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:48:49,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:49,952 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 15:48:49,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:49,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:48:49,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [390526675] [2020-11-09 15:48:49,953 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:49,954 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:49,962 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 15:48:49,962 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:50,135 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 15:48:50,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 15:48:50,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:50,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 15:48:50,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2020-11-09 15:48:50,137 INFO L87 Difference]: Start difference. First operand 2180 states and 8393 transitions. Second operand 20 states. [2020-11-09 15:48:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:48:54,491 INFO L93 Difference]: Finished difference Result 7560 states and 22845 transitions. [2020-11-09 15:48:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-11-09 15:48:54,492 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-11-09 15:48:54,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:48:54,506 INFO L225 Difference]: With dead ends: 7560 [2020-11-09 15:48:54,507 INFO L226 Difference]: Without dead ends: 7539 [2020-11-09 15:48:54,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3588 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1919, Invalid=9423, Unknown=0, NotChecked=0, Total=11342 [2020-11-09 15:48:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2020-11-09 15:48:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 2148. [2020-11-09 15:48:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2020-11-09 15:48:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 8262 transitions. [2020-11-09 15:48:54,646 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 8262 transitions. Word has length 21 [2020-11-09 15:48:54,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:48:54,646 INFO L481 AbstractCegarLoop]: Abstraction has 2148 states and 8262 transitions. [2020-11-09 15:48:54,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 15:48:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 8262 transitions. [2020-11-09 15:48:54,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:48:54,648 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:48:54,649 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 15:48:54,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-09 15:48:54,864 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 15:48:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:48:54,865 INFO L82 PathProgramCache]: Analyzing trace with hash -258131359, now seen corresponding path program 3 times [2020-11-09 15:48:54,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:48:54,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321630498] [2020-11-09 15:48:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:48:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:48:54,974 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 15:48:54,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321630498] [2020-11-09 15:48:54,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602515842] [2020-11-09 15:48:54,975 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 15:48:55,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-09 15:48:55,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:48:55,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:48:55,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:48:55,290 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 15:48:55,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:48:55,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:48:55,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1810613696] [2020-11-09 15:48:55,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:48:55,294 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:48:55,301 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 15:48:55,301 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:48:55,563 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 15:48:55,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 15:48:55,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:48:55,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 15:48:55,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2020-11-09 15:48:55,565 INFO L87 Difference]: Start difference. First operand 2148 states and 8262 transitions. Second operand 21 states. [2020-11-09 15:49:03,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:03,171 INFO L93 Difference]: Finished difference Result 9786 states and 29087 transitions. [2020-11-09 15:49:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2020-11-09 15:49:03,175 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2020-11-09 15:49:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:03,201 INFO L225 Difference]: With dead ends: 9786 [2020-11-09 15:49:03,201 INFO L226 Difference]: Without dead ends: 9770 [2020-11-09 15:49:03,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9495 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3998, Invalid=21762, Unknown=0, NotChecked=0, Total=25760 [2020-11-09 15:49:03,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2020-11-09 15:49:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 2008. [2020-11-09 15:49:03,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-11-09 15:49:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-11-09 15:49:03,359 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-11-09 15:49:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:03,360 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-11-09 15:49:03,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 15:49:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-11-09 15:49:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:03,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:03,363 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 15:49:03,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-09 15:49:03,578 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 15:49:03,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:03,578 INFO L82 PathProgramCache]: Analyzing trace with hash -363208635, now seen corresponding path program 4 times [2020-11-09 15:49:03,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:03,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50800180] [2020-11-09 15:49:03,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:03,712 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 15:49:03,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50800180] [2020-11-09 15:49:03,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797697756] [2020-11-09 15:49:03,712 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 15:49:03,800 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 15:49:03,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:03,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:03,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:04,020 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 15:49:04,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:04,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:49:04,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1350408809] [2020-11-09 15:49:04,021 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:04,024 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:04,030 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions. [2020-11-09 15:49:04,031 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:04,152 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 15:49:04,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-09 15:49:04,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:04,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-09 15:49:04,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2020-11-09 15:49:04,154 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 17 states. [2020-11-09 15:49:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:08,168 INFO L93 Difference]: Finished difference Result 7307 states and 22070 transitions. [2020-11-09 15:49:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-11-09 15:49:08,174 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-11-09 15:49:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:08,192 INFO L225 Difference]: With dead ends: 7307 [2020-11-09 15:49:08,192 INFO L226 Difference]: Without dead ends: 7286 [2020-11-09 15:49:08,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1539, Invalid=7391, Unknown=0, NotChecked=0, Total=8930 [2020-11-09 15:49:08,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7286 states. [2020-11-09 15:49:08,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7286 to 1976. [2020-11-09 15:49:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-11-09 15:49:08,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-11-09 15:49:08,302 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-11-09 15:49:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:08,302 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-11-09 15:49:08,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-09 15:49:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-11-09 15:49:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:08,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:08,304 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:08,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-09 15:49:08,514 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 15:49:08,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:08,515 INFO L82 PathProgramCache]: Analyzing trace with hash 123808083, now seen corresponding path program 1 times [2020-11-09 15:49:08,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:08,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336060259] [2020-11-09 15:49:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:08,559 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 15:49:08,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336060259] [2020-11-09 15:49:08,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:49:08,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:49:08,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [103070466] [2020-11-09 15:49:08,560 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:08,562 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:08,566 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:49:08,566 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:08,566 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:08,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:49:08,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:08,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:49:08,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:49:08,568 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-11-09 15:49:08,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:08,720 INFO L93 Difference]: Finished difference Result 3496 states and 12265 transitions. [2020-11-09 15:49:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:49:08,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 15:49:08,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:08,729 INFO L225 Difference]: With dead ends: 3496 [2020-11-09 15:49:08,729 INFO L226 Difference]: Without dead ends: 3480 [2020-11-09 15:49:08,730 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 15:49:08,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2020-11-09 15:49:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2183. [2020-11-09 15:49:08,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-11-09 15:49:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-11-09 15:49:08,788 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-11-09 15:49:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:08,788 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-11-09 15:49:08,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:49:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-11-09 15:49:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:08,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:08,790 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 15:49:08,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-09 15:49:08,791 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 15:49:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:08,791 INFO L82 PathProgramCache]: Analyzing trace with hash 2069103787, now seen corresponding path program 5 times [2020-11-09 15:49:08,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:08,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239934198] [2020-11-09 15:49:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:08,944 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 15:49:08,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239934198] [2020-11-09 15:49:08,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444192006] [2020-11-09 15:49:08,945 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 15:49:09,024 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-11-09 15:49:09,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:09,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:09,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:09,227 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 15:49:09,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:09,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:49:09,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [81560932] [2020-11-09 15:49:09,228 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:09,230 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:09,233 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:49:09,233 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:09,234 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:09,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 15:49:09,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:09,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 15:49:09,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:49:09,235 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 13 states. [2020-11-09 15:49:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:11,030 INFO L93 Difference]: Finished difference Result 6822 states and 21016 transitions. [2020-11-09 15:49:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-09 15:49:11,031 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 15:49:11,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:11,046 INFO L225 Difference]: With dead ends: 6822 [2020-11-09 15:49:11,046 INFO L226 Difference]: Without dead ends: 6811 [2020-11-09 15:49:11,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=764, Invalid=3268, Unknown=0, NotChecked=0, Total=4032 [2020-11-09 15:49:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6811 states. [2020-11-09 15:49:11,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6811 to 2096. [2020-11-09 15:49:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-11-09 15:49:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-11-09 15:49:11,159 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-11-09 15:49:11,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:11,159 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-11-09 15:49:11,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 15:49:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-11-09 15:49:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:11,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:11,161 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 15:49:11,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:49:11,370 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 15:49:11,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash 2074490347, now seen corresponding path program 6 times [2020-11-09 15:49:11,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:11,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008172374] [2020-11-09 15:49:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:11,508 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 15:49:11,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008172374] [2020-11-09 15:49:11,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331735904] [2020-11-09 15:49:11,509 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 15:49:11,613 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-11-09 15:49:11,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:11,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:11,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:11,812 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 15:49:11,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:11,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:49:11,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [488351587] [2020-11-09 15:49:11,813 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:11,815 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:11,819 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:49:11,819 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:11,819 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:11,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 15:49:11,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:11,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 15:49:11,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:49:11,821 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 13 states. [2020-11-09 15:49:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:13,491 INFO L93 Difference]: Finished difference Result 8632 states and 27326 transitions. [2020-11-09 15:49:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 15:49:13,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 15:49:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:13,511 INFO L225 Difference]: With dead ends: 8632 [2020-11-09 15:49:13,511 INFO L226 Difference]: Without dead ends: 8617 [2020-11-09 15:49:13,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=731, Invalid=3051, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 15:49:13,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2020-11-09 15:49:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 1965. [2020-11-09 15:49:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-11-09 15:49:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-11-09 15:49:13,645 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-11-09 15:49:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:13,645 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-11-09 15:49:13,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 15:49:13,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-11-09 15:49:13,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-09 15:49:13,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:13,647 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:13,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:49:13,852 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 15:49:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:13,852 INFO L82 PathProgramCache]: Analyzing trace with hash -463541898, now seen corresponding path program 1 times [2020-11-09 15:49:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:13,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523343833] [2020-11-09 15:49:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:49:13,865 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:49:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 15:49:13,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 15:49:13,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 15:49:13,883 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 15:49:13,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-09 15:49:13,883 WARN L386 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-11-09 15:49:13,883 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-11-09 15:49:13,898 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,898 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,898 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,898 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,902 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,903 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,904 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,905 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,906 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,907 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,908 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,909 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,910 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,911 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,912 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,913 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,914 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,915 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,916 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,917 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,918 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,921 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,922 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,923 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,924 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,925 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,926 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,927 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,928 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,929 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,930 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,939 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,939 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,939 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,939 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,939 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,940 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,940 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,941 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,941 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,942 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,942 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,942 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,943 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,944 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,944 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,946 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,946 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:49:13,947 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:49:13,947 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-09 15:49:13,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:49:13,948 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:49:13,948 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:49:13,948 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:49:13,948 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:49:13,948 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:49:13,948 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:49:13,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:49:13,950 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:49:13,950 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 162 transitions, 414 flow [2020-11-09 15:49:13,951 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 162 transitions, 414 flow [2020-11-09 15:49:13,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 162 transitions, 414 flow [2020-11-09 15:49:13,975 INFO L129 PetriNetUnfolder]: 9/168 cut-off events. [2020-11-09 15:49:13,975 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-11-09 15:49:13,977 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 15:49:13,983 INFO L116 LiptonReduction]: Number of co-enabled transitions 3390 [2020-11-09 15:49:18,742 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-11-09 15:49:18,989 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-11-09 15:49:19,813 WARN L194 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 15:49:19,933 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-09 15:49:20,259 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-11-09 15:49:20,392 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-09 15:49:20,615 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-09 15:49:20,886 WARN L194 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-09 15:49:21,049 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-09 15:49:21,217 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-09 15:49:21,388 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-09 15:49:21,393 INFO L131 LiptonReduction]: Checked pairs total: 4734 [2020-11-09 15:49:21,393 INFO L133 LiptonReduction]: Total number of compositions: 175 [2020-11-09 15:49:21,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-11-09 15:49:21,711 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-11-09 15:49:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-11-09 15:49:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-09 15:49:21,711 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:21,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-09 15:49:21,712 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 15:49:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:21,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1424171, now seen corresponding path program 1 times [2020-11-09 15:49:21,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:21,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473282958] [2020-11-09 15:49:21,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:21,736 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 15:49:21,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473282958] [2020-11-09 15:49:21,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:49:21,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:49:21,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [695130939] [2020-11-09 15:49:21,737 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:21,738 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:21,739 INFO L252 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-11-09 15:49:21,739 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:21,739 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:21,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:49:21,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:21,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:49:21,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:49:21,740 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-11-09 15:49:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:21,834 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-11-09 15:49:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:49:21,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-09 15:49:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:21,852 INFO L225 Difference]: With dead ends: 5844 [2020-11-09 15:49:21,853 INFO L226 Difference]: Without dead ends: 5479 [2020-11-09 15:49:21,853 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 15:49:21,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-11-09 15:49:22,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-11-09 15:49:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-11-09 15:49:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-11-09 15:49:22,050 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-11-09 15:49:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:22,051 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-11-09 15:49:22,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:49:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-11-09 15:49:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:49:22,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:22,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:22,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-09 15:49:22,051 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 15:49:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2117777747, now seen corresponding path program 1 times [2020-11-09 15:49:22,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:22,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276949033] [2020-11-09 15:49:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:22,093 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 15:49:22,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276949033] [2020-11-09 15:49:22,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:49:22,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:49:22,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [547481478] [2020-11-09 15:49:22,094 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:22,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:22,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 15:49:22,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:22,096 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:22,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:49:22,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:22,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:49:22,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:49:22,097 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-11-09 15:49:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:22,279 INFO L93 Difference]: Finished difference Result 11373 states and 46632 transitions. [2020-11-09 15:49:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:49:22,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 15:49:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:22,430 INFO L225 Difference]: With dead ends: 11373 [2020-11-09 15:49:22,431 INFO L226 Difference]: Without dead ends: 11366 [2020-11-09 15:49:22,431 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 15:49:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2020-11-09 15:49:22,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 6331. [2020-11-09 15:49:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-11-09 15:49:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-11-09 15:49:22,665 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-11-09 15:49:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:22,665 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-11-09 15:49:22,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:49:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-11-09 15:49:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:49:22,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:22,666 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:22,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-09 15:49:22,666 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 15:49:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:22,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2072429311, now seen corresponding path program 1 times [2020-11-09 15:49:22,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:22,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555294924] [2020-11-09 15:49:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:22,850 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 15:49:22,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555294924] [2020-11-09 15:49:22,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:49:22,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:49:22,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [66684802] [2020-11-09 15:49:22,851 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:22,853 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:22,854 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 15:49:22,854 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:22,854 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:22,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:49:22,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:22,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:49:22,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:49:22,856 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-11-09 15:49:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:23,065 INFO L93 Difference]: Finished difference Result 12785 states and 53129 transitions. [2020-11-09 15:49:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:49:23,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:49:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:23,101 INFO L225 Difference]: With dead ends: 12785 [2020-11-09 15:49:23,101 INFO L226 Difference]: Without dead ends: 12772 [2020-11-09 15:49:23,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:49:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2020-11-09 15:49:23,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 7391. [2020-11-09 15:49:23,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-11-09 15:49:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-11-09 15:49:23,396 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-11-09 15:49:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:23,396 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-11-09 15:49:23,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:49:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-11-09 15:49:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:49:23,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:23,397 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:23,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-09 15:49:23,397 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 15:49:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:23,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1017397189, now seen corresponding path program 1 times [2020-11-09 15:49:23,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:23,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012485471] [2020-11-09 15:49:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:23,511 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 15:49:23,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012485471] [2020-11-09 15:49:23,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328337813] [2020-11-09 15:49:23,511 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 15:49:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:23,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:49:23,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:23,762 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 15:49:23,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:23,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:49:23,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [347062781] [2020-11-09 15:49:23,763 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:23,765 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:23,767 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 31 transitions. [2020-11-09 15:49:23,767 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:23,947 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 15:49:23,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 15:49:23,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:23,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 15:49:23,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:49:23,948 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 16 states. [2020-11-09 15:49:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:25,485 INFO L93 Difference]: Finished difference Result 22290 states and 85387 transitions. [2020-11-09 15:49:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-09 15:49:25,486 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2020-11-09 15:49:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:25,547 INFO L225 Difference]: With dead ends: 22290 [2020-11-09 15:49:25,547 INFO L226 Difference]: Without dead ends: 22265 [2020-11-09 15:49:25,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=413, Invalid=1939, Unknown=0, NotChecked=0, Total=2352 [2020-11-09 15:49:25,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22265 states. [2020-11-09 15:49:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 7303. [2020-11-09 15:49:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-11-09 15:49:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-11-09 15:49:26,032 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-11-09 15:49:26,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:26,032 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-11-09 15:49:26,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 15:49:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-11-09 15:49:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:49:26,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:26,033 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:26,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-11-09 15:49:26,238 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 15:49:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1260267579, now seen corresponding path program 2 times [2020-11-09 15:49:26,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:26,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963311422] [2020-11-09 15:49:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:26,321 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 15:49:26,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963311422] [2020-11-09 15:49:26,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517728346] [2020-11-09 15:49:26,322 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 15:49:26,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:49:26,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:26,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:49:26,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:26,546 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 15:49:26,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:26,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 16 [2020-11-09 15:49:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [52758656] [2020-11-09 15:49:26,548 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:26,549 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:26,550 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-11-09 15:49:26,550 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:26,550 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:26,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:49:26,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:26,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:49:26,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-11-09 15:49:26,551 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 10 states. [2020-11-09 15:49:27,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:27,359 INFO L93 Difference]: Finished difference Result 19533 states and 76146 transitions. [2020-11-09 15:49:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:49:27,360 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 15:49:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:27,626 INFO L225 Difference]: With dead ends: 19533 [2020-11-09 15:49:27,626 INFO L226 Difference]: Without dead ends: 19519 [2020-11-09 15:49:27,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 15:49:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19519 states. [2020-11-09 15:49:28,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19519 to 7048. [2020-11-09 15:49:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-11-09 15:49:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-11-09 15:49:28,142 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-11-09 15:49:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:28,142 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-11-09 15:49:28,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:49:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-11-09 15:49:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:49:28,143 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:28,143 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:28,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:49:28,353 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 15:49:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:28,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1517776040, now seen corresponding path program 1 times [2020-11-09 15:49:28,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:28,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492663969] [2020-11-09 15:49:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:28,404 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 15:49:28,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492663969] [2020-11-09 15:49:28,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:49:28,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:49:28,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1278281480] [2020-11-09 15:49:28,405 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:28,408 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:28,410 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-11-09 15:49:28,411 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:28,411 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:28,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:49:28,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:28,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:49:28,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:49:28,413 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-11-09 15:49:28,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:28,728 INFO L93 Difference]: Finished difference Result 13942 states and 58799 transitions. [2020-11-09 15:49:28,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:49:28,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 15:49:28,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:28,795 INFO L225 Difference]: With dead ends: 13942 [2020-11-09 15:49:28,795 INFO L226 Difference]: Without dead ends: 13920 [2020-11-09 15:49:28,796 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 15:49:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13920 states. [2020-11-09 15:49:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13920 to 8342. [2020-11-09 15:49:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-11-09 15:49:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-11-09 15:49:29,347 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-11-09 15:49:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:29,347 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-11-09 15:49:29,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:49:29,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-11-09 15:49:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:49:29,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:29,348 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:29,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-09 15:49:29,349 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 15:49:29,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:29,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1852718366, now seen corresponding path program 1 times [2020-11-09 15:49:29,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:29,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271689210] [2020-11-09 15:49:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:29,580 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-11-09 15:49:29,623 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 15:49:29,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271689210] [2020-11-09 15:49:29,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939777857] [2020-11-09 15:49:29,624 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 15:49:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:29,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 15:49:29,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:29,899 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 15:49:29,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:29,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 15:49:29,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1997506269] [2020-11-09 15:49:29,900 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:29,903 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:29,909 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 51 transitions. [2020-11-09 15:49:29,910 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:30,209 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 15:49:30,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 15:49:30,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:30,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 15:49:30,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2020-11-09 15:49:30,211 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 18 states. [2020-11-09 15:49:32,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:32,339 INFO L93 Difference]: Finished difference Result 22461 states and 87886 transitions. [2020-11-09 15:49:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-09 15:49:32,340 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2020-11-09 15:49:32,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:32,438 INFO L225 Difference]: With dead ends: 22461 [2020-11-09 15:49:32,438 INFO L226 Difference]: Without dead ends: 22428 [2020-11-09 15:49:32,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=592, Invalid=2948, Unknown=0, NotChecked=0, Total=3540 [2020-11-09 15:49:32,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22428 states. [2020-11-09 15:49:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22428 to 8452. [2020-11-09 15:49:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-11-09 15:49:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-11-09 15:49:32,985 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-11-09 15:49:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:32,985 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-11-09 15:49:32,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 15:49:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-11-09 15:49:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:49:32,986 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:32,986 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:33,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-11-09 15:49:33,187 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 15:49:33,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:33,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1279905423, now seen corresponding path program 1 times [2020-11-09 15:49:33,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:33,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849893917] [2020-11-09 15:49:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:33,292 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 15:49:33,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849893917] [2020-11-09 15:49:33,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168410568] [2020-11-09 15:49:33,293 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 15:49:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:33,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-09 15:49:33,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:33,566 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 15:49:33,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:33,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-11-09 15:49:33,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2122849195] [2020-11-09 15:49:33,567 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:33,569 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:33,574 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 35 transitions. [2020-11-09 15:49:33,574 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:33,711 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 15:49:33,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-09 15:49:33,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:33,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-09 15:49:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2020-11-09 15:49:33,712 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 16 states. [2020-11-09 15:49:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:35,791 INFO L93 Difference]: Finished difference Result 23160 states and 91054 transitions. [2020-11-09 15:49:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-09 15:49:35,792 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-11-09 15:49:35,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:35,983 INFO L225 Difference]: With dead ends: 23160 [2020-11-09 15:49:35,983 INFO L226 Difference]: Without dead ends: 23117 [2020-11-09 15:49:35,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=605, Invalid=2475, Unknown=0, NotChecked=0, Total=3080 [2020-11-09 15:49:36,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2020-11-09 15:49:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 8480. [2020-11-09 15:49:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-11-09 15:49:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-11-09 15:49:36,362 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-11-09 15:49:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:36,362 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-11-09 15:49:36,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-09 15:49:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-11-09 15:49:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:49:36,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:36,363 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:36,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-11-09 15:49:36,565 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 15:49:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:36,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1706062769, now seen corresponding path program 2 times [2020-11-09 15:49:36,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:36,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543157431] [2020-11-09 15:49:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:36,664 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 15:49:36,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543157431] [2020-11-09 15:49:36,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850890922] [2020-11-09 15:49:36,664 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 15:49:36,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:49:36,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:36,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:49:36,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:37,057 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 15:49:37,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:37,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 15:49:37,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1575246955] [2020-11-09 15:49:37,059 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:37,061 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:37,064 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 15:49:37,064 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:37,064 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:37,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 15:49:37,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:37,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 15:49:37,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 15:49:37,066 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 11 states. [2020-11-09 15:49:38,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:38,001 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-11-09 15:49:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:49:38,002 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 15:49:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:38,063 INFO L225 Difference]: With dead ends: 19852 [2020-11-09 15:49:38,063 INFO L226 Difference]: Without dead ends: 19827 [2020-11-09 15:49:38,064 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 15:49:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-11-09 15:49:38,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-11-09 15:49:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-11-09 15:49:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-11-09 15:49:38,588 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-11-09 15:49:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:38,588 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-11-09 15:49:38,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 15:49:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-11-09 15:49:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-09 15:49:38,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:38,590 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:49:38,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:49:38,790 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 15:49:38,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:38,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1706096094, now seen corresponding path program 2 times [2020-11-09 15:49:38,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:38,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761101825] [2020-11-09 15:49:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:38,894 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 15:49:38,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761101825] [2020-11-09 15:49:38,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585932634] [2020-11-09 15:49:38,895 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 15:49:38,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:49:38,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:38,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:49:38,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:39,137 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 15:49:39,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:39,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2020-11-09 15:49:39,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1800769344] [2020-11-09 15:49:39,138 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:39,140 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:39,143 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 19 transitions. [2020-11-09 15:49:39,143 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:39,143 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:49:39,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-09 15:49:39,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:39,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-09 15:49:39,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-11-09 15:49:39,145 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 11 states. [2020-11-09 15:49:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:40,124 INFO L93 Difference]: Finished difference Result 22539 states and 92825 transitions. [2020-11-09 15:49:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-09 15:49:40,125 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-11-09 15:49:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:40,194 INFO L225 Difference]: With dead ends: 22539 [2020-11-09 15:49:40,194 INFO L226 Difference]: Without dead ends: 22514 [2020-11-09 15:49:40,195 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 15:49:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22514 states. [2020-11-09 15:49:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22514 to 8317. [2020-11-09 15:49:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-11-09 15:49:40,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-11-09 15:49:40,730 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-11-09 15:49:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:40,730 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-11-09 15:49:40,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-09 15:49:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-11-09 15:49:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:40,732 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:40,732 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 15:49:40,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-11-09 15:49:40,933 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 15:49:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:40,933 INFO L82 PathProgramCache]: Analyzing trace with hash -640122441, now seen corresponding path program 1 times [2020-11-09 15:49:40,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:40,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732742509] [2020-11-09 15:49:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:41,048 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 15:49:41,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732742509] [2020-11-09 15:49:41,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459966526] [2020-11-09 15:49:41,049 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 15:49:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:41,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:41,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:41,370 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 15:49:41,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:41,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 15:49:41,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1735452730] [2020-11-09 15:49:41,371 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:41,373 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:41,379 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 69 transitions. [2020-11-09 15:49:41,379 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:42,105 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 15:49:42,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-09 15:49:42,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:42,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-09 15:49:42,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2020-11-09 15:49:42,106 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 23 states. [2020-11-09 15:49:49,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:49,046 INFO L93 Difference]: Finished difference Result 43908 states and 158627 transitions. [2020-11-09 15:49:49,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-11-09 15:49:49,047 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 21 [2020-11-09 15:49:49,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:49,166 INFO L225 Difference]: With dead ends: 43908 [2020-11-09 15:49:49,166 INFO L226 Difference]: Without dead ends: 43868 [2020-11-09 15:49:49,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7956 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3380, Invalid=18970, Unknown=0, NotChecked=0, Total=22350 [2020-11-09 15:49:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43868 states. [2020-11-09 15:49:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43868 to 8404. [2020-11-09 15:49:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8404 states. [2020-11-09 15:49:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 38687 transitions. [2020-11-09 15:49:50,062 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 38687 transitions. Word has length 21 [2020-11-09 15:49:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:50,062 INFO L481 AbstractCegarLoop]: Abstraction has 8404 states and 38687 transitions. [2020-11-09 15:49:50,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-09 15:49:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 38687 transitions. [2020-11-09 15:49:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:50,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:50,063 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 15:49:50,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-11-09 15:49:50,264 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 15:49:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1949121545, now seen corresponding path program 2 times [2020-11-09 15:49:50,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:50,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678172765] [2020-11-09 15:49:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:50,398 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 15:49:50,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678172765] [2020-11-09 15:49:50,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163313376] [2020-11-09 15:49:50,398 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 15:49:50,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:49:50,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:50,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:50,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:50,850 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 15:49:50,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:50,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:49:50,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2143965662] [2020-11-09 15:49:50,851 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:50,852 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:50,857 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 15:49:50,858 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:51,191 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 15:49:51,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 15:49:51,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:51,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 15:49:51,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2020-11-09 15:49:51,193 INFO L87 Difference]: Start difference. First operand 8404 states and 38687 transitions. Second operand 20 states. [2020-11-09 15:49:56,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:49:56,228 INFO L93 Difference]: Finished difference Result 35915 states and 131368 transitions. [2020-11-09 15:49:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-11-09 15:49:56,231 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-11-09 15:49:56,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:49:56,328 INFO L225 Difference]: With dead ends: 35915 [2020-11-09 15:49:56,329 INFO L226 Difference]: Without dead ends: 35884 [2020-11-09 15:49:56,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4092 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1882, Invalid=10550, Unknown=0, NotChecked=0, Total=12432 [2020-11-09 15:49:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35884 states. [2020-11-09 15:49:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35884 to 8291. [2020-11-09 15:49:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8291 states. [2020-11-09 15:49:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8291 states to 8291 states and 38135 transitions. [2020-11-09 15:49:57,107 INFO L78 Accepts]: Start accepts. Automaton has 8291 states and 38135 transitions. Word has length 21 [2020-11-09 15:49:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:49:57,107 INFO L481 AbstractCegarLoop]: Abstraction has 8291 states and 38135 transitions. [2020-11-09 15:49:57,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 15:49:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8291 states and 38135 transitions. [2020-11-09 15:49:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:49:57,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:49:57,109 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 15:49:57,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:49:57,309 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 15:49:57,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:49:57,310 INFO L82 PathProgramCache]: Analyzing trace with hash 595859895, now seen corresponding path program 3 times [2020-11-09 15:49:57,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:49:57,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286486098] [2020-11-09 15:49:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:49:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:49:57,445 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 15:49:57,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286486098] [2020-11-09 15:49:57,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074913258] [2020-11-09 15:49:57,446 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 15:49:57,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-09 15:49:57,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:49:57,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:49:57,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:49:57,801 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 15:49:57,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:49:57,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2020-11-09 15:49:57,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [238421884] [2020-11-09 15:49:57,803 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:49:57,804 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:49:57,810 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 15:49:57,810 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:49:58,146 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 15:49:58,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-09 15:49:58,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:49:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-09 15:49:58,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2020-11-09 15:49:58,147 INFO L87 Difference]: Start difference. First operand 8291 states and 38135 transitions. Second operand 21 states. [2020-11-09 15:50:07,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:07,052 INFO L93 Difference]: Finished difference Result 46520 states and 166387 transitions. [2020-11-09 15:50:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2020-11-09 15:50:07,053 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2020-11-09 15:50:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:07,174 INFO L225 Difference]: With dead ends: 46520 [2020-11-09 15:50:07,174 INFO L226 Difference]: Without dead ends: 46496 [2020-11-09 15:50:07,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9094 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3978, Invalid=21144, Unknown=0, NotChecked=0, Total=25122 [2020-11-09 15:50:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46496 states. [2020-11-09 15:50:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46496 to 7861. [2020-11-09 15:50:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-11-09 15:50:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-11-09 15:50:08,182 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-11-09 15:50:08,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:08,182 INFO L481 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-11-09 15:50:08,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-09 15:50:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-11-09 15:50:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:50:08,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:08,184 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 15:50:08,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-11-09 15:50:08,399 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 15:50:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1628474953, now seen corresponding path program 4 times [2020-11-09 15:50:08,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:08,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378933446] [2020-11-09 15:50:08,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:08,561 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 15:50:08,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378933446] [2020-11-09 15:50:08,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553501706] [2020-11-09 15:50:08,562 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 15:50:08,655 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-09 15:50:08,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:08,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:50:08,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:08,890 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 15:50:08,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:08,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:50:08,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [612697086] [2020-11-09 15:50:08,890 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:08,893 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:08,897 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 37 transitions. [2020-11-09 15:50:08,897 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:09,070 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 15:50:09,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 15:50:09,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:09,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 15:50:09,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2020-11-09 15:50:09,072 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 18 states. [2020-11-09 15:50:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:14,766 INFO L93 Difference]: Finished difference Result 34092 states and 124290 transitions. [2020-11-09 15:50:14,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-11-09 15:50:14,767 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 21 [2020-11-09 15:50:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:14,862 INFO L225 Difference]: With dead ends: 34092 [2020-11-09 15:50:14,862 INFO L226 Difference]: Without dead ends: 34061 [2020-11-09 15:50:14,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3408 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1731, Invalid=8775, Unknown=0, NotChecked=0, Total=10506 [2020-11-09 15:50:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34061 states. [2020-11-09 15:50:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34061 to 7748. [2020-11-09 15:50:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-11-09 15:50:15,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-11-09 15:50:15,537 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-11-09 15:50:15,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:15,538 INFO L481 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-11-09 15:50:15,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 15:50:15,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-11-09 15:50:15,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:50:15,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:15,539 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 15:50:15,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:50:15,747 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 15:50:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:15,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1151196169, now seen corresponding path program 5 times [2020-11-09 15:50:15,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:15,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620581085] [2020-11-09 15:50:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:15,902 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 15:50:15,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620581085] [2020-11-09 15:50:15,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898894404] [2020-11-09 15:50:15,903 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 15:50:15,994 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-11-09 15:50:15,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:15,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:50:15,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:16,244 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 15:50:16,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:16,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:50:16,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1843522702] [2020-11-09 15:50:16,245 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:16,247 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:16,250 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:50:16,250 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:16,250 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:16,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 15:50:16,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:16,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 15:50:16,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:50:16,251 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 13 states. [2020-11-09 15:50:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:18,605 INFO L93 Difference]: Finished difference Result 29794 states and 111014 transitions. [2020-11-09 15:50:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-09 15:50:18,607 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 15:50:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:18,837 INFO L225 Difference]: With dead ends: 29794 [2020-11-09 15:50:18,838 INFO L226 Difference]: Without dead ends: 29782 [2020-11-09 15:50:18,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=764, Invalid=3268, Unknown=0, NotChecked=0, Total=4032 [2020-11-09 15:50:19,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29782 states. [2020-11-09 15:50:19,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29782 to 7526. [2020-11-09 15:50:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7526 states. [2020-11-09 15:50:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 34524 transitions. [2020-11-09 15:50:19,480 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 34524 transitions. Word has length 21 [2020-11-09 15:50:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:19,480 INFO L481 AbstractCegarLoop]: Abstraction has 7526 states and 34524 transitions. [2020-11-09 15:50:19,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 15:50:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 34524 transitions. [2020-11-09 15:50:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:50:19,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:19,482 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 15:50:19,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-11-09 15:50:19,683 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 15:50:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:19,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1119204169, now seen corresponding path program 6 times [2020-11-09 15:50:19,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:19,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756247394] [2020-11-09 15:50:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:19,835 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 15:50:19,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756247394] [2020-11-09 15:50:19,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87282953] [2020-11-09 15:50:19,836 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 15:50:19,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-11-09 15:50:19,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:19,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:50:19,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:20,188 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 15:50:20,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:20,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2020-11-09 15:50:20,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [126342985] [2020-11-09 15:50:20,190 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:20,192 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:20,196 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:50:20,197 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:20,197 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:20,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-09 15:50:20,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:20,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-09 15:50:20,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-11-09 15:50:20,198 INFO L87 Difference]: Start difference. First operand 7526 states and 34524 transitions. Second operand 13 states. [2020-11-09 15:50:22,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:22,692 INFO L93 Difference]: Finished difference Result 34727 states and 132612 transitions. [2020-11-09 15:50:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 15:50:22,693 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-11-09 15:50:22,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:22,802 INFO L225 Difference]: With dead ends: 34727 [2020-11-09 15:50:22,802 INFO L226 Difference]: Without dead ends: 34710 [2020-11-09 15:50:22,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=731, Invalid=3051, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 15:50:22,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34710 states. [2020-11-09 15:50:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34710 to 7221. [2020-11-09 15:50:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7221 states. [2020-11-09 15:50:23,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 33268 transitions. [2020-11-09 15:50:23,617 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 33268 transitions. Word has length 21 [2020-11-09 15:50:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:23,617 INFO L481 AbstractCegarLoop]: Abstraction has 7221 states and 33268 transitions. [2020-11-09 15:50:23,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-09 15:50:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 33268 transitions. [2020-11-09 15:50:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-09 15:50:23,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:23,620 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:23,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-11-09 15:50:23,826 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 15:50:23,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash -721565217, now seen corresponding path program 1 times [2020-11-09 15:50:23,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:23,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748931028] [2020-11-09 15:50:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:23,877 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 15:50:23,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748931028] [2020-11-09 15:50:23,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:50:23,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:50:23,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1300805940] [2020-11-09 15:50:23,878 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:23,880 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:23,884 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-11-09 15:50:23,885 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:23,885 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:23,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:50:23,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:23,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:50:23,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:50:23,886 INFO L87 Difference]: Start difference. First operand 7221 states and 33268 transitions. Second operand 5 states. [2020-11-09 15:50:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:24,140 INFO L93 Difference]: Finished difference Result 14122 states and 60315 transitions. [2020-11-09 15:50:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:50:24,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-09 15:50:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:24,183 INFO L225 Difference]: With dead ends: 14122 [2020-11-09 15:50:24,183 INFO L226 Difference]: Without dead ends: 14091 [2020-11-09 15:50:24,183 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 15:50:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14091 states. [2020-11-09 15:50:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14091 to 8573. [2020-11-09 15:50:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-11-09 15:50:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-11-09 15:50:24,689 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-11-09 15:50:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:24,689 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-11-09 15:50:24,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:50:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-11-09 15:50:24,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:24,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:24,692 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:24,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-11-09 15:50:24,692 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 15:50:24,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:24,693 INFO L82 PathProgramCache]: Analyzing trace with hash -70442843, now seen corresponding path program 1 times [2020-11-09 15:50:24,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:24,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114067060] [2020-11-09 15:50:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:24,859 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 15:50:24,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114067060] [2020-11-09 15:50:24,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723612300] [2020-11-09 15:50:24,860 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 15:50:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:24,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 15:50:24,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:25,246 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 15:50:25,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:25,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 15:50:25,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1585327157] [2020-11-09 15:50:25,247 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:25,250 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:25,258 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 71 transitions. [2020-11-09 15:50:25,258 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:25,677 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 15:50:25,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-09 15:50:25,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:25,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-09 15:50:25,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2020-11-09 15:50:25,679 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 20 states. [2020-11-09 15:50:28,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:28,597 INFO L93 Difference]: Finished difference Result 22923 states and 91185 transitions. [2020-11-09 15:50:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-09 15:50:28,598 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2020-11-09 15:50:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:28,660 INFO L225 Difference]: With dead ends: 22923 [2020-11-09 15:50:28,660 INFO L226 Difference]: Without dead ends: 22881 [2020-11-09 15:50:28,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=734, Invalid=3556, Unknown=0, NotChecked=0, Total=4290 [2020-11-09 15:50:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22881 states. [2020-11-09 15:50:29,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22881 to 8847. [2020-11-09 15:50:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-11-09 15:50:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-11-09 15:50:29,165 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-11-09 15:50:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:29,165 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-11-09 15:50:29,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-09 15:50:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-11-09 15:50:29,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:29,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:29,168 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:29,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-11-09 15:50:29,375 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 15:50:29,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:29,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1198738568, now seen corresponding path program 1 times [2020-11-09 15:50:29,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:29,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764019497] [2020-11-09 15:50:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:29,523 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 15:50:29,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764019497] [2020-11-09 15:50:29,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808838664] [2020-11-09 15:50:29,524 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 15:50:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:29,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 15:50:29,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:29,854 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 15:50:29,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:29,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 15:50:29,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [573201284] [2020-11-09 15:50:29,855 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:29,857 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:29,864 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 55 transitions. [2020-11-09 15:50:29,865 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:30,147 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 15:50:30,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-09 15:50:30,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:30,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-09 15:50:30,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2020-11-09 15:50:30,148 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 18 states. [2020-11-09 15:50:31,108 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2020-11-09 15:50:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:33,066 INFO L93 Difference]: Finished difference Result 23928 states and 95439 transitions. [2020-11-09 15:50:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-09 15:50:33,067 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2020-11-09 15:50:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:33,264 INFO L225 Difference]: With dead ends: 23928 [2020-11-09 15:50:33,265 INFO L226 Difference]: Without dead ends: 23880 [2020-11-09 15:50:33,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=766, Invalid=3016, Unknown=0, NotChecked=0, Total=3782 [2020-11-09 15:50:33,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23880 states. [2020-11-09 15:50:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23880 to 9115. [2020-11-09 15:50:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-11-09 15:50:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-11-09 15:50:33,688 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-11-09 15:50:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:33,688 INFO L481 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-11-09 15:50:33,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-09 15:50:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-11-09 15:50:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:33,691 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:33,691 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:33,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:50:33,892 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 15:50:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 220660185, now seen corresponding path program 1 times [2020-11-09 15:50:33,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:33,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888344800] [2020-11-09 15:50:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:34,020 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 15:50:34,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888344800] [2020-11-09 15:50:34,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187329802] [2020-11-09 15:50:34,020 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 15:50:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:34,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-09 15:50:34,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:34,478 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 15:50:34,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:34,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 20 [2020-11-09 15:50:34,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [178393746] [2020-11-09 15:50:34,479 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:34,482 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:34,487 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 39 transitions. [2020-11-09 15:50:34,487 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:34,661 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 15:50:34,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-09 15:50:34,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:34,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-09 15:50:34,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2020-11-09 15:50:34,662 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 17 states. [2020-11-09 15:50:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:37,349 INFO L93 Difference]: Finished difference Result 24684 states and 98912 transitions. [2020-11-09 15:50:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-09 15:50:37,351 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2020-11-09 15:50:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:37,425 INFO L225 Difference]: With dead ends: 24684 [2020-11-09 15:50:37,425 INFO L226 Difference]: Without dead ends: 24623 [2020-11-09 15:50:37,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=631, Invalid=2561, Unknown=0, NotChecked=0, Total=3192 [2020-11-09 15:50:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24623 states. [2020-11-09 15:50:37,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24623 to 9320. [2020-11-09 15:50:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-11-09 15:50:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-11-09 15:50:37,957 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-11-09 15:50:37,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:37,957 INFO L481 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-11-09 15:50:37,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-09 15:50:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-11-09 15:50:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:37,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:37,959 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:38,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-11-09 15:50:38,160 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 15:50:38,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:38,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1934456551, now seen corresponding path program 2 times [2020-11-09 15:50:38,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:38,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746979645] [2020-11-09 15:50:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:38,311 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 15:50:38,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746979645] [2020-11-09 15:50:38,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158594295] [2020-11-09 15:50:38,311 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 15:50:38,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:50:38,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:38,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:50:38,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:38,678 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 15:50:38,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:38,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 15:50:38,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [275443451] [2020-11-09 15:50:38,679 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:38,681 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:38,684 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 15:50:38,684 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:38,685 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:38,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 15:50:38,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:38,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 15:50:38,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 15:50:38,686 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 12 states. [2020-11-09 15:50:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:39,946 INFO L93 Difference]: Finished difference Result 21469 states and 87720 transitions. [2020-11-09 15:50:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 15:50:39,948 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 15:50:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:40,013 INFO L225 Difference]: With dead ends: 21469 [2020-11-09 15:50:40,013 INFO L226 Difference]: Without dead ends: 21432 [2020-11-09 15:50:40,014 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 15:50:40,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21432 states. [2020-11-09 15:50:40,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21432 to 9401. [2020-11-09 15:50:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-11-09 15:50:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-11-09 15:50:40,532 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-11-09 15:50:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:40,532 INFO L481 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-11-09 15:50:40,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 15:50:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-11-09 15:50:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:40,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:40,535 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:40,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:50:40,735 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 15:50:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:40,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1934482312, now seen corresponding path program 2 times [2020-11-09 15:50:40,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:40,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688206625] [2020-11-09 15:50:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:40,879 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 15:50:40,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688206625] [2020-11-09 15:50:40,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227125528] [2020-11-09 15:50:40,879 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 15:50:40,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:50:40,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:40,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:50:40,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:41,142 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 15:50:41,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:41,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 15:50:41,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [779720746] [2020-11-09 15:50:41,143 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:41,146 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:41,149 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 15:50:41,150 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:41,150 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:41,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 15:50:41,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:41,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 15:50:41,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 15:50:41,151 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 12 states. [2020-11-09 15:50:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:42,649 INFO L93 Difference]: Finished difference Result 24049 states and 100334 transitions. [2020-11-09 15:50:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 15:50:42,650 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 15:50:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:42,727 INFO L225 Difference]: With dead ends: 24049 [2020-11-09 15:50:42,727 INFO L226 Difference]: Without dead ends: 24012 [2020-11-09 15:50:42,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2020-11-09 15:50:42,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24012 states. [2020-11-09 15:50:43,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24012 to 9396. [2020-11-09 15:50:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-11-09 15:50:43,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-11-09 15:50:43,306 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-11-09 15:50:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:43,306 INFO L481 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-11-09 15:50:43,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 15:50:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-11-09 15:50:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-09 15:50:43,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:43,309 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:50:43,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:50:43,510 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 15:50:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:43,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1934448987, now seen corresponding path program 2 times [2020-11-09 15:50:43,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:43,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726655517] [2020-11-09 15:50:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:43,655 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 15:50:43,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726655517] [2020-11-09 15:50:43,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949822847] [2020-11-09 15:50:43,656 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 15:50:43,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:50:43,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:50:43,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-09 15:50:43,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:43,929 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 15:50:43,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:43,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 18 [2020-11-09 15:50:43,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1094972712] [2020-11-09 15:50:43,930 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:43,932 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:43,936 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 23 transitions. [2020-11-09 15:50:43,936 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:43,936 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:50:43,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-09 15:50:43,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:43,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-09 15:50:43,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-11-09 15:50:43,938 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 12 states. [2020-11-09 15:50:44,753 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-09 15:50:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:45,419 INFO L93 Difference]: Finished difference Result 23916 states and 99572 transitions. [2020-11-09 15:50:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-09 15:50:45,420 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-09 15:50:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:45,498 INFO L225 Difference]: With dead ends: 23916 [2020-11-09 15:50:45,498 INFO L226 Difference]: Without dead ends: 23879 [2020-11-09 15:50:45,499 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 15:50:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23879 states. [2020-11-09 15:50:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23879 to 9426. [2020-11-09 15:50:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-11-09 15:50:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-11-09 15:50:46,098 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-11-09 15:50:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:50:46,098 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-11-09 15:50:46,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-09 15:50:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-11-09 15:50:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:50:46,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:50:46,102 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 15:50:46,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-11-09 15:50:46,303 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 15:50:46,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:50:46,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1759604926, now seen corresponding path program 1 times [2020-11-09 15:50:46,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:50:46,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495375921] [2020-11-09 15:50:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:50:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:46,465 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 15:50:46,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495375921] [2020-11-09 15:50:46,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971736093] [2020-11-09 15:50:46,466 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 15:50:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:50:46,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 15:50:46,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:50:46,901 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 15:50:46,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:50:46,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 23 [2020-11-09 15:50:46,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [204934110] [2020-11-09 15:50:46,902 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:50:46,905 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:50:46,920 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 105 transitions. [2020-11-09 15:50:46,920 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:50:47,917 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 15:50:47,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-09 15:50:47,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:50:47,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-09 15:50:47,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2020-11-09 15:50:47,919 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 26 states. [2020-11-09 15:50:59,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:50:59,298 INFO L93 Difference]: Finished difference Result 46653 states and 171055 transitions. [2020-11-09 15:50:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2020-11-09 15:50:59,300 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 25 [2020-11-09 15:50:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:50:59,439 INFO L225 Difference]: With dead ends: 46653 [2020-11-09 15:50:59,439 INFO L226 Difference]: Without dead ends: 46594 [2020-11-09 15:50:59,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12604 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=5196, Invalid=29586, Unknown=0, NotChecked=0, Total=34782 [2020-11-09 15:50:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46594 states. [2020-11-09 15:51:00,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46594 to 9691. [2020-11-09 15:51:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9691 states. [2020-11-09 15:51:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 44391 transitions. [2020-11-09 15:51:00,435 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 44391 transitions. Word has length 25 [2020-11-09 15:51:00,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:51:00,435 INFO L481 AbstractCegarLoop]: Abstraction has 9691 states and 44391 transitions. [2020-11-09 15:51:00,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-09 15:51:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 44391 transitions. [2020-11-09 15:51:00,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:51:00,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:51:00,439 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 15:51:00,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:51:00,641 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 15:51:00,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:51:00,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1115963617, now seen corresponding path program 1 times [2020-11-09 15:51:00,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:51:00,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991438949] [2020-11-09 15:51:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:51:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:00,779 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 15:51:00,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991438949] [2020-11-09 15:51:00,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495977678] [2020-11-09 15:51:00,780 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 15:51:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:00,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 15:51:00,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:51:01,251 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 15:51:01,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:51:01,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 22 [2020-11-09 15:51:01,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [904092456] [2020-11-09 15:51:01,252 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:51:01,254 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:51:01,265 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions. [2020-11-09 15:51:01,265 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:51:02,160 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 15:51:02,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-09 15:51:02,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:51:02,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-09 15:51:02,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2020-11-09 15:51:02,161 INFO L87 Difference]: Start difference. First operand 9691 states and 44391 transitions. Second operand 24 states. [2020-11-09 15:51:12,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:51:12,171 INFO L93 Difference]: Finished difference Result 45902 states and 168669 transitions. [2020-11-09 15:51:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2020-11-09 15:51:12,173 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 25 [2020-11-09 15:51:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:51:12,304 INFO L225 Difference]: With dead ends: 45902 [2020-11-09 15:51:12,304 INFO L226 Difference]: Without dead ends: 45843 [2020-11-09 15:51:12,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9808 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4008, Invalid=23382, Unknown=0, NotChecked=0, Total=27390 [2020-11-09 15:51:12,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45843 states. [2020-11-09 15:51:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45843 to 9814. [2020-11-09 15:51:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9814 states. [2020-11-09 15:51:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9814 states to 9814 states and 45150 transitions. [2020-11-09 15:51:13,174 INFO L78 Accepts]: Start accepts. Automaton has 9814 states and 45150 transitions. Word has length 25 [2020-11-09 15:51:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:51:13,174 INFO L481 AbstractCegarLoop]: Abstraction has 9814 states and 45150 transitions. [2020-11-09 15:51:13,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-09 15:51:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9814 states and 45150 transitions. [2020-11-09 15:51:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:51:13,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:51:13,178 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 15:51:13,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-11-09 15:51:13,379 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 15:51:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:51:13,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1023886943, now seen corresponding path program 2 times [2020-11-09 15:51:13,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:51:13,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979613901] [2020-11-09 15:51:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:51:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:13,727 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 15:51:13,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979613901] [2020-11-09 15:51:13,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842742176] [2020-11-09 15:51:13,728 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 15:51:13,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:51:13,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:51:13,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:51:13,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:51:14,198 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 15:51:14,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:51:14,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 23 [2020-11-09 15:51:14,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1711355436] [2020-11-09 15:51:14,199 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:51:14,202 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:51:14,211 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions. [2020-11-09 15:51:14,211 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:51:14,782 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 15:51:14,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 15:51:14,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:51:14,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 15:51:14,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 15:51:14,783 INFO L87 Difference]: Start difference. First operand 9814 states and 45150 transitions. Second operand 22 states. [2020-11-09 15:51:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:51:22,156 INFO L93 Difference]: Finished difference Result 35721 states and 134656 transitions. [2020-11-09 15:51:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-11-09 15:51:22,158 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-11-09 15:51:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:51:22,260 INFO L225 Difference]: With dead ends: 35721 [2020-11-09 15:51:22,261 INFO L226 Difference]: Without dead ends: 35681 [2020-11-09 15:51:22,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4569 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2178, Invalid=12342, Unknown=0, NotChecked=0, Total=14520 [2020-11-09 15:51:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35681 states. [2020-11-09 15:51:23,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35681 to 9811. [2020-11-09 15:51:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9811 states. [2020-11-09 15:51:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 45097 transitions. [2020-11-09 15:51:23,056 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 45097 transitions. Word has length 25 [2020-11-09 15:51:23,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:51:23,056 INFO L481 AbstractCegarLoop]: Abstraction has 9811 states and 45097 transitions. [2020-11-09 15:51:23,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 15:51:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 45097 transitions. [2020-11-09 15:51:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:51:23,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:51:23,060 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 15:51:23,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:51:23,261 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 15:51:23,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:51:23,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1023861182, now seen corresponding path program 2 times [2020-11-09 15:51:23,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:51:23,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008177627] [2020-11-09 15:51:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:51:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:23,446 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 15:51:23,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008177627] [2020-11-09 15:51:23,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997536317] [2020-11-09 15:51:23,447 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 15:51:23,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-09 15:51:23,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:51:23,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-09 15:51:23,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:51:23,942 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 15:51:23,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:51:23,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 23 [2020-11-09 15:51:23,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1812486402] [2020-11-09 15:51:23,943 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:51:23,946 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:51:23,958 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions. [2020-11-09 15:51:23,958 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:51:24,668 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 15:51:24,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 15:51:24,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:51:24,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 15:51:24,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-11-09 15:51:24,669 INFO L87 Difference]: Start difference. First operand 9811 states and 45097 transitions. Second operand 22 states. [2020-11-09 15:51:32,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:51:32,594 INFO L93 Difference]: Finished difference Result 35239 states and 132786 transitions. [2020-11-09 15:51:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2020-11-09 15:51:32,596 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-11-09 15:51:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:51:32,692 INFO L225 Difference]: With dead ends: 35239 [2020-11-09 15:51:32,692 INFO L226 Difference]: Without dead ends: 35199 [2020-11-09 15:51:32,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4946 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2340, Invalid=13410, Unknown=0, NotChecked=0, Total=15750 [2020-11-09 15:51:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35199 states. [2020-11-09 15:51:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35199 to 9699. [2020-11-09 15:51:33,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9699 states. [2020-11-09 15:51:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9699 states to 9699 states and 44550 transitions. [2020-11-09 15:51:33,392 INFO L78 Accepts]: Start accepts. Automaton has 9699 states and 44550 transitions. Word has length 25 [2020-11-09 15:51:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:51:33,392 INFO L481 AbstractCegarLoop]: Abstraction has 9699 states and 44550 transitions. [2020-11-09 15:51:33,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-09 15:51:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 9699 states and 44550 transitions. [2020-11-09 15:51:33,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:51:33,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:51:33,396 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 15:51:33,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-11-09 15:51:33,597 INFO L429 AbstractCegarLoop]: === Iteration 28 === [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 15:51:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:51:33,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1124141246, now seen corresponding path program 3 times [2020-11-09 15:51:33,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:51:33,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140543021] [2020-11-09 15:51:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:51:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:33,767 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 15:51:33,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140543021] [2020-11-09 15:51:33,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147904253] [2020-11-09 15:51:33,768 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 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:51:33,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-11-09 15:51:33,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-09 15:51:33,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 15:51:33,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:51:34,211 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 15:51:34,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:51:34,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 23 [2020-11-09 15:51:34,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1374205406] [2020-11-09 15:51:34,212 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:51:34,215 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:51:34,225 INFO L252 McrAutomatonBuilder]: Finished intersection with 58 states and 89 transitions. [2020-11-09 15:51:34,225 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:51:34,988 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 11 new interpolants: [1185744#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 1185745#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1185735#(<= (+ thr2Thread1of5ForFork1_~t~0 3) ~n~0), 1185738#(<= (+ ~x~0 3) ~n~0), 1185739#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 1185736#(<= (+ thr2Thread1of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1185737#(<= (+ thr2Thread1of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1185742#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1185743#(<= (+ ~x~0 4) ~n~0), 1185740#(<= (+ thr2Thread2of5ForFork1_~t~0 4) ~n~0), 1185741#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0)] [2020-11-09 15:51:34,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-09 15:51:34,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:51:34,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-09 15:51:34,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1123, Unknown=0, NotChecked=0, Total=1260 [2020-11-09 15:51:34,989 INFO L87 Difference]: Start difference. First operand 9699 states and 44550 transitions. Second operand 24 states. [2020-11-09 15:51:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:51:49,553 INFO L93 Difference]: Finished difference Result 47295 states and 172892 transitions. [2020-11-09 15:51:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2020-11-09 15:51:49,554 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 25 [2020-11-09 15:51:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:51:49,675 INFO L225 Difference]: With dead ends: 47295 [2020-11-09 15:51:49,675 INFO L226 Difference]: Without dead ends: 47259 [2020-11-09 15:51:49,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15889 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=6308, Invalid=35922, Unknown=0, NotChecked=0, Total=42230 [2020-11-09 15:51:49,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47259 states. [2020-11-09 15:51:50,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47259 to 9269. [2020-11-09 15:51:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9269 states. [2020-11-09 15:51:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 42353 transitions. [2020-11-09 15:51:50,601 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 42353 transitions. Word has length 25 [2020-11-09 15:51:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:51:50,601 INFO L481 AbstractCegarLoop]: Abstraction has 9269 states and 42353 transitions. [2020-11-09 15:51:50,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-09 15:51:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 42353 transitions. [2020-11-09 15:51:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-09 15:51:50,604 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:51:50,604 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 15:51:50,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-11-09 15:51:50,805 INFO L429 AbstractCegarLoop]: === Iteration 29 === [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 15:51:50,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:51:50,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1218570546, now seen corresponding path program 1 times [2020-11-09 15:51:50,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:51:50,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795122471] [2020-11-09 15:51:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:51:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-09 15:51:50,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795122471] [2020-11-09 15:51:50,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679184758] [2020-11-09 15:51:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:51:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:51:51,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-09 15:51:51,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-09 15:51:51,514 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 15:51:51,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-09 15:51:51,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 22 [2020-11-09 15:51:51,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1827946184] [2020-11-09 15:51:51,515 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:51:51,517 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:51:51,525 INFO L252 McrAutomatonBuilder]: Finished intersection with 50 states and 73 transitions. [2020-11-09 15:51:51,525 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:51:52,217 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 10 new interpolants: [1252019#(<= (+ thr2Thread2of5ForFork1_~t~0 4) ~n~0), 1252018#(<= (+ ~x~0 2) ULTIMATE.start_main_~i~0), 1252017#(<= (+ thr2Thread3of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1252016#(<= (+ ~x~0 3) ~n~0), 1252023#(<= (+ ~x~0 4) ~n~0), 1252022#(<= (+ thr2Thread2of5ForFork1_~t~0 1) ULTIMATE.start_main_~i~0), 1252021#(<= (+ thr2Thread2of5ForFork1_~t~0 2) ULTIMATE.start_main_~i~0), 1252020#(<= (+ thr2Thread2of5ForFork1_~t~0 3) ULTIMATE.start_main_~i~0), 1252024#(<= (+ ~x~0 3) ULTIMATE.start_main_~i~0), 1252015#(<= (+ thr2Thread3of5ForFork1_~t~0 3) ~n~0)] [2020-11-09 15:51:52,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-09 15:51:52,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:51:52,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-09 15:51:52,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2020-11-09 15:51:52,218 INFO L87 Difference]: Start difference. First operand 9269 states and 42353 transitions. Second operand 22 states. Received shutdown request... [2020-11-09 15:51:55,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-11-09 15:51:55,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-09 15:51:55,288 WARN L546 AbstractCegarLoop]: Verification canceled [2020-11-09 15:51:55,292 WARN L250 ceAbstractionStarter]: Timeout [2020-11-09 15:51:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:51:55 BasicIcfg [2020-11-09 15:51:55,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:51:55,293 INFO L168 Benchmark]: Toolchain (without parser) took 232846.74 ms. Allocated memory was 159.4 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 133.6 MB in the beginning and 3.8 GB in the end (delta: -3.6 GB). Peak memory consumption was 668.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,293 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 159.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:51:55,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.40 ms. Allocated memory is still 159.4 MB. Free memory was 132.9 MB in the beginning and 136.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.80 ms. Allocated memory is still 159.4 MB. Free memory was 136.4 MB in the beginning and 134.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,294 INFO L168 Benchmark]: Boogie Preprocessor took 30.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.3 MB in the beginning and 133.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,295 INFO L168 Benchmark]: RCFGBuilder took 465.41 ms. Allocated memory is still 159.4 MB. Free memory was 132.7 MB in the beginning and 112.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,295 INFO L168 Benchmark]: TraceAbstraction took 231574.55 ms. Allocated memory was 159.4 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 111.7 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 646.5 MB. Max. memory is 8.0 GB. [2020-11-09 15:51:55,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 159.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 672.40 ms. Allocated memory is still 159.4 MB. Free memory was 132.9 MB in the beginning and 136.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 84.80 ms. Allocated memory is still 159.4 MB. Free memory was 136.4 MB in the beginning and 134.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.3 MB in the beginning and 133.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 465.41 ms. Allocated memory is still 159.4 MB. Free memory was 132.7 MB in the beginning and 112.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 231574.55 ms. Allocated memory was 159.4 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 111.7 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 646.5 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: 4.5s, 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: 4.5s, 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: 5.1s, 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: 5.6s, 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: 7.4s, 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 (9269states) and FLOYD_HOARE automaton (currently 40 states, 22 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 71 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 231.1s, OverallIterations: 61, TraceHistogramMax: 5, AutomataDifference: 146.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 27.8s, HoareTripleCheckerStatistics: 2320 SDtfs, 18800 SDslu, 14721 SDs, 0 SdLazy, 44474 SolverSat, 2571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3694 GetRequests, 586 SyntacticMatches, 40 SemanticMatches, 3067 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113152 ImplicationChecksByTransitivity, 101.6s 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: 19.5s AutomataMinimizationTime, 56 MinimizatonAttempts, 593784 StatesRemovedByMinimization, 50 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 1829 NumberOfCodeBlocks, 1829 NumberOfCodeBlocksAsserted, 130 NumberOfCheckSat, 1672 ConstructedInterpolants, 0 QuantifiedInterpolants, 191636 SizeOfPredicates, 226 NumberOfNonLiveVariables, 5070 ConjunctsInSsa, 410 ConjunctsInUnsatCore, 95 InterpolantComputations, 19 PerfectInterpolantSequences, 265/844 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